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Productivity and water use efficiency of aerobic rice under different moisture regimes in Eastern India

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Title Productivity and water use efficiency of aerobic rice under different moisture regimes in Eastern India
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Creator Kannan, K., Kundu, D.K., Singh, R., Thakur, A.K. and Chaudhari, S.K.
 
Subject Aerobic rice, Eastern India, Rice growth, Water management.
 
Description Not Available
A field experiment on aerobic rice culture was initiated at the Deras Farm, Mendhasal in Khurda district, Odisha during summer season (January to April) of 2007 and 2008 with the objective of identifying the suitable variety and irrigation regime for aerobic rice culture. Under aerobic condition, three rice varieities viz., Lalat, Surendra and Kandagiri were directly sown in the main field without puddling. All the varieties were also sown on the same day in nursery and transplanted 25 days after sowing. Irrigation treatment consisted of I1 -keeping soil moisture at 80–90% of available soil moisture (ASM) throughout the crop season, I2 -keeping soil moisture at 60–70% of ASM during vegetative and thereafter 80 90% and I3 -keeping soil moisture at 60–70% of ASM throughout the crop season and I4 -Conventional rice cultivation. Growth and yield characters were significantly influenced by establishment methods, irrigation regime and varieties. Initial plant growth characters like plant height, tiller number were higher under aerobic rice. However, as the season advanced, values of growth characters were higher under transplanted rice. Yield attributes viz., panicle numbers, grains per panicle were also higher under transplanted rice. Among irrigation regimes under aerobic culture, higher values of yield attributes were recorded in the treatment I1. Under aerobic rice root mass density was maximum under Kandagiri, which was followed by the variety Lalat. The highest yield (4.88 t ha−1) was recorded in the variety Surendra under transplanting method. In aerobic condition, the highest grain yield (3.98 t ha−1) and higher water use efficiency (46kg ha−1 cm−1) was recorded in the variety Surendra, irrigated at 80–90% soil moisture content (I1).
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Date 2018-11-24T08:59:28Z
2018-11-24T08:59:28Z
2015
 
Type Research Paper
 
Identifier Kannan, K., Kundu, D.K., Singh, R., Thakur, A.K. and Chaudhari, S.K. 2015. Productivity and water use efficiency of aerobic rice under different moisture regimes in Eastern India. Indian Journal of Soil Conservation, 43(2): 170-174
0976-1721
http://krishi.icar.gov.in/jspui/handle/123456789/13126
 
Language English
 
Relation Not Available;
 
Publisher Indian Associations of Soil & Water Conservationists