Soil water retention-transmission studies and enhancing water-use-efficiency of winter crops through soil surface modifications.

Book Title: NA
Year Published: 2004
Month Published: NA
Author: Gouranga, Kar ; Ravender, Singh
Book Group Author: NA

Soil water retention-transmission properties were studied and empirical relationships were established for determining soil water diffusivity, unsaturated hydraulic conductivity and matric potential based on water retention-transmission properties. Soil surface modification experiments were conducted during rabi 1999-2000 and 2000-2001 in Bharatkata village of Dhenkanal, Orissa, India. Results of mulching on water use efficiency (WUE), crop growth and yield revealed that biomass, leaf area index, WUE, and grain yield were increased due to application of straw mulches. It was found that 6-16, 19-28, 12-30, 28-36, and 15.3-38.5% aboveground biomass production were enhanced in black gram (Vigna mungo cv. T9), gram (Cicer arietinum cv. Pragati), pea (cv. Rachna), lathyrus (cv. Nirmal) and safflower (cv. Bhima), respectively, when straw mulch was applied to crops over non-mulching. With straw mulching 51.7-61.5, 53.8-62.7, 61.5-61.8, 53.1-56.3 and 58.4-58.7% field water-use-efficiency was enhanced in black gram, gram, pea, lathyrus and safflower, respectively, over non-mulching.

Pages: 18 - 23
Volume: 32
Number: 1
Journal: Indian Journal of Soil Conservation
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 0970-3349

biomass, biomass production, black gram, chickpeas, cropyield, diffusivity, green gram, growth, hydraulic transmissions, leafarea index, leaves, matric potential, mulching, peas, plant waterrelations, safflower, saturated hydraulic conductivity, soil watercontent, soil water movement, soil water retention, straw mulches,unsaturated hydraulic conductivity, water use, water use efficiency,India, Orissa, Carthamus tinctorius, Cicer arietinum, Lathyrus, Pisumsativum, Vigna mungo, Vigna radiata, Carthamus, Asteraceae, Asterales,dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes, Cicer,Papilionoideae, Fabaceae, Fabales, Pisum, Vigna, South Asia, Asia,Developing Countries, Commonwealth of Nations, India, LAI, mung bean,pea, Field Crops (FF005) (New March 2000), Plant Physiology andBiochemistry (FF060), Plant Water Relations (FF062), Plant Production(FF100), Soil Physics (JJ300), Soil Management (JJ900), Plant Wastes(XX200)

Source: EBSCO
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