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农六师103团场二连在1981年小面积冬小麦液氨施肥试验的基础上,1982至1983年度,又在180亩冬麦地进行以液氨为主,兼施硝铵的试验。 试验地在播种前(即9月4—7日)每亩施液氨9公斤作基肥,9月10—15日播种,用的品种是“704”,播量32斤。播种时用磷酸二铵10公斤作种肥,9月17—19日灌了一次出苗水,第二年小麦返青时追硝铵14公斤,与邻近条件基本相同的常规施肥的条田,即冬麦返青后每亩追施尿素31公斤,同试验地等N的条田对比,通过田间调查,用液氨作基肥的有如下特点。
In the 1982-1983 year, on the basis of experiments on liquid ammonia fertilization of small-area winter wheat in 1981, the second company of Farmers’ Sixth Division 103 also carried out experiments mainly on liquid ammonia and ammonium nitrate at 180 mu of winter wheat field. Before the sowing (September 4-7), 9 mu of ammonia was applied as basal fertilizer per acre and sown September 10-15. The variety used was 704, and the sowing rate was 32 kg. When sowing with 10 kg of diammonium phosphate as seed fertilizer, September 17-19 irrigation of a seedling water, the second year when the wheat is green ammonium nitrate recovery 14 kg, and adjacent to the same conditions of conventional fertilization field that winter Wheat acre after the topdressing urea 31 kg per acre, with the test field and other fields compared to N, through the field investigation, with liquid ammonia as a base fertilizer has the following characteristics.