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鄞县丘介公社横泾大队种子队,根据江苏农民师傅的介绍,1972年在麦田播前初步进行了氨水灭草的实践。方法是在整地后、播种前,用喷雾器每亩喷洒氨水原液30～50斤。一般在上午喷,下午播,或今天喷,明天播的,均没有发现对麦子的发芽、出苗有不良影响。而喷过氨水的麦田,与邻队、邻田相比,不仅杂草减少,而且肥效也比较明显,出苗整齐健壮。在1972年烂冬、1973年烂春的不利天、地条件下,10.48亩麦子,平均亩产仍达418.3斤。
Yin County Qiu referral commune Heng Jing brigade seed team, according to the introduction of farmers in Jiangsu Province, in 1972 before the broadcast sowing in the practice of ammonia weed control. Method is in the land preparation, before sowing, sprayer spray acre ammonia solution 30 to 50 pounds. Generally spray in the morning, afternoon sowing, or today spray, broadcast tomorrow, did not find the germination of wheat, sprouting have a negative impact. The wheat field sprayed with ammonia water, compared with the neighboring team, adjacent fields, not only to reduce weeds, but also more obvious fertilizer effect, emergence neat and vigorous. In 1972 rotten winter, bad weather in spring 1973, under the conditions of 10.48 acres of wheat, the average yield still reached 418.3 pounds.