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针对临夏高寒阴湿地区土壤肥料用量不足、氮磷比例失调、气温低、热量不足、土壤犁地层等影响粮食产量提高的问题,开展了试验研究,结果表明:耕深27 cm 和20 cm 处理比14 cm 处理,小麦增产319.5 kg/hm~2和240.0 kg/hm~2。蚕豆增产621.0 kg/hm~2和396.0 kg/hm~2;在施有机肥67 500 kg/hm~2条件下,氮磷总量以51kg/hm~2为宜;各作物适宜的氮磷比例是;小麦1:1～1.5.蚕豆1:2,马铃薯2:1;地膜覆盖栽培增产幅度为:小麦52.3%,蚕豆36.5%.玉米74.4%。
Aiming at the problem of insufficient soil fertilizers, imbalance of nitrogen and phosphorus, low temperature, lack of heat and soil plow formation in the Linxia alpine and humid areas, the experimental study was carried out. The results showed that the treatments 27 and 20 cm 14 cm, and the yield of wheat increased 319.5 kg / hm ~ 2 and 240.0 kg / hm ~ 2. The yield of broad bean was increased by 621.0 kg / hm ~ 2 and 396.0 kg / hm ~ 2. Under the condition of 67 500 kg / hm ~ 2 organic fertilizer, the total amount of nitrogen and phosphorus was 51 kg / hm ~ Wheat 1: 1-1.5, broad bean 1: 2 and potato 2: 1. The coverage of plastic film mulching cultivation was 52.3% for wheat, 36.5% for broad beans and 74.4% for maize.