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后季稻生长季节较短,合理施用氮素化肥是争取稳产高产的一项重要措施。1983年,我们在新场公社进行了后季稻氮素化肥用量试验,探讨了化肥用量与产量构成的关系,以及对群体建成的影响,以期为合理施用化肥提供依据。试验田为粘质黄泥头,有机质含量1.81％,前作早稻。供试品种为73—2(农虎6号选系),晚熟晚粳类型。每亩施90斤菜籽饼作基肥。氮化肥以碳铵计,设每亩施0、30、60、90、120、150、180、210斤8种处理,以无肥区作对照。小区面积48米~2,
The season of later rice growth is shorter, and rational application of nitrogenous fertilizer is an important measure for stable and high yield. In 1983, we conducted a trial on the amount of N fertilizer used in late rice in New Commune Commune to discuss the relationship between the amount of chemical fertilizers and the composition of production as well as the impact on the population construction, in order to provide a basis for the rational application of fertilizers. Experimental field of sticky yellow mud head, organic matter content of 1.81%, before the early rice. Test varieties for the 73-2 (Nonghu 6 election line), late-maturing late japonica type. 90 pounds per acre Rape seed cake for basal fertilizer. Nitrogen fertilizer ammonium bicarbonate meter, set 0,30,60,90,120,150,180,210 kg per acre 8 kinds of treatment, no fat area as a control. Residential area of 48 meters ~ 2,