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Assessing long term impact of nutrient management and rainfall variability on the agroecological resilience of maize (Zea mays)- wheat (Triticum aestivum) system in NW India

Indian Agricultural Research Journals

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Title Assessing long term impact of nutrient management and rainfall variability on the agroecological resilience of maize (Zea mays)- wheat (Triticum aestivum) system in NW India
 
Creator SHEORAN, P
SINGH, SHER
BAWA, S S
SARDANA, V
KUMAR, ASHWANI
RAJKUMAR, RAJKUMAR
BHUSHAN, B
DHERI, G S
 
Subject Maize-wheat, Nitrogen, Prediction model, Rainfall, Sustainability
 
Description A long-term (2000-2010) field experiment was carried out in the lower Shiwalik foothills of Punjab to study the carry over effect of organic manures and fertilizers on the productivity of maize (Zea mays L.)- wheat (Triticum aestivum L.) cropping system for efficient N management and resource use under rainfed conditions and to develop predictive models describing relationship between yields and seasonal rainfall. N management strategies involving combined application of 15 kg N/ha either through compost or leucaena loppings along with 20 kg N/ha through inorganic fertilizer for maize-wheat cropping sequence utilized growth resources most efficiently and maintainedstable yield performance culminating in significantly higher system productivity, better resource use efficiencies andsustainable yield index, suggesting partial N substitution through compost or locally available plant material. The regression models developed to predict the effects of N sources on crop yields using monthly rainfall would be of interest to estimate the yield at a given level of rainfall with the likely fluctuation (as error) particularly under rainfed conditions.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2016-01-22
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/55246
 
Source The Indian Journal of Agricultural Sciences; Vol 86, No 1 (2016)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/55246/23227
 
Rights Copyright (c) 2016 The Indian Journal of Agricultural Sciences