论文部分内容阅读
二、田间试验设计(一)拟订田间试验方案田间试验方案的拟订,需要周密考虑.因为田间试验是在自然条件下进行的,自然条件具有复杂性,其各个因素(水分、空气、日光、温度、肥力)是密切联系、相互影响的.在田间试验中,除了不同的处理条件不同外,其他一切条件,应该尽量一致.这一原则叫做唯一差异原则.但这个原则在拟订田间试验方案时,不能机械的运用.例如,根外喷肥效果试验,在设置对照处理时,应该喷上同样
FIELD EXPERIMENTAL DESIGN A. Development of field test program The field test program formulation needs careful consideration because the field test is conducted under natural conditions with complex natural conditions and its various factors (moisture, air, sunlight, temperature , Fertility) are closely linked and influence each other.In field experiments, except for different treatment conditions, everything else should be as uniform as possible.This principle is called the only principle of difference, but this principle in the formulation of field trials program, For example, the effect of fertilizer outside the root test, set the control treatment should be sprayed with the same