Science topics: Nutrition and DieteticsNutrient Management
Science topic
Nutrient Management - Science topic
Explore the latest questions and answers in Nutrient Management, and find Nutrient Management experts.
Questions related to Nutrient Management
What role do machine learning algorithms play in optimizing irrigation and nutrient management for millet crops?
What is the significance of using this approach from the point view of improving agricultural productivity, soil health, and environmental quality?
How can agroecological practices such as diversified cropping systems, integrated nutrient management, and ecological pest control transform the intensive cereal-based farming of the Indo-Gangetic Plains towards achieving sustainable and nutritious food production?
How effective are the recommended package of practices (including improved seed varieties, optimal sowing time, nutrient management, and integrated pest management) in enhancing the yield and profitability of major oilseeds and pulse crops across different agro-climatic zones of India?
How can Site-Specific Nutrient Management be incorporated into broader CSA strategies to contribute to greenhouse gas mitigation, improved nitrogen use efficiency, and enhanced soil carbon sequestration, and what role should policymakers and investors play in mainstreaming these co-benefits at regional and national levels?
Much has been discussed about precise nutrient management. I’m curious, how is GreenSeeker-based nitrogen fertilizer applied in rice? How much nitrogen is determined based on the NDVI values observed, and is there a standard protocol followed for this approach?
How can precision nutrient management techniques, such as site-specific nutrient application and remote sensing technologies, help optimize fertilizer use efficiency, reduce environmental pollution, and enhance farmers' income in diverse cropping systems?
What are the major challenges and opportunities associated with implementing precision nutrient management strategies in different agro-climatic regions, and how can policymakers and agricultural extension services support farmers in overcoming these barriers?
How can precision nutrient management be integrated with sustainable farming practices, such as conservation agriculture and organic farming, to improve soil health, increase crop yields, and enhance farmers' income while ensuring long-term environmental sustainability?
What role do innovative digital tools, such as artificial intelligence (AI), Internet of Things (IoT), and machine learning, play in improving nutrient management practices, and how can their adoption be scaled up among smallholder farmers for increased productivity and profitability?
Recently, I was honored to be invited to serve as the academic editor for a forthcoming book on phosphorus, tentatively titled "Environmental Management of Phosphorus - From Biogeochemistry to Sustainable Practice." This book aims to provide a comprehensive exploration of phosphorus management by bridging cutting-edge research with practical applications to address critical environmental challenges.
The book will delve into the fundamental processes governing phosphorus cycling in ecosystems, highlighting traditional biological and chemical pathways, such as phosphorus sorption and precipitation, while incorporating recent discoveries, including the role of inorganic nanoparticles in hydrolyzing organic phosphorus. This approach seeks to establish a modern understanding of phosphorus dynamics in both natural and engineered systems.
A key focus will be strategies to mitigate phosphorus pollution, particularly in on-site wastewater treatment. Topics will include the optimization of filter systems, the use of advanced filtration materials, and the integration of chemical and natural processes to enhance nutrient retention and prevent eutrophication. The book will also address sustainable phosphorus use in agriculture, emphasizing the balance between productivity and environmental stewardship. Strategies such as precision fertilization, soil amendments, runoff reduction techniques, and phosphorus recovery and reuse will be explored to provide actionable solutions for sustainable nutrient management.
Additionally, the book will examine advances in phosphorus analysis and environmental sensor technologies. It will highlight cutting-edge techniques for detecting and quantifying phosphorus in complex environmental matrices, including innovations in electrochemical and optical sensors for real-time monitoring of phosphorus in water, soil, and wastewater systems. The importance of precise data for effective phosphorus management and resource recovery will also be emphasized.
This book is designed to equip scientists, policymakers, and practitioners with innovative tools and knowledge to address phosphorus-related environmental challenges, paving the way for sustainable practices that benefit future generations.
If you are interested in contributing a chapter to this book, please feel free to contact me for further details.
Thank you, and I look forward to hearing from you.
Currently, Agricultural science is advanced. Unfortunately, precise nutrient management is not implemented by all the farmers, but most of the farmers are doing annual soil tests. we need crop-specific and location-specific nutrient recommendations (like STCR equation). A precise Fertilizer recommendation for crops is required.
Currently, most of the fertilizer recommendations are based on crop requirements and the soil analysis value will be classified as low, medium, and high. if it is the medium recommendation and requirement are the same, otherwise a 25 % variation. how we can use plant tissue analysis data can be used for the nutrient recommendation.
Summarize the STCR approach for fertilizer recommendations in agriculture. Analyze the components of the approach and discuss its effectiveness in optimizing nutrient management for different crops.
Hello,
I'm interested in exploring life cycle analysis for composting toilet, specifically focusing on various scenarios related to nutrient removal. Can you recommend any articles or provide suggestions that could assist me in my research?
Thank you very much
Hello,
I'm interested in exploring life cycle analysis for septic tanks, specifically focusing on various scenarios related to nutrient removal. Can you recommend any articles or provide suggestions that could assist me in my research?
Thank you very much
What is the difference between the percentage of nutrient recovery and nutrient removal achieved by the struvite precipitation technology?
Compare and contrast the nutrient management strategies for maintaining soil fertility in conventional agriculture versus organic farming. Discuss their ecological and economic implications.
Why do leaves get burn after receiving foliar nitrogen application?
i need research papers related to weather forecasting in managing chemical spray or nutrient management in crops ?
What are the best practices for nutrient management in different cropping systems, and how can fertilizer use efficiency be improved?
It is said that lava contains many valuable plant nutrients and plants grow particularly well on solidified lava. Lava is also a particularly fertile soil for plant growth.
Hello everyone,
I am growing tomatoes plants in greenhouse on an inert substrate consisted of only perlite.
I would like to apply potassium K stress and thus I would like to use Hoagland nutrient solution.
As the nutrient solution is described for hydroponics, I was wondering whether it is useful to apply it also on perlite, and in case yes what is the procedure?
I could not find in literature but in case someone knows anything or knows a good paper please let me know.
Thanks
Nanotechnology proved to be effective in medical,industry, and other important sectors. The ambition of nanomaterials in agriculture is to reduce the amount of spread chemicals, minimize nutrient losses in fertilization and increased yield through pest and nutrient management. Are they really effective?? And which application proved to be applicable?
Urea is the major nitrogen fertilizer in India almost 80% of the nitrogen fertilizer is in the form of urea, so application dynamics of urea with relation to irrigation has a prime importance to increase the NUE and WUE.
Now a days many techniques are available on crop nutrition such as soil testing, plant testing, foliar diagnosis, soil test crop response method and colour chart method etc. Though many number of methods are available to diagnose deficiency or toxicity of nutrients either in soil or on crop plants , identification of type and level of nutrient deficiency or toxicity is difficult for recommending nutrient application. In this connection, discussion on soil mineral resource identification, nutrient release from the particular mineral and quantity of elements release my give better idea on nutrient management for agri / horti /forestry crops especially in organic agriculture.
Nutrients management is main problem in calcareous soils
In the case of nutrient management practices, what kind of changes can we expect in dry matter % as compared to the control where no nutrient was supplied. If we consider a known amount of fresh sample weight whether the dry matter % will increase or decrease in plants having sufficient nutrient supply as compared to the control?
Elaboration:
1. There are two plot conditions; the first one does not have an external nutrient supply hence facing nutritional deficiency ( control) and the second one has sufficient supply of nutrients (NM). All the other factors are kept same.
2. Now we have taken a known amount of fresh chopped sample (say 500 grams) for both the treatments and oven-dried it following the standard procedure.
3. What kind of outcome can we expect for dry matter percentage? whether the Drymatter% of control sample will be higher than the NM or vice-versa?
We have tried to use FYM for partial replacement of Urea N and simulated with DSSAT. Unfortunately we could not get any effect of it. The model is simply taking the Urea-N ignoring the effect of FYM. Can anyone help us.
For nutrient management, primarily based on multilocation trials, blanket fertilizer recommendations (RDF) given to crop, without considering soil nutrient status. Secondly based on Soil fertility chart, fertilizer doses are manipulated. Over these two Nutrient management concept, STCR and IPNS have shown favourable responses on crop yield and soil health. Among these Which one more sustainable in improving crop yield and soil health.
Dear All scientific community, please help me to understand the function and mode os application of silica a nutrient to the plants. Is it really worth to apply this as a foliar nutrition, is yes which is the right source for that.
I plan on conducting the research using slow-release P fertilizers prepared by activating the dolomite phosphate rocks using organic acids. The research question is,
Is slow release fertilizer conducive for plant production?
To answer this question I need to study and quantify the release mechanism of it. What could be the best approach?
I plan on conducting Lab incubation / green house studies in the beginning followed by field works. What soil and plant measurements, (and how) I should take?
During last 5-6 decades we have generated enough data from traditional experiments on nutrient management with graded levels of fertilizers in almost all systems and situations. Research on permutations & combination of chemical fertilizer is still going on. Is there any need to continue the same for some more decades? OR agronomists should focus more on: (1) nutrient management on the basis of soil fertility status and crop's removal, (2) STCR, (3) SSNM, (4) nano fertilizer, (5) soil fertility analysis by hyperspectral imagery & nutrient management. Certainly for developing & tropical countries INM should be considered to supply nutrients, not to rely only on chemicals, targeting production sustainability.
Like boron is a crucial nutrient for Cauliflower. Does broccoli has any kind of such crucial nutrient impacting on yield and quality ?
which nutrient could be responsible for higher curcumin percentage and essential oil in turmeric?
Integrated nutrient management based on combined use of organic amendments and chemical fertilizers is very common in South Asia. A large number of researchers have proven its usefulness in terms of better yields than when same amount of nutrients are applied as mineral fertilizers. However, not much information is available as to how much these systems contribute to global warming through emission of nitrous oxide. Recently, researchers from China have a published several papers on this topic.
Is there a way to stimulate carotenoid (beta-Carotene) biosynthesis on field ?
Furthermore is there a correlation of the Sweet-potato skin color with any fertilization practices ? (more intense orange skin color)
I want to get a list of funding agencies who supports nutrient management research specifically in cereal based cropping systems.
Many farmer's are applying the fertilizers through foliar, and they are continuously asking what is the use efficiency of this Fertilizer through foliar application, and how to increase the efficiency, please suggest.
Is SPAD values of flag leaves were significantly affected by differential fertilizer management?
Is any correlations with grain yield and different growth stages of crop?
With Soybean target yield of 18 quintal per acre, I am applying (all dose per acre)
40 kg P2O5 (soil Olsen P is 20 ppm),
45 kg murate of potash (soil K 180 ppm),
10 kg sulphur (gandhak)
Micronutrients mix, sulphate salts of
10 kg Zn and Fe each; 2 kg Cu and Mn
And 1kg Mo and B.
In addition 2 T Vermicompost
(Along with Rizobium and PSB seed treatment)
In highly cited review paper on Soybean N uptake, there is reference of 200 Kg N uptake (above ground biomass) by 20 qtl / acre Soybean. With 20% in below ground. This is 240 kg/acre. Assuming 40 % uptake from BNF, this works out to be ~ 140 kg. However excess basal dose negativity affects nodule establishment. So I propose to experiment a split application: Basal 40 kg (Ammonium in DAP + Urea). Which should be the next points of applications?? And in what form?
I am thinking of conducting a research in Terai of Nepal based on the principle of Site Specific Nutrient management in Rice. The farming of Rice in the region is lowland and rainfed, while the cropping system is either, Rice-Wheat, Rice-Maize or Rice-Mustard/Lentil or Rice-Fallow depending upon places. I want to perform research in the farmer's field rather than research station, so I'm looking to hear from you, about the best SSNM approach for the farmer's field, so that farmers can also benefit from the research. Thank you!
SSNM is a general concept for optimizing the demand and supply of nutrients according to their variation in space and time. What should be the right approach to evaluate it, Is it a component of site-specific crop management or precision farming?
Redox state and prevailing ambiance influence heavy metal inactivation and detoxification as well as transformation of nutrients (C, N & P) in soil and aquatic environment
A large amount of nutrient waste is getting disposed in surface water sources. Point and non point sources of pollutants are disposing their waste into the surface water sources. is there any free nutrient model available for nutrient management at regional basis.
In my study, planktonic individual & planktonic consortia mode of bacteria was used for nutrient (ammonia, nitrate and phosphate) removal. The obtained result was the highest nutrient removal with planktonic individual than planktonic consortia.Why?
Im looking for literature on potassium and phosphate leaching in apple orchards.
I have papers by Neilsen 1985 and Siczek 2008, but I'm really looking for something more substantial, either journal papers or reports.
Few aspects: pre- sown, mid course and post-harvest advisories, soil health service, water and nutrients management, general package of practices, problem soils remedies, insects-pests forecasting, market intelligent systems, forewarning systems, weather-based agro-advisories etc
specific examples of successes at regional scales
Most of decision tools are preliminary or very crude or based on simple thum rules
Large useful information available, but scattered, not collated on common decision platform
Special section to be created for problem/degraded lands
Problem in yield forecasting in areas under intensive agriculture or for tropical/sub-tropical geographies
Contrasting results sometimes available in published literature, bring us at confused platform, possibly in a hurry to publish results by some of the research groups
Central platform of knowledge dissemination most of the time missing
Isolated subject matter research outputs, not collated for a systems' approach
May i am indicating more negative points, in order to create discussion, although significant research being/has been done by most of the researchers
Need of advanced computational methods/professionals to create DSS, effective to integrate relational layers and crop simulation tools for the decision making
regards
To me as a crop modeller, very tough situation-
Many nutrients,
Non-linear and complex interaction amongst them for availability and uptake
Complex behaviour under different production environments
Not following any definitive behaviour, which could be expressed through numeric approach
Technical coefficient, thumb rule, experts judgement followed
STCR equations show location and temporal specificity
Modelling multi-nutrients system on dymanic/mechanistic scale too cumbersome
Mechanistic cum empirical approach seems solution, but to be initiated through coordinated networks
Soil biological aspects happen to be relatively weak in crop simulation models, although incorporated, but rather in a very crude and empirical way
pl help the group to handle this situation
regards
Soil health assessment to be used for irrigation/nutrients management, tillage options, identification of suitable resource conservation technologies
Soil health assessment in terms of soil physical, chemical, physico-chemical and biological health
Soil quality index to be computed from easily determinable and easily available soil parameters
Effective application of these methods on operational scale
Just taking samples from the topsoil? And what depth is for you the top soil => ploughing depth (e.g. 25 cm) or working depth e.g. working depth of the cultivator (e.g. 12 cm)? And what does the difference from 12 cm to 25 cm mean for the calculating of the right amount of nutrients?
Or do you recommend to do the soil sampling for the analysis of P, K and Mg for the subsoil also?
To have soil samples for the topsoil (0 -30 cm) and from the subsoil (30 – 60cm), does make it senses? And how do you will take the results from the subsoil into account for the calculating of the right amount of nutrients?
Thank you for your answers!
Best greetings from Osnabrück, Stefan Hinck
Hello All...
I am here to know that what is the effective dose of botanicals under field condition for the nutrient management. Please be known that many scientist have used botanical on the basis of N contents @110 kg N/ha. There is lot of confusion in the recommendation of botanicals' dose. Some where I have found 3 or 5 10 or 12.5 or 20 or 25 tonnes/ha for the same crop even in the same area and same crop.
Experts are requested to suggest in this matter.
Rizwan Ali Ansari
Dear friends
I agree that the nutritional composition of the food crops, fruits and vegetables can be improved through breeding, transgenic and other biotechnological approaches. Is it possible to increase the nutrient content i.e. Zn content in particular variety of any crops through nutrient management and microbial interventions?. Eg. P content in banana varying from 0.20% to 0.35% due to nutrient management and microbial interventions. Whether this kind of variation is possible or not? If it is so, the entire nutritional compositions of fruits or vegetables will vary accordingly. Some clarity is required in this regard.
I'm working on nutrient management in lowlands under rice production
Fertilizers are considered major drivers of agriculture , contributing nearly half of the total cost involved in production of any crop. Of late , there has been paradigm shift in fertlizer use from straight conventional fertilizers to complex fertilizers to customised fertilizers. In this background , i am proposing following issues to be addressed with central theme of inter-relation between customised fertilizers and site specific nutrient management through comprehensive discussion :
* Distinct benefits of customised fertilizers over conventional fertilizers.
* Customised fertilizer use as virtual answer to emerging multiple nutrient deficiencies.
* Crop -specific customised fertilizers.
* Soil -specific customised fertilizers in the light of soil fertility variogram.
* Customised fertilizerss compatibility with fertigation and hydroponic use.
* Customised fertilizers and fertilizer-use-efficiency.
Thanks and regards for your precious responses
Because of the future phosphorus deficiency in the world, I am looking for possible solutions/possibilities within onion and potato plant breeding focused on nutrient-efficiency and phosphorus uptake in particular.
Behavior of crops and soils is never uniform on a geographic unit , necessitating further the utility of correct diagnosis-based nutrient application . However, there are still many discrepancies in optimizing the crop response , distinct failure to produce economic response of fertilizer is one of them . Highlighting these issues, my present set of questions is dedicated:
* Do you feel, if different crops are grown on the same soil type, fertilizer recommendation will change?
* How do we arrive at crop-based fertilizer recommendation?
* How does such fertilizer recommendations take into account the residual and cumulative effects of fertilizers?
* Do you feel, soil test/plant analysis -based crop response is still the only diagnostic basis of such crop behavior?
* If so , how will you determine the efficacy of one test over other test methods?
*What is the utility of 4R-Nutrient Stewardship in optimizing the crop nutrient response?
Thanks and Regards
1. Lot of information on soil test values (spatio-temporal)) available
2. Soil quality indices e.g. SQI by Ratan Lal et al, Cornell soil health index, STCR network ar Indian Institute of Soil Science etc available for application
3. Potential of use in nutrients management, water management, tillage options, crops'/cropping systems suitability, residue management, problem soils management demonstrated mainly on research farm fields with limited scale case studies in smaller regions
4. e-communication of advisory to farmers (demonstrated at limited scale)
No real effective soil health service, specifically in regions with intensive agriculture (in particular south asia, south-east asia, regions in africa)?
How to handle the situation for effective operational soil health service?
Number of methods ( Soil fertilization , Foliar fertilization , Trunk nutrition , Fertigation , Organic manuring , Integrated nutrient management ) are adopted in meeting the nutrient requirement of crops. These methods of fertilization have their own merits and demerits , depending upon the crop , soil conditions ,agroclimate etc . It is equally difficult to claim one method of fertilization as most efficient , since fertilizer-user-efficiency is the major concern . I have following questions to offer to my learned colleagues to respond please:
* Foliar fertilization is more suitable to which kind crops?
* What are the basic foliar characteristics of a crop to facilitate better efficacy of foliar applied nutrients?
* Do we need to neutralize the pH of the foliar solution ?
* Whether use of surfacetant will improve the efficacy of foliar applied nutrients ?
* Is there any role of microbial formulations to be a part of foliar sprays ?
* Why a foliar spray of multi-micronutrients , especially containing Fe, Mn and Zn together develops toxicity symptoms on the foliage?
* What are ways and means to improve the efficacy of foliar applied nutrients?
* How can we domesticate the conventional micronutrient fertilizers for effective foliar sprays?
I know the best time for applying fertilizer for mature plants are after rainfall seasons means between 6 or 8 months. I want to know more specific time (the months ) for that in Malaysia
Thank you so very much
Mohammad Yadegari
We know that sodium is the most important ion for HD patient for weight gain in the interdialytic period. I mean, if the patient has a lot of salt, weight gain will increase. Is the same situation valid for the dialysate sodium levels? If dialysate sodium is higher, can sodium loading be dangerous to the patient?
What is the recommendation for the period of basic soil nutrients P, K, Mg sampling on arable land? All 3 to 4 years, ... shorter or longer?
Thank you! With best regards from Osnabrück, Stefan
Perennial crops are distinctly different than annuals ,in terms of long juvenile period, perennial framework , long annual growth cycle etc . Number of nutrient management practices are in vogue. These practices comprise of :conventional basin application of nutrients using the optimum dose , microbially loaded organic manures plus rainfed green manuring , integrated nutrient management involving a combination of inorganic fertilizers , organic manures, and single/multiple inoculation of microbes, fertigation , site specific nutrient management , biodynamic farming, Panchgavya farming etc , all with only one objective to meet the nutrient demand of the crop through balanced fertilization , taking into the account , the nature and properties of soil . It is really point of debate amongst researchers, as which method of fertilization stands out to be the best . I invite the comments of our esteemed researchers.
I am working on optimization of nitrogen in maize and want to compare different regression models to determine economic optimum rate. I found somewhere in literature that quadratic model did not give valid description of the yield responses and tended to indicate the optimal rate of fertilization that were too high and the same happened in my work also. Quadratic plus plateau model may best describe the yield response but I do not have any idea how to develop such a model and which software is useful in this regard.
The nutrient status of arable land has to be determined. The soil sampling is vehicle-based and is carried out in the tramline.
Is soil sampling in the tramline recommendable ?
I would be interested to know if after a full cycle of forest plantations of Pinus sp without fertilization, if they could recover the initial level of nutrients (e.g. by atmospheric deposition) or if that level is never recovered.
Please provide me the information if you have . it is needed for my research work.
I want to evaluate the role of sulfur and zinc on weed emergence in Dry Direct Seeded Rice.