临清县老赵庄区李将夏大队,地处馬頰河与卫运河之間,属魯西北黃泛平原盐碱地区。全部耕地皆为輕重程度不同的盐碱地,盐分含量在0.2~0.7%之間。土质不好,肥料缺乏,大量的肥源之一——人尿,几乎全部流失,因而历年小麦平均亩产仅102斤,有的地块每亩只收50~60斤,生产水平十分低。1965年春季,在种麦后150天未降水,土壤盐分呈“T”字形向地表高度集中的情况下,我們在大面积的地块里进行了小麦浇 Linqing County Zhaozhuang Li will be the summer brigade, is located between the Majia River and Wei Canal, is a saline plain northwest of the Yellow River plain. All cultivated land is saline-alkali land with different degrees of severity with salt content of 0.2-0.7%. Soil is not good, lack of fertilizers, one of a large number of manure - human urine, almost all of the loss, so the average annual yield of wheat is only 102 pounds per mu, and some plots only receive 50 to 60 pounds per mu, the production level is very low. In the spring of 1965, we did wheat precipitation in a large plot of land under the condition that the precipitation was 150 days after the wheat was planted and the soil salinity was highly “T” shaped.