【摘要】 1981—1988年在渭北旱原合阳县甘井乡经过8年试验和调查研究,明确了肥力不足是旱地小麦低产的主要因素,以磷促根是调动旱地土壤深层水分的有效途径之一,并提出了夏季休闲、培肥地力、蓄水保墒、适时播种、合理耕作,选用良种以及防止青干等一系列农业综合增产技术措施,而培肥地力是其获得高产的关键。今后除搞好有机与无机肥料配合外,还应重视旱地微量元素及生物钾肥的试验与应用。更多还原

【Abstract】 Experiments and surveys were conducted in Ganjing Township of Heyang County onWeibei Rainfed Highland in the years of 1981-1989.It was made clear that the deficiency ofsoil fertility is the main constraint in low yield of winter wheat in rainfed land.Using phos-phat fertilizer to stimulate wheat root development is one of the effective ways to use soilmoisture in deep layer of rainfed land.Also,a technical package including summer fallow,bettering soil fertility,storing and conserving soil moisture,sowing in right time,rationalrotation and prevention of green dry of wheat were advanced in this paper,of which bet-terining soil fertility is the key link in obtaining high yield of wheat.Apart from doing a goodjob in matching organic fertilizer with inorganic ones,attention should be paid to tests andapplication of trace elements and bio-potassium fertilizer.更多还原