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Effect of site-specific nutrient management on yield, profit and apparent nutrient balance under pre-dominant cropping systems of Upper Gangetic Plains

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Title Effect of site-specific nutrient management on yield, profit and apparent nutrient balance under pre-dominant cropping systems of Upper Gangetic Plains
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Creator V K SINGH, A K SHUKLA, M P SINGH, K MAJUMDAR, R P MISHRA, MEENU RANI and S K SINGH
 
Subject Apparent nutrient balance, Economics, Nutrient harvest index, Output: input ratio, Site-specific nutrient management, System equivalent yield, Soil fertility
 
Description Not Available
A field experiment was conducted on a Typic Ustochrept soil at Project Directorate for Farming Systems Research
Modipuram (2904' N, 77046' E, 237m asl), for three consecutive years (2007-08 to 2009-10) to evaluate the sitespecific
nutrient management (SSNM) option against existing farmers fertilizer practices (FFP), state recommendation
(SR), improved SR (ISR) (i.e. 25% higher than SR), and soil testing laboratory recommendation (STLR) in six predominant
wheat based cropping systems of Upper Gangetic Plains, in terms of yield gain, economics, nutrient harvest
index, soil fertility, and apparent nutrient balances. SSNM improved system wheat equivalent yield over SR, ISR,
STLR and FFP by 19%, 8%, 17% and 29%, respectively. SSNM involved additional cost of ` 5 097 to 7 938 /ha over
SR and FFP under different cropping systems but it gave higher added net return of ` 13 649 to 58 776 /ha and
` 25 030 to 68 980 /ha over SR and FFP, respectively. The output: input ratio and nutrient harvest index were also
highest in SSNM. At the end of the experiment, soil available N, Olsen-P and available K content were either maintained
or improved over its initial values in SSNM treatments, whereas these parameters declined or marginally increased
over the initial contents under FFP and SR in 0-15 cm soil profile depth. After 03-crop cycles, apparent N and P
balances were positive in most of the cropping systems and fertilizer treatments, except a negative N balance was
noticed in pigeonpea [Cajanus cajan (L.) Millsp]–wheat (Triticum aestivum L.) and groundnut (Arachis hypogaea
L.)–wheat systems under SR and SSNM treatments. The apparent K balances were negative across all the cropping
systems and nutrient management options but the magnitude was lower under SSNM.
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Date 2018-12-03T09:30:27Z
2018-12-03T09:30:27Z
2015-01-01
 
Type Research Paper
 
Identifier V K SINGH, A K SHUKLA, M P SINGH, K MAJUMDAR, R P MISHRA, MEENU RANI and S K SINGH. 2015. Effect of site-specific nutrient management on yield, profit and apparent nutrient balance under pre-dominant cropping systems of Upper Gangetic Plains. Indian Journal of Agricultural Sciences. 85(3):335-43
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http://krishi.icar.gov.in/jspui/handle/123456789/15279
 
Language English
 
Relation Not Available;
 
Publisher ICAR