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Impact of crop and nutrient management on crop growth and yield, nutrient uptake and content in rice

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Title Impact of crop and nutrient management on crop growth and yield, nutrient uptake and content in rice
Not Available
 
Creator Amod K. Thakur · Krishna G. Mandal · Sachidulal Raychaudhuri
 
Subject Bio-fortification · Conventional management practices · Micronutrients · Oryza sativa · System of rice intensification (SRI)
 
Description Journal article
System of rice intensification (SRI) together with appropriate nutrient management holds promise in increasing rice productivity
with micronutrient enriched grains. Trials were conducted to investigate the performance of SRI vis-à-vis conventional
management practices (CMP), both with either integrated nutrient management (INM) or organic sources of nutrients. Grain
yields were consistently higher under SRI (34.6%) than with CMP under the same nutrient management system. At the
same time, yields under INM were higher than for those with organic fertilization. There were significant differences among
treatment combinations also; both SRI–INM and SRI–organic out-yielded CMP–INM and CMP–organic, respectively, by
43.8 and 24.8%. Further, SRI with organic sources produced 18.6% higher grain yield than CMP with INM, which showed
a way to achieve higher output of rice grain grown organically. Significant improvements were observed with SRI in root
growth, xylem exudation rate, LAI, canopy light interception, SPAD chlorophyll level, photosynthesis rate, and grain-filling
rate. The improvements in physiological functioning evidently contributed to better grain formation and yield under SRI
management. Both the rice grains and straw obtained with SRI methods contained more N, P, K, Fe, Mn, Cu, and Zn than
grains and straw produced with CMP. SRI methods not only raised rice productivity, but also enhanced nutrient uptake due
to greater root growth and activity, and improved the nutritional content and quality of produced grain.
Not Available
 
Date 2021-07-20T04:48:07Z
2021-07-20T04:48:07Z
2019-08-03
 
Type Article
 
Identifier Not Available
16112490, 16112504
http://krishi.icar.gov.in/jspui/handle/123456789/48976
 
Language English
 
Relation Not Available;
 
Publisher Springer Verlag, Germany