Residual fertility status
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To meet the increasing requirement of ever increasing population the judicious use of available natural resources with respect to its potential of supply of nutrient and elements is soil which vital natural resource.
7p trinhthamhodang11 27-04-2021 11 2 Download
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Residual effect of fertilizers applied and nitrogen fix by legumes can considerably bring down the production cost, if all the crops are considered when individual crops. In this context, cropping system approaches gaining importance.
9p caygaocaolon11 21-04-2021 7 1 Download
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Rice-wheat (Oryza sativa L.-Triticum aestivum L.) rotation is the major production system in Asia, covering about 18 million ha. Continuous and conventional RWC system practice has witnessed a significant slowdown in the yield growth rate. The sustainability of this important cropping system is at risk due to second-generation problems (low fertility status, multiple nutrient deficiencies, and imbalanced use of fertilizers, ground water depletion at faster rate, soil salinization, and inadequate system diversity).
14p nguaconbaynhay8 13-10-2020 16 1 Download
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Field experiments were conducted during 2010-12 at Regional Research Station, Virudhachalam to find out the residual effect of fly ash, farm yard manure and fertilizers applied to groundnut on growth parameters, nutrient uptake, yield of sesame and post-harvest soil available nutrients. The Neyveli Lignite Corporation fly ash contained higher amount of Ca, Mg, S and Si, moderate amount of P, K and B. Application of fly ash @ 40 t/ha significantly increased growth parameters, yield attributes, seed yield and harvest index of sesame.
7p quenchua8 29-09-2020 16 2 Download
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Soils in India are declining in fertility status due to higher usage of synthetic fertilizers and mono-cropping practices. To maintain the sustainability of soil and better crop production, it is essential to retain physical, chemical and biological properties of the soil through optimum level of organic matter. This article deals on the literature related to biochar, its production and characterization and its effect on soil application. The biochar application to the soil is a novel technique to improve soil fertility and thereby the soil productivity.
19p caygaocaolon6 30-07-2020 29 4 Download
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A field experiment was conducted at the Agronomy Farm, B. A. College of Agriculture, Anand Agricultural University, Anand during two consecutive Kharif and rabi seasons of the year 2015-16 and 2016-17 with a view to study the “Direct and residual effect of organic manures and inorganic fertilizers on maize (Zea mays L.)– chickpea (Cicer arietinum L.) cropping sequence”.
6p angicungduoc6 22-07-2020 10 1 Download
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A field experiment was conducted at Agricultural College Farm, Bapatla, during kharif 2015-16 to find out the response of transplanted rice under three levels of inorganic nitrogen in combination with organic manures viz., poultry manure, FYM and neemcake at 75, 100 and 125 per cent RDN. The highest yield components and yield of rice was recorded with application of 50 per cent N applied as inorganic and remaining 50 per cent through poultry manure @ 125 per cent RDN comparable with 125 per cent and 100 per cent N through only chemical fertilizers.
6p nguathienthan4 21-04-2020 9 1 Download
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Among all essential plant nutrients, potassium is the 3rd most likely, after nitrogen and phosphorus to limit plant productivity. The production and productivity of onion is very sensitive to potassium status in soil. Thus, it has become essential to replenish the reserve of potassium which are removed or lost from the soil.
12p chauchaungayxua4 18-03-2020 11 1 Download
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Greenhouse experiment was conducted to assess the soil biochemical change patterns in soils of arbuscular mycorrhizal fungus (AMF)-inoculated and uninoculated maize plants fertilized with varying levels of P and Zn. Soil samples were collected for mycorrhizal spores, microbial communities, available micronutrients and phosphorus (P) contents besides organic and biomass carbon (BMC), soil enzymes and glomalin. Major portion of Fe and Zn fractionations was found to occur in the residual form.
17p chauchaungayxua1 04-12-2019 31 0 Download