摘要
研究了壤质潮土条件下隔畦灌溉种植小麦的节水效应。结果表明:0-60 cm土层含水量20％情况下,60mm灌水量的明显侧渗距离可达50-70 cm;相邻旱畦的土壤水分含量随与灌溉畦距离的增加而降低;侧渗畦的小麦产量也随与灌溉畦距离的加大而降低;生产上较适宜的侧渗畦宽为100-140 cm。140 cm畦宽隔畦灌溉的水分生产效率,比不灌水高 18．1％、比灌1水高22％、比灌2水高21．3％。
In this paper, the water-saving effect of cultivating winter wheat in inter-farmland-plot irrigation mode was studied on loam chao soil. The results indicated that at 20% of the average 0 -60 cm depth soil water content, 60 mm irrigation quotas may lead to 50 - 70 cm length of water side penetration into the neighbored non-irrigated plot; the water content of the non-irrigated plot decreased with the increase of their distance from the irrigated plot; the wheat yield in the non-irrigated plot also decreased with the increase of the distance from the irrigated plot; the rational plot width in production was between 120 - 140 cm. With the 140 cm plot width, the WUE of the inter-farmland-plot irrigation mode was 18.1% higher than WUE for the normal cultivation without irrigation, 22% higher than that with 1 time spring irrigation and 21.3% higher than that with 2 times spring irrigation.
出处
《河北农业科学》
2005年第4期18-21,共4页
Journal of Hebei Agricultural Sciences
关键词
隔畦灌溉
小麦
节水
土壤侧渗
Inter-farmland-plot irrigation mode
Wheat
Water saving
Soil water side penetration
