Debjyoti Majumder

• Ph.D with ASRB NET in agricultural Meteorology
• Former SUBJECT MATTER SPECIALIST at Malda Krishi Vigyan Kendra

Enhancing crop water productivity by genetic improvements or agronomic manipulations and reducing evapotranspiration losses from soil and plant surface is the need of the hour. Selection and breeding of traits which lead to increase in crop and water productivity like early maturing and stress tolerant cultivars with deep and thick root system, hai...

Soil organic carbon is a term that describes the carbon resulting from the breakdown of organic matter deposited in the soil. It plays a vital role in improving soil health and productivity. Soil organic matter consists of both plant and animal remains that are decomposed by microorganisms, earthworms and other biota in the soil. Sustaining ecosyst...

The ORYZA2000 model, developed by the International Rice Research Institute (IRRI) and Wageningen University, is a sophisticated tool for accurately predicting rice growth cycles and development under varying conditions. It excels in replicating ield-level crop growth through meticulous calibration and validation across different agroecological set...

By analysing biochemical composition, assessing soil quality, projecting yields, predicting productivity, identifying illnesses, and predicting productivity, artificial intelligence (AI) has greatly improved sugarcane cultivation. This study discusses the latest research on artificial intelligence (AI) in sugarcane farming, with particular attentio...

High production potential and financial benefits of Rabi maize over conventional crops like rice and wheat have made it an essential crop in West Bengal. Accurate crop modeling is essential to assess the effects of climate change and optimize crop management. The Decision Support System for Agro-technology Transfer (DSSAT v-4.6) was used in this wo...

A study was conducted in sandy clay loam soils in a subtropical zone of Bihar to evaluate the effect of frequent application of organic amendments on sulphur fractions. Different organic amendments, including farmyard manure (FYM), vermicompost, azotobacter, phosphate solubilizing bacteria (PSB), panchagawya, and neem cake, were applied through nin...

Intensive land use damages the agro-ecosystems in different ways. Heavy metal pollution downregulates the balance of the ecosystem, reduces soil characteristics, and affects crop productivity. Due to its promise as a soil conditioner, agricultural, environmental, and energy sectors are intensively applying biochar. The potential of biochar has been...

Intensive land use damages the agro-ecosystems in different ways. Heavy metal pollution downregulates the balance of the ecosystem, reduces soil characteristics, and affects crop productivity. Due to its promise as a soil conditioner, agricultural, environmental, and energy sectors are intensively applying biochar. The potential of biochar has b...

Rising temperatures, altered rainfall patterns, and the frequency of pests and diseases are just few of the indications of climate change (CC) impacting agricultural productivity, produce quality, storability etc. CC has a profound and significant impact on production risk, especially in places with limited soil and water resources. Agriculture's r...

For the purpose to evaluate soil health and maximize resource management, climate-smart agriculture depends on scientific soil sampling. Farmers can determine organic matter levels, soil reactions, and nutrient deficiencies by methodically gathering and examining soil samples. By using this information, soil amendments and fertilizer applications c...

Edible mushrooms are part of a delicious and nutrient-dense vegetarian diet. KVK Malda conducted front-line demonstrations and trainings to evaluate the profitability of oyster mushroom production from 2020 to 2022. It is found from the study that the benefit-cost ratio of oyster mushroom cultivation was significant, and the majority of the respond...

This paper investigates diverse techniques for enhancing underground water tables to mitigate water scarcity issues. It assesses the efficacy of methods such as rainwater harvesting, artificial recharge mechanisms, and sustainable land management practices in replenishing groundwater resources. Through a comprehensive review of existing literature...

Melatonin (MEL) is an indolamine found naturally in many plants. It has been proven to cause a variety of metabolic, physiological, and cellular responses, altering growth and development, especially when exposed to various environmental conditions. MEL fills in as a flagging particle in plants, causing various physiological reactions including exp...

In India about 86.2% farmers are Small and marginal who own less than two hectares of arable land. In the age of intense and mechanized crop production, small and marginal farmers need timely and affordable agricultural equipment to make decisions. Their economic situation, tiny land holdings, and high farm implement prices prevent them from buying...

Climate change has significant impact on all components of the hydrological cycle. Warming scenarios and increased uncertainty in rainfall behavior may lead to increase in crop water requirements and decrease in its availability for irrigation. As a result, ground water resource is being depleted at alarming rates in many regions of the earth, espe...

Micronutrient malnutrition is a severe threat towards social as well as health status of the country throughout the world. Nutrition is essentially addressed to lessen the severity of the diseases in a strategic manner in terms of in-built resistance of the body which is contributed though consumption of quality foods maintaining balanced diet. The...

Vermicomposting is thought of as a clean, sustainable, and waste-free method of managing organic wastes, however, there are still several barriers to its widespread adoption. The practical use of vermicomposting requires greater attention than additional research in the sector. To successfully and globally address the issue of waste disposal, la...

The Indian economy is mainly dependent on agriculture, which contributes 21% of the country’s GDP and 60% of the employment. Rainfed agriculture occupies 67% of the net sown area, contributing 44% of food grains and supporting 40% of the population. In view of the growing demand for food grains in the country, there is a need to increase the produc...

Traditional rice transplanting is water, energy, labor, and capital-intensive, causing sustainability challenges like diminishing subsurface water table, soil health, and escalating greenhouse gas emissions that contribute to global warming. Labor shortages during transplanting occur due to agricultural workers moving to cities for better pay. Low...

Soils, especially specifically managed agricultural soils can be a large low-cost source of greenhouse gases (GHGs) with extra potential advantages to agricultural output. Most horticultural soil experts and agronomists feel that, most agricultural soils can store lot of carbon and even a slight increase in carbon stocks across large home-stead lan...

In the Indo-Gangetic Plains of South Asia, the predominant cropping system occupies 13.5 million hectares and consists of rice and wheat. Rice cultivation using the traditional puddle transplanted method requires a lot of water, capital, and energy. The structural integrity of the soil will deteriorate as a result of this system. Additionally, whea...

Soil alteration techniques popularly known as “Tillage” responsible for clean growing medium, eliminate unwanted plants, and reduce leaching and percolation losses to increase crop yields– long-term effects on soil characteristics, structure, and ultimately the ecosystem have been seen. Greenhouse gases are a problem because of agriculture. Zero ti...

Climate change, water scarcity, escalating food bills, population growth,and other social implications are probable to substantially endangeragricultural and global food security in the twenty-first century,particularly for the world's poorest residents who live in deserts andpartitions. Scientists and nutritionists are challenged by these effects...

Advantages, problems of Mechanical paddy transplanting

Global climate change, which is mainly caused by industrialized nations, has a negative impact on the agricultural production of poor and emerging countries, calling for mitigating strategies to reduce fertiliser inputs and greenhous gas emissions. Increasing carbon sequestration in soils can be done by reduced tillage and application of biochar an...

Climate change, water scarcity, escalating food bills, population growth, and other social implications are probable to substantially endanger agricultural and global food security in the twenty-first century, particularly for the world's poorest residents who live in deserts and partitions. Scientists and nutritionists are challenged by these effe...

In the Indo-Gangetic Plains of South Asia, the predominant cropping system occupies 13.5 million hectares and consists of rice and wheat. Rice cultivation using the traditional puddle transplanted method requires a lot of water, capital, and energy. The structural integrity of the soil will deteriorate as a result of this system. Additionally, whea...

Water footprints (WFs) in crop production are an ecological measurement of water utilization that represents the cumulative groundwater quantum consumed within a region (district/state or country) to produce the crops. WFs in crop production have great signifcance for ecosystem’s sustainability, as high WFs are posing a serious challenge for the sc...

Innovative farming practices in the traditional agriculture have significantly been progressed in last 1,000 years. Most of these aboriginal agricultural methodologies were not finely honed. Concurrent improvement of biochemistry and engineering, farming practices were also rapidly improved during the early forty years of the twentieth century. Aft...

crop production methods/techniques, planting methods, nutrient management techniques, insect-pest, and infection control alternatives including methods like cultural methods and physical methods, using of bio-agents, bio-pesticides, botanicals, light/pheromone, or combo traps, and so on can be a wise decision. Furthermore, maintaining its suitabili...

The aim of the study was to assess the pre-weaning kid mortality patterns and financial losses under family-based farming system. To achieve the objective, an ex-post facto study was designed with 300 randomly selected respondents from three agro-climatic situation of West Bengal. The studycovered 3,205 kidding with 6,642 kids born. The total prewe...

The study was undertaken to assess the perceived constraints in marketing of mango during normality and due to lockdown in West Bengal. In all, 90 respondents were randomly considered for the study with equal proportionate of small, medium and large farmers. The perceived constraints faced and suggestions in improving the marketing of mangoes were...

Agricultural production system, being one of the most important and dynamic sectors, significantly alleviate climate change, which directly or indirectly results in emissions of greenhouse gases (GHG’s). Several strategies and technological interventions have been made that have resulted in reducing greenhouse gas emission, but it should not by any...

A trial was directed at the Jaguli Instructional Farm of Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal to evaluate the heat indices of ten blackgram varieties during post-kharif season of 2018. Mean cultivar days from sowing to emergence, flower initiation, pod initiation and maturity of blackgram were found to be 4.93, 42.17, 57.57 and...

Both rice and wheat in the ‘rice-wheat systems’ (RWCs) of South-Asia and China, feed more than 3.1 billion people. It is the most productive and vital agricultural systems worldwide to meet the food safety of the growing population. Although, the RWCs have great concern for food security, however, one of the foremost complications in the systems is...

Throughout history, more than 5538 crop species have been used as food for human beings, whereas only 12 crop species share the major percentage of food security globally. Among these crop species, three kinds of cereal, such as rice, wheat and maize share >50% of calories across the globe. Besides these, more than 1000 neglected and underutilized...

A trial was directed at the Jaguli Instructional Farm of Bidhan Chandra KrishiViswavidyalaya, Nadia, West Bengal to evaluate the heat indices of ten blackgram varieties during post-kharif season of 2018. Mean cultivar days from sowing to emergence, flower initiation, pod initiation and maturity of blackgram were found to be 4.93, 42.17, 57.57 and 8...

Results Conclusions  Highest grain yield from field experiment was found under N 1 followed with continuous ponding (I 1) i.e. 6.83 tonnes/ha. However, simulated yield was observed highest under N 4 followed with I 1 level of irrigation (8.9 tonnes/ha).  Generally, the model was able to reproduce the observed yield components to quite a good exte...

Bihar being an agrarian state, agriculture contributes tremendously to it’s GDP growth. Under global changing climatic scenarios, the state is facing tremendous climate related challenges. Flood, drought is some of the major challenges for the farmers to cope up in order to enhance agricultural productivity under such natural resource constraints....

About the book Bihar being an agrarian state, agriculture contributes tremendously to it's GDP growth. Under global changing climatic scenarios the state is facing tremendous climate related challenges. ICT is relevant to protecting water quantity, water quality, enabling water predictions, water management. ICT can help in assessing water supply a...

The ‘‘rice-wheat cropping systems’’ (RWCS) of South Asia (SA) are amongst the maximum productive cropping systems in the world and it is most vital for the food security of the growing population. More recently, a makeable reduction in productivity of the RWCs system is showing due to the changing climate. Therefore, the declining tendencies of cer...

Biweekly block level Agromet bulletins were disseminated based on medium range weather forecast with an objective to assess the effectiveness and usefulness of Block level Agro Advisory Services (AAS) and quantify the economic benefits through adopting the micro scale agromet advisory in their day to day agricultural operations at Malda, West Benga...

The study was conducted to assess knowledge retaining ability of dairy farmers in Darjeeling district who had received on campus training from Darjeeling Krishi Vigyan Kendra on scientific dairy farming practices. The study was conducted on among 100 dairy farmers who had received on campus training during 2015-16 and 2016-17. For assessment of kno...

Malda KVK has started it activities on NICRA (National Innovations on Climate Resilient Agriculture) from 2010-11. Under Manikchak block, 6 villages were purposively selected for implementation of the NICRA project based on the effect of flood in the area. A study was undertaken to assess the impact of different climate resilient technologies based...

The study was undertaken with an objective to assess perceived constraints of mushroom grower in mushroom production enterprise. The study was purposively undertaken in flood prone Malda district of West Bengal due to gaining popularity of mushroom production enterprise among rural women and unemployed rural youth who were adopting this venture for...

As station data quality and availability is not adequate to reliably estimate observed climate change over many parts of the country, multi sources observational gridded datasets have been employed in the present study. The performances of multi-observational gridded datasets, e.g., IMD gridded data, CRU, APHRODITE, GPCC, NCAR/NCEP reanalysis have...

Climate Change has emerged as a serious global environmental concern in the recent decades. Global warming primarily caused by the accumulation of Green House Gases (GHGs) in the atmosphere has posed serious threat to crop and water productivity at global and regional scale. Global Warming effect particularly on developing countries is adverse as t...

Climate is one of the single most important factors affecting ecosystems and water resources (Mazumder and Molders, 2009). Both climate change and climate variability can lead to severe impacts on rainfed farming system through reducing its yields and profitability. It is desirable to have an idea about the change of some highly sensitive climatic...

Mesh covered pan evaporation at Bhagalpur was correlated with potential evapotranspiration (PET) computed by using empirical methods of FAO-Penmann Monteith (1998), Thornthwaite (1948), Papadakis (1965), Jensen and Haise (1963) and Modified Jenson and Haise (1975). Weather data for 4 years namely 2014-2017 for Bhagalpur was used to compute the pote...

The weather forecast and actual weather data received from India Meteorological Department, New Delhi were compared to verify the accuracy of rainfall forecast for the year 2016-17 at AMFU centre, Sabour, Bihar. It is apparent that the value of ratio score was higher than (88%) during Pre-monsoon (94%), Post-monsoon (91%) and winter season (89%). T...

A presentation presented at Tel Aviv University for summer Programme on Food safety and security

Most of the regions of North central regions of India are rainfed and the agricultural production depends significantly on the variability of seasonal as well as annual rainfall. Thus, under the context of climate change scenarios, it is necessary to assess the reliability of past rainfall change of multi sources observational data in order to unde...

National Conference held at Bihar Agriculture University

National Symposium held at Uttar Banga Krishi Viswavidalaya Regional Research Station.

Oral Presentation.

A field experiment was conducted to study the growth dynamics and productivity of spring maize under modified microenvironment during spring season of 2014. Three irrigation levels (1.25 (I1), 1.0 (I2) and 0.75 (I3) IW:CPE) and four manuring treatments (surface manuring (S), sub-surface manuring (DF), digging alone (D) and control (C) were evaluate...

An attempt was made to investigate how well did the ORYZA2000 model was able to reproduce yield components of rice variety IR 72. To evaluate the model performance, a field experiment was conducted at the farm of the Bidhan Chandra KrishiViswavidyalayain the new alluvial zone of west Bengal during the Boro season of the year 2013-'14. Firstly, an e...

The presenttion currently focuses on highlighting the implication of ORYZA2000 crop simulation Model and its Implication on Rice Studies.

Agricultural production systems are highly vulnerable to variations in climate, soil and topography of different regions. For sustainable agricultural management, all these factors need to be analysed on spatio-temporal basis. The advanced techniques like remote sensing, global positioning system and geographical information system can be of great...

A field experiment was conducted to assess the canopy temperature and heat use efficiency of maize (var. PMH-7) under modified soil micro environment during spring 2014 at the Research Farm, Punjab Agricultural University, Ludhiana. The experiment was laid out in factorial randomized block design comprising three irrigation levels (IW/CPE = 1.25 (I...

Long-term variability in potential evapotranspiration (PET) of spring maize during the period 1985-2014 was assessed for two agroclimatic regions i.e. Ludhiana representing central plain region and Ballowal Saunkhari representing sub-mountainous agroclimatic region of Punjab. PET of spring maize has been observed to increase over years at both the...

Credit Seminar

A detailed review paper on impact of Climate Change on Crop Water Productivity has been presented.