Ajay Singh

Chaudhary Charan Singh Haryana Agricultural University | CCS · Department of Agronomy

Weeds are the major biotic factor which reduces productivity of maize crop. Therefore, field trials were conducted during kharif seasons of 2015 and 2016, and rabi seasons of 2015–16 and 2016–17 with the hypothesis that combinations of tembotrione with different herbicides would provide effective weed control of complex weed flora with higher maize...

Nutrient budgeting for cropland is a crucial tool for assessing nutrient mining or excess application. We estimated the nutrient budget of nitrogen (N), phosphorus (P), and potassium (K) in cropland for South Asia during the last five decades (from 1970 to 2018) using equation-based empirical methods. Nutrient budget for the last five decades shows...

Improvements of soil organic carbon and reduction of carbon footprint are critical for the sustainability of agricultural production system. In a 14-year (2006–2020) field experiment, we assessed the effects of conser­vational (reduced/zero) tillage and residue management (incorporation/retention) (CsT+RM) practices on carbon input, carbon sequestr...

Agricultural management practices alter soil characteristics and influence soil biological properties. Hence, a field trial was carried out to assess the 14-year long-term impact of tillage and residue management practices on soil biological activities and microbial population in a rice-wheat cropping system in two depths viz., 0-15 and 15-30 cm. S...

Conventional rice–wheat system (RWCS) in the western Indo-Gangetic plain (IGP) of India is water and nitrogen intensive. Mini-sprinkler irrigation system (MSIS) is water and nitrogen efficient and helps in achieving higher nitrogen use efficiency (NUE). A comparative evaluation of MSIS versus surface irrigation system (SIS) was made to assess the N...

Climate change is the most severe problem of the 21st century. The ever-increasing concentration of greenhouse gases (GHGs) due to anthropogenic activities is accelerating the pace of climate change. Agriculture contributes to the three main GHGs namely carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) emissions through carbon and nitrog...

The conventional rice-wheat system in the western Indo-Gangetic plain of India is energy and water intensive with high carbon footprint. The transition towards resource-efficient eco-friendly production technologies with lower footprint is required for inclusive ecological sustenance. A five-year (2016–17 to 2020–21) field experiment was conducted...

Conventional rice-wheat cropping system (RWCS) in western Indo-Gangetic Plains (IGP) is carbon and energy intensive. A field experiment was conducted to evaluate energy budgeting, carbon footprints (CF) and greenhouse gas (GHG) emissions from RWCS under long-term tillage and residue management practices. Experiment consisted six treatment combinati...

The declining soil health in Indo-Gangetic plains due to intensive tillage practice and residue burning is threatening the sustainability of rice-wheat system (RWS) in this region. Zero tillage (ZT) and residue recycling (incorporation/ mulching) can improve soil health and sustainability of RWS. With this hypothesis an experiment was conducted at...

Conservation agriculture (CA)-based experiments were conducted at various locations in Indo-Gangetic Plains (IGP) of India in rice-based and other cropping systems. A triple ZT system at IARI, New Delhi, involving zero tillage DSR (ZTDSR) with green gram (GG) residue (GGR)-ZT wheat (ZTW)/ZT mustard (ZTM) with rice residue (RR)-ZTGG with wheat resid...

Conservation agriculture (CA)-based experiments were conducted at various locations in Indo-Gangetic Plains (IGP) of India in rice-based and other cropping systems. A triple ZT system at IARI, New Delhi, involving zero tillage DSR (ZTDSR) with green gram (GG) residue (GGR)-ZT wheat (ZTW)/ZT mustard (ZTM) with rice residue (RR)-ZTGG with wheat resid...

Rice (Oryza sativa L.)-wheat (Triticum aestivum L.) system (RWS) grown on 10 m ha in the Indo-Gangetic Plains (IGP), is essential for food security of India. In IGP soil sodicity is very common and reclamation with gypsum is very expensive, so adoption of salt tolerant varieties of rice and wheat could be a better option. A field experiment was, th...

Surface irrigation methods in puddle transplanted rice (PTR) requires a huge amount of irrigation water and leads to decline in water table in rice (Oryza sativa L.) growing areas of Indo-Gangetic Plains (IGP) of India. Mini sprinkler irrigation system with high water application efficiency in direct seeded rice (DSR) can save substantial amount of...

A field experiment was conducted to study the influence of imidazolinones alone and in combination on pigeon pea [Cajanus cajan (L.) Millsp] at CCS Haryana Agricultural University, Hisar, India during 2017-18 and 2018-19. The experiment was laid out in randomized block design using 18 treatment combinations replicated thrice. During both the years,...

Weeds are the major biotic constraints in maize crop due to its wider row spacing limiting its productivity. So, a field experiment was conducted during kharif and rabi seasons of 2015 and 2016, at RRS, Karnal, Haryana to study the effect of different weed control methods on weed flora, growth and yield of kharif planted maize, the residual effect...

All fresh horticultural crops are high in water content and are subject to desiccation (wilting, shriveling) and mechanical injury. They are also susceptible to attack by bacteria and fungi, with pathological breakdown. Biological (internal) causes of deterioration include respiration rate, ethylene production and action, rates of compositional cha...

The plant hormones or regulators are the organic chemical compounds, which modify or regulate physiological processes in an appreciable measure in the plant when used in small concentration. They are readily absorbed and move rapidly through the tissues, when applied to different plant parts. These chemicals are specific in their action. In other w...

A long-term field experiment (2006-2016) was laid out at Karnal, Haryana, to evaluate long-term effect of crop residue and tillage management on carbon sequestration potential, soil aggregates and wheat (Triticum aestivum L.) productivity under rice (Oryza sativa L.)-wheat cropping sequence on partially reclaimed sodic soil. Residue incorporation i...

Now a day, modern agriculture faces extreme pressure to sustain the productivity without degrading the environment. Weeds are important biotic factors which limits crop production and effective weed management is prerequisite for higher productivity. In India, herbicides are used extensively to control weeds which fastens the emergence of herbicide...

http://krishikosh.egranth.ac.in/handle/1/5810085507 The present investigation entitled “Evaluation of different herbicides on kharif maize and their residual effect on succeeding wheat crop” was studied at Regional Research Station, Karnal during kharif 2015 and 2016 and rabi 2015-16 and 2016-17 with the objectives, to find out the effect of differ...

In the Indo-Gangetic Plains (IGP) of India, rice (Oryza sativa L.) is taken by conventional tilled puddled transplanted (CT-PTR) method. CT-PTR requires a lot of water (2000-2500 mm) which comes mainly from groundwater. Due to declining water table and changing climate, the sustainability of CT-PTR rice is under immense pressure. The alternative to...

Tillage and crop residue management play an important role on soil physical and chemical properties and eventually affects the crop productivity. Crop residue is the material which usually not taken away but rather left in the field after the crop harvesting which include leaves, straw, stubble and roots stalks. Management of soil physical properti...

Direct seeded rice is an emerging production technology in India due to less requirement of water, labour and capital input initially. But direct seeded rice face severe infestation of weeds. A field experiment was conducted during the kharif 2012 at Students’ Farm of College of Agriculture, CCS Haryana Agricultural University; Kaul campus (Kaithal...