|Author:||Saha, R. ; Ghosh, P. K. ; Anup, Das|
|Book Group Author:||NA|
A field experiment was conducted during 2006-08 to assess the effects of in-situ residue management and tillage on water-use efficiency, evapo-transpiration and yield of mustard (Brassica campestris) under hilly ecosystem of Meghalaya, India. Various residue management combinations with locally available resources were tested under conservation and conventional tillage. Results showed that irrespective of tillage and residue management, moisture-extraction pattern was maximum (38.7 to 58.8%) up to 0-30 cm soil depth with maize (Zea mays) stalk cover as well as with other organic sources of nutrient and decreased with soil depth. The treatment with maize stalk cover+farmyard manure @ 10 tonnes/ha contributed almost 78 and 75% higher evapo-transpiration than that under control in conservation and conventional tillage practices, respectively. All the residue management practices recorded higher seed yield of mustard (ranges between 194.9 and 459.6 kg/ha) than control (45.4 kg/ha). The highest water-use efficiency (14.59 kg/ha-mm) was observed under maize stalk cover+poultry manure @ 5 tonnes/ha+Ambrosia sp. @ 5 tonnes/ha, irrespective of tillage practices. The study indicated that the integrated supply of maize stalk cover, poultry manure and Ambrosia sp. @ 5 tonnes/ha each contributed most favourable soil moisture for support of double cropping with high yield in hill eco-system of northeast India.
|Pages:||340 - 345|
|Journal:||Indian Journal of Agricultural Sciences|
conservation tillage, crop residues, crop yield, croppingsystems, evapotranspiration, maize, plant water relations, seeds, soildepth, soil water, soil water balance, tillage, water use efficiency,India, Meghalaya, Brassica campestris, Zea mays, Brassica, Brassicaceae,Capparidales, dicotyledons, angiosperms, Spermatophyta, plants,eukaryotes, South Asia, Asia, Developing Countries, Commonwealth ofNations, India, Zea, Poaceae, Cyperales, monocotyledons, Capparales,corn, soil cultivation, soil moisture, Field Crops (FF005) (New March2000), Plant Production (FF100), Plant Cropping Systems (FF150), PlantWater Relations (FF062), Soil Physics (JJ300), Soil Management (JJ900)