Effect of phasic drought on the yield, water use and moisture extraction pattern of hybrid grain sorghum in Marwar tract of Rajasthan

Singh, A. (1977) Effect of phasic drought on the yield, water use and moisture extraction pattern of hybrid grain sorghum in Marwar tract of Rajasthan. Annals of Arid Zone, 16 (2). pp. 231-239.

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Abstract

In the Marwar tract of Rajasthan, sorghum hybrid CSH-1 given 1 irrigation at the seedling, knee-high, heading or milk-ripe stage in the wet yr of 1973 (rainfall 970 mm) gave grain yields of 4.11-4.48 t/ha, compared with 3.89-4.35 t with 2-5 irrigations and 3.05 t without irrigation. In the drought yr of 1974 (rainfall 125 mm), increasing the number of irrigations from 1 to 5 increased yields from 0.18 to 2.25 t/ha, compared with 0.18 t without irrigation; the seedling and milk-ripe stages were the critical ones for irrigation. In 1974, irrigated crops extracted water mainly from the top 0-15 and 15-30 cm soil layers, while the rain-fed crop extracted water from 45-cm soil depth

Item Type: Article
Author Affiliation: Central Arid Zone Research Institute, Jodhpur 342 003, Rajasthan, India
Subjects: Plant Production
Soil Science and Microbiology > Soil Sciences
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 29 Jan 2013 06:15
Last Modified: 29 Jan 2013 06:15
URI: http://eprints.icrisat.ac.in/id/eprint/9419

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