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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

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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 P. SHEORAN, SHER SINGH, S S BAWA, V SARDANA, ASHWANI KUMAR, RAJKUMAR, B BHUSHAN and G S DHERI
 
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 maintained
stable yield performance culminating in significantly higher system productivity, better resource use efficiencies and
sustainable 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.
 
Date 2017-06-16T04:22:52Z
2017-06-16T04:22:52Z
2016-01
 
Type Research Paper
 
Identifier Sheoran, P., Singh, S., Bawa, S. S., Sardana, V., Kumar, A., Rajkumar, Bhushan, B. and Dheri, G. S. (2016). 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. The Indian Journal of Agricultural Sciences, 86(1): 113-119.
http://krishi.icar.gov.in/jspui/handle/123456789/4330
 
Language English
 
Publisher ICAR