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根据全国农业技术推广总站确定的试验设计方案,对宣威田丰(深圳)有限公司生产的“丰收素”(1.4％复硝钠)在水稻上的施用时期、次数、浓度进行了初步研究。 试验于1992年早季在桃江县石牛江镇进行。土质为黄泥田,土壤肥力较高。供试品种为早杂威优48。 试验设10个处理,即移栽前+幼穗期+齐穗期、幼穗期+齐穗期和齐穗期各喷施2000倍、3000倍、4000倍丰收素溶液,同期等量清水对照。随机排列,重复三次,小区
According to the experimental design scheme determined by National Agricultural Technology Extension Station, preliminary study was conducted on the application period, frequency and concentration of “Fengdu Su” (1.4% sodium hypophosphite) produced by Xuanwei Tianfeng (Shenzhen) Co., Ltd. on rice. The test was conducted in Shiyujiang Town, Taojiang County in early 1992. Yellow clay soil, higher soil fertility. Test varieties for the early Variety excellent 48. The experiment set 10 treatments, that is, before transplanting + young panicle + full heading stage, young panicle + full heading stage and full heading stage each spraying 2000 times, 3000 times, 4000 times harvesting solution, the same amount of water control . Randomly arranged, repeated three times, cell