平罗县前进公社沿河大队的大部分土地,属于灌溉浅色草甸土(淤灌土),土壤缺磷。因此,普遍施用磷肥是该大队农作物增产的一个重要措施。该大队科学实验小组的贫下中农,在伟大领袖毛主席“备战、备荒、为人民”的伟大战略方针指引下,1970年开展了以小麦大面积施 Most of the land along the commune of Pingluo County commune along the river is irrigated light-colored meadow soil (silt soil), and the soil is deficient in phosphorus. Therefore, the general application of phosphate fertilizer is the brigade crop production is an important measure. Under the great strategic guideline of the great leader Chairman Mao, “preparing for war, preparing for war and for the people,” the poor and middle peasants of the brigade’s scientific experimental group carried out a large-scale project in 1970 on the large-scale application of wheat