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在辽西喀左县土层深厚的褐土农田上进行小区灌溉试验.结果表明,11月底到12月初冬灌60方/亩水量可使1米土层内增加100～110毫米储水量.增加了冻层水库容,可满足翌年7月上旬大田作物需水,抗春旱缓伏旱.以玉米反应最为明显.深松30～40厘米,破坏犁底层后再冬灌,1米土层的储水量较一般冬灌增加10毫米,作物生长良好,耗水量亦大.抗御春旱的能力也较强,但对伏旱的缓解能力不及一般冬灌.以大豆增产最明显.春灌处理的土壤供水条件均不及冬灌和深松冬灌.
The experiment of plot irrigation was carried out on the deep cinnamon soil farmland in Kaizu County, western Liaoning.The results showed that irrigation of 60 square meters per mu in winter from the end of November to the beginning of December could increase the water storage capacity of 100-110 mm in 1 meter soil layer. Layer of reservoir capacity, to meet the following year in early July field crop water, drought drought ease drought response to the most obvious maize.The deep pine 30-40 cm, after the destruction of the plow and then winter irrigation, 1 meter soil water storage capacity than the average Winter irrigation increased by 10 mm, crop growth is good, water consumption is also large.Front spring drought resistance is also strong, but the ability to alleviate the drought less than normal winter irrigation.The most obvious soybean yield.Water irrigation conditions of soil water supply are not as winter irrigation and deep Pine winter irrigation.