摘要
河北省黑龙港地区淡水资源短缺,是农业生产发展的制约因素。南皮试区(1980～1991)咸水灌溉的研究结果表明,利用2～5g/l的咸水灌溉,小麦、玉米两季亩产达到484.8～622.8kg,比不灌的旱作增产1.06～1.65倍;在汛期集中降雨淋洗的条件下,根层土壤不积盐;实行咸淡水轮灌、混灌,改善水质,增辟水源,获得作物丰产。
In Heilonggang region in Hebei province, the fact of shorting of fresh water res-ource is one of the restraintion in developing the agriculture. The result of study by irrigating saline water in Nanpi pilot (1980-1991) shows that the yields of successive cropping of wheat and corn were 484.8-622.8 kg/mu, yield increased 1.06-1.65 times than that of non-irrigated; In the condition of concentrated rainfall in rainy season, the soil desalinized in root zone, the salt accumulation due to saline water irrigation can be leached; By irrigating with saline water and fresh water alternatively or mixture water, the water quality may be improved and the irrigated farm land may be enlarged and high production of crops may by achieved.
出处
《灌溉排水》
CSCD
1992年第4期14-19,共6页
Irrigation and Drainage
关键词
咸水
地下水
利用
灌溉
Irrigation with saline water Soil salt content Threshold value of salt tolerance of crops
