Abstract
About 20% of the area is irrigated and about 35% dry farmed using a fallow period of stubble to prevent wind erosion and hold snow in place in winter. In about 30 trials on farmers' fields during 1966-68, the contribution of moisture stored during the fallow year to the transpiration of a following wheat crop was 45 and 65%, indicating the indispensability of the fallow period. A tentative scheme for the area recommends the following: with an annual precipitation of 450mm precipitation, permanent cultivation, with N dressings replacing the fallow year.[281:132.2]. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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