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我们根据贫下中农在生产实践中创造的“送稻头”施肥法,和日本提出的水稻“V”字型施肥理论,设计了晚稻籼、粳、糯三种类型的穗粒肥效果试验。籼稻选用早籼竹莲矮倒种,粳稻选用晚粳农虎6号,糯稻选用京引15。试验田前作早稻广陆矮4号,小区面积2厘,重复2次,密植5×4寸,每丛8～10本。各处理均不施基肥,移栽后2～3天施苗肥每亩过磷酸钙50斤,钾氮肥50斤,硫铵20斤,穗粒肥各处理每亩施氯化铵10斤。穗粒肥施用时期分幼穗分化期、减数分裂期和抽穗期,以不施穗粒肥为对照。现从试验结果来看,作如下小结。
Based on the “sending rice head” fertilization method and the “V” shape fertilization theory proposed by Japan, the experiment on the effects of three types of late rice, indica rice, japonica rice and glutinous rice on grain yield was designed. Indica rice selection early indica bamboo dwarf species, japonica rice selection of late japonica Nonghu 6, glutinous rice selection Beijing cited 15. Before the trial field for early rice Guanglu short 4, plot area 2%, repeated 2 times, close planting 5 × 4 inch, each bundle of 8 to 10. All treatments were not applied with basal fertilizer. After transplanting, 2 to 3 days after transplanting, 50 kg of MSP per acre, 50 kg of K and N, 20 kg of ammonium sulfate and 10 kg of ammonium chloride per acre were applied. Spike fertilizer application period of spike differentiation, meiosis and heading stage to non-spike fertilizer as a control. Now from the test results, make the following summary.