Browsing by Author "Lokesh Kumar Jat"

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Does integrated nutrient management, enhance agricultural productivity?
(Journal of Pure and Applied Microbiology, 2015) Lokesh Kumar Jat; Y.V. Singh; Santosh Kumar Meena; Sunita Kumari Meena; Manoj Parihar; H.S. Jatav; Raj Kumar Meena; Vijay Singh Meena
Nowadays the global food demands of a growing human population and need for an eco-friendly strategy for sustainable soil-plant-microbes-environmental system, require significant attention when addressing the issue of enhancing agricultural productivity. One possible way to enhance crop productivity by chemical fertilization, but due to injudicious uses of chemical input in agricultural system detonated the soil, food, environmental and human health, chemical fertilization also increasing their prices 21st century. However, it is not possible to supply all the nutrient requirements of crops through organic manures. So by taking into consideration the above facts, integrated nutrient management (INM) has been developed. Here we discuss the role of INM in resolving these concerns, which has been proposed as a promising strategy for addressing these challenges. INM has multifaceted potential for the improvement of plant performance and resource efficiency while also enabling the protection of the environment and resource quality. Lower inputs of chemical fertilizer and therefore lower human and environmental costs (such as intensity of land use, N use, reactive N losses and GHG emissions) were achieved under advanced INM practices without any negative effect on crop yields. A comprehensive literature research revealed that INM increases crop yields by 8-150% as compared with conventional practices, increases water and nutrients use efficiency and the economic returns to farmers, while improving grain quality and soil health and sustainability. Strong and convincing evidence indicates that INM practice could be an innovative and environment friendly practice for sustainable agriculture worldwide. © 2015 Journal of Pure and Applied Microbiology. All rights reserved.
Effect of dates of sowing and fertilizer on growth and yield of wheat (Triticum aestivum) in an Inceptisol of Varanasi
(Indian Society of Agronomy, 2013) Lokesh Kumar Jat; S.K. Singh; A.M. Latare; R.S. Singh; C.B. Patel
A field experiment was conducted during the winter (rabi) season 2010–11 at Agricultural Research Farm, BHU, Varanasi, Uttar Pradesh, to study the effect of sowing dates and fertilizer levels on growth and yield of wheat [Triticum aestivum (L.) emend. Fiori & Paol.]. Sowing dates and fertilizer levels significantly affected the number of tillers, plant height, dry-matter accumulation, ear weight, ear length, grains/ear, 1,000-grain weight, grain and straw yield. Grain yield decreased with delay in the sowing dates. Maximum grain yield (3.66 t/ha) was recorded when the crop was sown on 20 November and the minimum (3.17 t/ha) when sown on 23 December. © 2013, Indian Society of Agronomy. All rights reserved.
Rhizosphere microorganisms towards soil sustainability and nutrient acquisition
(Springer Singapore, 2017) Mahendra Prasad; Manoj Chaudhary; Mukesh Choudhary; T. Kiran Kumar; Lokesh Kumar Jat
The importance of soils and its function is conclusive; the soil is a living entity that needs to be improved under sustainable approach. It is apparent that soil biota contributes substantially to effective soil functioning and maintenance of soil sustainability. The increase of food production to meet out the food security demand of an ever-increasing population has been highly dependent on integrated nutrient management input but ignores the potential of bioagents. The significance of rhizosphere microorganism can be enormous as they are able in managing nutrient transformation, nutrient acquisition and use, and thus crop sustainability. The soil sustainability and nutrient use efficiency (NUE) can be enhanced by modification of rhizosphere through the best management approaches such as agronomic practices, nutrient management, use of organic and biofertilizers, and regulation of rhizosphere processes. © 2017, Springer Nature Singapore Pte Ltd.
Soil maturity assessment in indo-gangetic alluvium of bihar using soil inorganic phosphorus fractions based weathering index: A comparative approach
(IndianJournals.com, 2016) Prerna Roy; Y.V. Singh; Lokesh Kumar Jat
Different forms of inorganic soil phosphorus (P) were characterized in relation to soil properties in four pedons belonging to order Inceptisols occurring in sub-tropical agro-climatic zone III of Bihar, falling under Indo-Gangetic alluvium region of Patna district. The soil of the Indo-Gangetic alluvium are clay loam to clayey in texture, neutral to alkaline in reaction (pH 7.3-8.0) having high electrical conductivity (EC) i.e. high amount of soluble salts in soil solution. The available P content in soils of the region was low to medium range (4.13 – 13.6 mg kg-1). The organic carbon (OC) content of the region was medium (0.20 -0.65%). Based upon weighted mean (PWM) values maximum amount of P is in the form of calcium-P (Ca-P) [38.8 mg kg-1] while minimum amount of P is in the form of iron P (Fe-P) [5.16 mg kg-1] contributing 50.4 and 6.7% of total inorganic P content, respectively. The sequential extraction of inorganic soil P fractions reveal that the mean relative abundance follow the order: Ca-P (50.4) > Saloid-P (14.3%) > Occluded-P (11.8%) > Reductant-P (9.4%) > Al-P (8.2%) > Fe-P (6.7%). The PWM total P content suggested that the soils are fairly rich in P reserve ranging from 129.3 – 371.1 mg kg-1 with overall mean of 138.7 mg kg-1. The available P showed positive significant correlation with Fe-P (r = 0.58**), Ca-P (r = 0.58**) and total-P in the soil profile indicating their contribution in P availability in the area. The total P showed positive significant correlation with Al-P (r = 0.74**), Ca-P (r = 0.63**), and organic-P (r = 0.74**), indicating their dominance in contribution of P pool of the area. Maturity sequence derived from weathering index (WI) based upon inorganic soil P fractions is: P1 (most matured) > P2 > P4 > P3 (least matured). Hence, pedon-1 was found to be most matured while pedon-3 was least matured is good agreement with that obtained from soil classification indicating a close relationship between the former and the later. This study emphasized that the active form of P converts into saturated P-fractions in the soil leading to the increase in the availability of various P forms on addition of proper P-fertilizer. The inorganic soil P based weathering index is proved to be a very suitable and extremely useful index for predicting soil maturity of this region. © 2016, IndianJournals.com. All rights reserved.
Zinc Solubilization and Mobilization: A Promising Approach for Cereals Biofortification
(Springer, 2020) Hanuman Singh Jatav; Satish Kumar Singh; Mahendru Kumar Gautam; Mujahid Khan; Sunil Kumar; Vishnu D. Rajput; Mudasser Ahmed Khan; Lokesh Kumar Jat; Manoj Parihar; Champa Lal Khatik; Gaurav Kumar Jatav; Surendra Singh Jatav; Kailash Chandra; Hanuman Prasad Parewa
Plants are an important component of the ecosystem and vital for survival of human beings. As human beings need nutrition for their proper growth and development, plants also require different nutrients to complete their life cycle. Among the all essential nutrients, zinc is one of the important nutrients required not only by plants but also by human beings. Several researchers have reported the decline in zinc level of Indian soils. An approx. 47–49% of Indian soils are facing zinc deficiency, which is continuously rising up. The deficient soils are not able to supply the crop the required amount of nutrients, since soils with zinc deficiency are unable to provide an adequate amount of nutrients. The cereal crop like rice is prone to face zinc deficiency worldwide. Keeping in view such global crop issues, a greater attention is required to fulfil the zinc requirement of crop by different agronomic and plant breeding approaches. Zinc biofortification becomes one of the promising strategies to supply zinc in the crop at an optimum level. Zinc solubilization and mobilization are one of the suitable strategies to overcome zinc-deficiency issues. The chapter has emphasized on mechanism of biofortification and its challenges and limitations for adoption at ground level. © Springer Nature Singapore Pte Ltd. 2020.