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在毛主席革命路线指引下,以阶级斗争为纲,深入开展“农业学大寨”群众运动。一九七四年北楼公社发扬自力更生的革命精神,土法上马试制成功小麦叶面喷施磷灰浸出液的办法。在全县很快得到广泛推行。一九七五年使用磷灰浸出液喷小麦十四万亩,占小麦播种面积的百分之二十八。另外,在谷子、棉花和山药灌根、玉米灌棒等方面,也已广泛应用,收到了良好的效果。实践证明,施用土制磷灰浸出液,有以下好处。一、提高过磷酸钙和草木灰的利用价值,避免因草木灰与人粪尿混积所造成肥分损失。
Guided by Chairman Mao’s revolutionary line, taking class struggle as the key link, we should carry out the mass movement of “learning from agriculture in Dazhai.” North Communists in 1974 to promote the self-reliance of the revolutionary spirit, indigenous trial launched a successful trial of wheat leaf phosphorus leaching solution approach. In the county quickly get widely implemented. In 1975, 140,000 mu of wheat was sprayed using phosphate leaching solution, accounting for 28% of the sown area of wheat. In addition, millet, cotton and yam irrigation roots, corn stalks and other aspects, has also been widely used, received good results. Practice has proved that the application of indigenous phosphorus leaching solution, the following benefits. First, to improve the use of superphosphate and ash value, to avoid the mixture of grass ash and human waste caused by fertilizer loss.