?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Foar.icrisat.org%2F3686%2F&rft.title=Spatial+and+Temporal+Distribution+of+Soil+Water+Availability+in+the+Indo-Gangetic+Plains+of+India%2C+Bangladesh%2C+Pakistan%2C+and+in+Sri+Lanka%3A+Natural+Resource+Management+Program+Report+No.+3%0D%0A%0D%0A%0D%0A&rft.creator=Chauhan%2C+Y+S&rft.creator=Bantilan%2C+F+T&rft.creator=Padmaja%2C+R&rft.creator=Irshad+Ahmed%2C+M&rft.creator=Moinuddin%2C+M&rft.creator=Rahman%2C+M+M&rft.creator=Haqqani%2C+A+M&rft.creator=Nizamuddin%2C+M+S&rft.creator=Johansen%2C+C&rft.subject=Food+Legumes&rft.subject=Agriculture-Farming%2C+Production%2C+Technology%2C+Economics&rft.description=Cultivation+of+legumes%2C+which+used+to+be+an+important+component+of+the+cropping+systems+in+South+Asia%2C+has+been+ignored+by+farmers+growing%0D%0Arice+and%2For+wheat+crops%2C+or+relegated+to+marginal+lands+in+recent+years.+This+bulletin+contends+that+greater+cultivation+of+legumes+for+grain%2C%0D%0Aforage+or+as+green+manure+in+rice+and+wheat+systems+can+help+maintain+sustainability+of+these+systems+and+achieve+a+required+level+of+crop%0D%0Adiversification.+As+legumes+are+normally+grown+rainfed%2C+soil+water+availability+will+be+a+major+determinant+of+their+success+or+otherwise.+This%0D%0Abulletin+presents+temporal+and+spatial+soil+water+availability+scenarios+in+order+to+assess+the+scope+for+greater+inclusion+of+legumes+in+the%0D%0Apredominantly+rice+or+wheat-based+cropping+systems+of+the+Indo-Gangetic+Plains+of+India%2C+Bangladesh%2C+and+Pakistan+and+for+rice-based%0D%0Acropping+systems+in+Sri+Lanka.+This+has+been+achieved+through+the+application+of+a+water+balance+model+%E2%80%98WATBAL%E2%80%99+and+making+use+of%0D%0Ageographic+information+systems+(GIS)+to+display+and+analyze+month-wise+maps+of+various+indices+of+soil+water+availability%2C+and+determine%0D%0Alength+of+growing+season.+The+scenarios+indicate+considerable+spatial+and+temporal+variability+with+respect+to+rainfall+and+moisture+indices%0D%0Avarying+from+more+favorable+to+less+favorable.+The+water+availability+scenarios+presented+in+this+bulletin+are+generic+in+nature+and+can+also+be%0D%0Aused+to+assess+other+rainfed+crops+besides+legumes+and+refine+irrigation+scheduling+for+irrigated+crops.+These+scenarios+are+based+on+monthly%0D%0Ainput+of+climatic+data+and+therefore+could+be+improved+further+using+daily+or+weekly+climatic+data+for+the+target+regions.%0D%0A&rft.publisher=International+Crops+Research+Institute+for+the+Semi-Arid+Tropics+&rft.date=2001&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Foar.icrisat.org%2F3686%2F1%2F481-2001.pdf&rft.identifier=++Chauhan%2C+Y+S+and+Bantilan%2C+F+T+and+Padmaja%2C+R+and+Irshad+Ahmed%2C+M+and+Moinuddin%2C+M+and+Rahman%2C+M+M+and+Haqqani%2C+A+M+and+Nizamuddin%2C+M+S+and+Johansen%2C+C++(2001)+Spatial+and+Temporal+Distribution+of+Soil+Water+Availability+in+the+Indo-Gangetic+Plains+of+India%2C+Bangladesh%2C+Pakistan%2C+and+in+Sri+Lanka%3A+Natural+Resource+Management+Program+Report+No.+3.++Monograph.+International+Crops+Research+Institute+for+the+Semi-Arid+Tropics+%2C+Patancheru%2C+Andhra+Pradesh%2C+India.+++++