论文部分内容阅读
为简化水稻“氮素调控技术”(黄继茂等,1982。以下简称氮调)和保存测试施肥的科学性,在前几年推广氮调的基础上,结合有关技术资料,用回归统计方法建立亩产500公斤的全(?)施氮量控制方程,结合分级配施磷、钾,配套成为“回归定氮分级配施磷、钾的水稻高产施肥法”。自1986年早造至1987年早造在全县七个区(镇)进行多点验证示范,共21000多亩次,供试的杂交组合,主要有汕优63、汕优64、青优直和汕优33等,与习惯施肥法相比达到显著的增产增收效果。现将示范结果总结如下。一、氮、磷、钾施用量的确定1.氮素施用量。
In order to simplify the science and technology of rice “nitrogen regulation and control technology” (Huang Jimao et al., 1982, hereinafter referred to as nitrogen transfer) and conservation testing and fertilization, based on the promotion of nitrogen regulation in previous years, combined with relevant technical data, Production of 500 kg of nitrogen application rate of the governing equation, combined with the grading of phosphorus and potassium, supporting the “return of nitrogen graded phosphorus and potassium fertilization method of high-yield fertilization.” Since 1986 as early as 1986 to early 1987 in the county seven districts (towns) multi-point verification demonstration, a total of more than 21000 acres, for the hybrid test combinations, mainly Shanyou 63, Shanyou 64, Qing You straight And Shanyou 33, etc., compared with the conventional fertilization method to achieve significant increase in yield and income. The demonstration results are summarized below. First, determine the amount of nitrogen, phosphorus and potassium application 1. Nitrogen application rate.