【摘要】 该文应用土壤水分平衡法对渭北东部旱地小麦耗水规律进行了探讨。得出小麦全生育期耗水量２９１．５～３６５．９ｍｍ，水分平均满足率为６４．９％；通过统计分析建立了小麦产量与农田蒸散量的数学模型。提出蓄水保墒、培肥地力、应用抗旱制剂等旱作农艺措施。更多还原

【Abstract】 The consumption law of soil moisture in wheat fields in the eastern part of Weibei rainfed highland was analyzed by using the farmland water balance method.The results show that the actual water consumption by wheat was 291.5～365.9mm,the rate of average moisture to meet wheat requirement was 64.9%。Amathematical model for wheat yields and farmland evapotranspiration is established through the statistics analysis. The agronomicmeasures such as accumulating and conservation moisture techniques,soil fertility anddrought-proof chemicals are put forward.更多还原