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Water Use and Soil Fertility under Rice–Wheat Cropping System in Response to Green Manuring and Zinc Nutrition

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Title Water Use and Soil Fertility under Rice–Wheat Cropping System in Response to Green Manuring and Zinc Nutrition
Not Available
 
Creator Devideen Yadav
Y. S. Shivay
Y. V. Singh
V. K. Sharma
Arti Bhatia
 
Subject In-situ and ex-situ green manuring; rice; soil fertility; water productivity; zinc fertilization
 
Description Not Available
Soil fertility and water use are two important aspects that influence rice productivity.
This study was conducted to evaluate the performance of in-situ (sesbania
and rice bean) and ex-situ (subabul) green manuring along with zinc fertilization
on water productivity and soil fertility in rice under rice–wheat cropping system
at Indian Agricultural Research Institute, NewDelhi, India. Sesbania incorporation
recorded higher total water productivity (2.20 and 3.24 kg ha−1 mm−1), available
soil nutrients, organic carbon, alkaline phosphatase activity, microbial biomass
carbon and increased soil dehydrogenase activity by 39.6 and 26.8% over
subabul and rice bean respectively. Among interaction of green manures and
zinc fertilization, subabul × foliar application of chelated zincethylenediaminetetraacetic
acid at 20, 40, 60 and 80 days after transplanting
recorded highest total water productivity (2.56 and 3.79 kg ha−1 mm−1). Foliar
application of chelated Zn-EDTA at 20, 40, 60 and 80 days after transplanting
recorded significantly higher water productivity than other Zn treatments, however
it was statistically similar with foliar application of zinc at active tillering +
flowering + grain filling. Sesbania × 5 kg Zn ha−1 through chelated Zn-EDTA,
recorded highest available nitrogen, phosphorus, potassium, zinc, manganese,
copper and iron than other green manure and Zn fertilization interactions,
although it was statistically similar with rice bean × 5 kg Zn ha−1 through
chelated Zn-EDTA as soil application. Sesbania × foliar application of
5 kg Zn ha−1 through chelated Zn-EDTA as soil application recorded highest
soil enzymatic activities and microbial biomass carbon.
Not Available
 
Date 2020-07-23T08:07:19Z
2020-07-23T08:07:19Z
2019-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/38245
 
Language English
 
Relation Not Available;
 
Publisher Not Available