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为了明确延长灌浆期与施用粒肥在大面积生产上的利用价值、适用范围与增产效果,1980年在全省五个点上按统一设计进行了中间试验.供试品种为南优3号或2号,设施肥(施粒肥与不施粒肥)与收获期(共5期,依次为出穗后35、40、45、50、55天)两个试验因素.施肥为正区,收割期为裂区,重复3次.部分点还增设 IR661父本作对照,处理同前.1.产量效应:将各协作点共150个小区的南优3号或2号的实收产量(Y)按下述线性数学模型:Y_(ijkl)=M+P_i+α_j+β_k+Y_I+(αβ)_(jk)(αγ)_(JI)+(βγ)_(kI)+(αβγ)_(jkI)+Σ_(ijki)作方差分析与F检验,结果表明:除肥料×收获期的互作以及地点×肥料×收割期的互作为不显著
In order to clarify the extended use of grain filling fertilizer and large-scale production in the value, scope and yield of results, in 1980 the five points in the province according to a unified design of the intermediate test for the tested varieties Nanyou 3 or 2 , Fertilization (granulation and no granulation) and harvest (a total of 5, followed by 35, 40, 45, 50, 55 days after heading), fertilization was positive and the harvest was split Area, repeated 3 times .In addition, IR661 paternity was added to some of the sites as a control and treated as before.1. Yield effect: Pressing down the yield (Y) of Nanyou No. 3 or No. The linear mathematical model is described as follows: Y_ (ijkl) = M + P_i + α_j + β_k + Y_I + (αβ) _ (jk) (αγ) _ (JI) + (βγ) _ (kI) + (αβγ) Σ_ (ijki) for the analysis of variance and F test, the results showed that: fertilization × harvest interaction and place × fertilizer × harvest interaction is not significant