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Analyzing rainfall effects for sustainable rainfed maize productivity in foothills of Northwest Himalayas

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Title Analyzing rainfall effects for sustainable rainfed maize productivity in foothills of Northwest Himalayas
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Creator Anil Sharma
G.R. Maruthi Sankar,
Sanjay Arora,
Vikas Gupta,
Brinder Singh
Jai Kumar,
P.K. Mishra
 
Subject Monthly rainfall Rain water use efficiency Sustainability yield index Relative production efficiency index Cost-benefit ratio Prediction error
 
Description Not Available
The study aimed to establish relationships between sustainable crop yields, production efficiency and
rainwater utilization in rainfed foothill region of Northwest Himalayas. In this investigation field experiments
were conducted for eleven years, during 1998–2008, to assess the performance of nitrogen
through different organic and inorganic sources in maize and black gram. The assessment based on
statistical models indicated that 100% N through urea (T2 treatment) was highly efficient with a significantly
higher rain water use efficiency (RWUE) as well as sustainability yield index (SYI) under
sole maize (RWUE = 4.01 kg/ha/mm; SYI = 59.6%) and maize + black gram system (RWUE = 2.65 kg/ha/mm;
SYI = 48.2%), while treatment T8 (15 kg N through Leucaena + 20 kg/ha N through urea) was superior to
all the other treatments with RWUE of 1.74 kg/ha/mm and SYI of 42.1% under sole black gram system.
SYI in all the three blocks had a positive association with RWUE. On evaluating the relative production
efficiency index (RPEI), it was observed that RPEI of maize crop increased in all the treatments when compared
to initial RPEI i.e., during the start of the experiment (year 1998). The percent increase in maize
yield over control also followed the percent increase in RPEI. A positive relationship of SYI and RWUE
was also observed with RPEI in maize crop
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Date 2020-03-05T08:46:23Z
2020-03-05T08:46:23Z
2013-02-22
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/33614
 
Language English
 
Relation Not Available;
 
Publisher Not Available