宁夏中部干旱带黄芩人工移栽膜下滴灌适宜补灌量研究

对宁夏中部干旱带旱地黄芩人工移栽膜下滴灌的补灌效应进行了试验研究,结果表明:同心县东部旱作区黄芩覆膜移栽膜下滴灌补灌在产量、补灌水利用效率及净产值兼顾的情况下,适宜补灌量在450 m3/hm2范围内能够充分发挥水分对作物产量提升的潜力,增加经济效益,提升水分利用效率,促进单株生长发育,充分挖掘单株增产潜力而提高群体生产效率,促进根部产量提升。

A Study of Suitable Irrigation Quantity of Under-film Drip Irrigation for Artificially Transplanted Scutellaria baicalensis in Middle Arid Area of Ningxia

An experimental study was made on the supplementary irrigation effect of under-film drip irrigation for artificially transplanted Scutellaria baicalensis on dry land in the Middle Arid Area of Ningxia. The result showed that for the supplementary under-film drip irrigation for the film-mulching transplanted Scutellaria baicalensis in the dry farming area of east Tongxin County, under the situation of combining the yield with the water utilization efficiency of supplementary irrigation and the net output value, when the suitable irrigation quantity was within the scope of 450 m^3/hm^2, the potentiality of irrigation for promoting the crop yield could be fully tapped, the economic benefit could be increased, the water utilization efficiency could be upgraded, the plant growth and development could be promoted, the single plant yield potential could be fully tapped to upgrade the group production efficiency and promote the root production.