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Studies on scented rice based cropping systems under different mode of nutrient management

KrishiKosh

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Title Studies on scented rice based cropping systems under different mode of nutrient management
 
Creator Singh, Rajnish
 
Contributor Subhash Chandra
 
Subject improved varieties, rice, cropping systems, nutrients, soil health
 
Description Thesis-PhD
Field experiment were conducted at Breeder Seed Production Centre of G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during 2006-07 and 2007-08 on scented rice-based cropping system under different mode of nutrient management. The experiment was laid in strip plot design with three main strip treatments (organic, inorganic and integrated mode of nutrient management) and four cropping system treatments (Basmati rice-wheat, Basmati rice-lentil, Basmati rice-vegetable pea and Basmati rice-Brassica napus) with three replications. The plant height of basmati rice was higher with inorganic NM in 2006-07 and with INM in 2007-08. Among cropping systems it was higher after lentil in 2006-07 and significantly higher after wheat in 2007-08. The Number of shoots at 90 DAT was recorded significantly higher with INM and among the cropping system treatments; it was significantly higher after lentil during both the years. Inorganic NM recorded the maximum dry matter at all the growth stages as well as at harvest. At harvest, dry matter was the maximum after vegetable pea during both the years. The yield attributes viz., panicles/m2, panicle length, spikelets/panicle and harvest index of rice were higher with inorganic NM in 2006-07 and with organic NM in 2007-08. The grain weight/panicle and 1000-grain weight was higher with inorganic NM during both years of study. Among the cropping systems, the panicles/m2 was higher after lentil and after vegetable pea; spikelets/panicle was higher after vegetable pea and after lentil in 2006-07 and 2007-08, respectively. 1000-grain weight was also higher after lentil during both the years. The grain yield of basmati rice was significantly higher with inorganic NM (35.48 q/ha) in 2006-07 did not vary due to NM practices in 2007-08. The straw and biological yields were higher with inorganic NM during both years. Among cropping systems higher grain yield was recorded after lentil during both the years. The straw yield as well as biological yield was higher after
vegetable pea in 2006-07 and after lentil in 2007-08. The growth, yield attributes and yield of all the rabi crops improved with inorganic NM during both the years, except grains per pod of lentil and per siliqua of B. napus, where it was higher with INM during both the years and pod length and 100-grain weight of vegetable pea was higher with INM in 2006-07. The nutrient uptake (N, P, K and S) by the whole cropping system was significantly higher with inorganic NM during both years. Basmati rice-wheat system recorded significantly higher N and K uptake during both the years and S uptake in 2006-07 only. The P uptake was significantly higher by basmati rice-lentil cropping system during both the years. Basmati rice- B. napus recorded significantly higher S uptake in 2007-08. The B: C ratio of basmati rice was significantly higher with inorganic NM in 2006-07 and with organic NM in 2007-08. The basmati rice after lentil recorded higher B: C ratio among different cropping systems. Rabi crops recorded significantly higher B: C ratio with inorganic NM. Among rabi crops wheat and lentil produced significantly higher B: C ratio in 2006-07 and 2007-08, respectively. The B: C ratio for whole cropping system was significantly higher with inorganic NM in 2006-07 and with organic NM in 2007-08. Basmati rice-lentil recorded significantly higher B: C ratio among different cropping systems during both years. Organic NM recorded higher soil organic carbon at harvest of rice as well as rabi crops, whereas, available nitrogen, phosphorus and potash were the maximum with INM barring available potassium after rabi crops, where it was higher with organic NM. The available sulphur was higher with inorganic NM during both the seasons. In a system mode, the basmati rice-lentil cropping system recorded higher organic carbon and available nutrient, barring available sulphur at harvest of rabi crop in 2006-07, where it was higher with vegetable pea. The basmati rice performed well under organic NM, with improved response during second year. The rabi crop responded better to inorganic NM practice. Basmati rice-lentil cropping system exhibited its superiority in terms of benefit: cost ratio and soil health.
 
Date 2016-09-09T15:04:17Z
2016-09-09T15:04:17Z
2010-01
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/76279
 
Language en
 
Format application/pdf
 
Publisher G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)