摘要
１９９１～１９９２年，在杨陵土娄土、平凉黑垆土旱地进行了耕作、施肥对小麦产量与水分利用率的研究。结果表明：减少夏闲期土壤水分的蒸发，是保蓄水分的有效措施；深耕或深松耕是提高土壤供蓄水分能力的途径；增加肥料投入是提高作物产量和提高农田水分利用率的关键措施。
In the years of 1991～1992, the effects of tillages and Fetilirations on the wheat yields, water use efficiency were stuclied for Ping liang Heilu soil and Yangling Lou soil. It is the aim of preserving soil water that reducing soil water evaporation in summer fallow. The effective way of preserving soil water is deep ploughing or deep-loose ploughing. The key measures of raising plant yields and field water use efficiency are to incvease fertilization.
