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Determination of time frame for substitution of salt tolerant varieties of rice (Oryza sativa) and wheat (Triticum aestivum) through crop diversification in sodic soils

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Title Determination of time frame for substitution of salt tolerant varieties of rice (Oryza sativa) and wheat (Triticum aestivum) through crop diversification in sodic soils
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Creator Y P SINGH1, RANBIR SINGH2 and D K SHARMA3
 
Subject Crop diversification, Energy use efficiency, Equivalent yield, Rice-wheat, Sodic soils, Time frame, Water use efficiency
 
Description Not Available
Field experiment was conducted during 2001 to 2005 at Central Soil Lucknow to determine the time frame for substitution of salt tolerant varieties of rice (Oryza sativa L.) and wheat (Triticum aestivum L. emend. Fiori & Paol.) through crop diversification. Under resource scare conditions, application of gypsum @ 25% gypsum requirement and growing salt tolerant varieties of ‘CSR 13’ rice for 4 years and wheat ‘KRL 19’ for 3 years was found optimum time for substitution of salt tolerant varieties through crop diversification. However, under resource rich conditions where gypsum is available to fulfill 50% gypsum requirement, crop diversification under sodic soils may be initiated after growing of
salt tolerant varieties of rice for 3 years and of wheat for 2 years. After 4 years of rice (Oryza sativa L.)– wheat (Triticum aestivum L. emend. Fiori & Paol.) cropping system, the pH2 of surface soil with 25 and 50% gypsum requirement levels reduced to 9.12 and 8.87 respectively or say the soil is partially reclaimed. There are certain highly remunerative
crops, like sweet basil (Ocimum basilicum L.), matricaria (Matricaria chamomilla L.), chilli (Capsicum spp.) and garlic (Allium sativum L.) which may grow at this sodicity level and gave high economic returns. On the basis of crop diversification study, rice equivalent yield (14.21 tonnes/ha) and production efficiency (61.25 kg/ha/day) was higher with sweet basil–matricaria cropping system over the traditional rice–wheat system. Chilli–garlic cropping system
recorded the highest water expense efficiency (150.72 kg/ha cm), followed by sweet basil–matricaria but the total
amount of water used was more (125.65 cm) in rice–wheat system. The water requirements of sweet basil–matricaria
and chilli–garlic cropping systems were 19.8 and 31.8% less than that of rice–wheat cropping system. Energy use efficiency of sweet basil–matricaria was higher (11.99) than that of the rice–wheat (11.43) cropping system. Highest benefit : cost ratio was recorded with sweet basil–matricaria (2.74), followed by chilli–garlic (2.42) cropping systems.
U.P.Council of Agricultural Research
 
Date 2018-09-20T08:49:44Z
2018-09-20T08:49:44Z
2010-10-06
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/7118
 
Language English
 
Relation Not Available;
 
Publisher Indian Council of Agricultural Research