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[目的]为制定三峡麦8号高产栽培技术规程提供科学依据。[方法]以小麦新品种三峡麦8号为试材,采用5因素2次回归正交旋转组合设计,研究播期、施氮量、施磷量、施钾量和基本苗数5项栽培措施与产量的关系,通过模拟寻优找出综合栽培措施决策方案。[结果]建立了重庆市万州区三峡麦8号综合栽培措施的产量数学模型,复相关系数为0.9258,达极显著水平;5项栽培措施中播期和施氮量对小麦产量影响显著,施磷量、施钾量和基本苗对小麦产量影响不显著。[结论]三峡麦8号产量在4282.05kg/hm2以上的优化栽培措施为:11月3~6日播种,基本苗207.36万~212.64万株/hm2,施纯氮量55.38~190.38kg/hm2,施磷量71.70~78.30kg/hm2,施钾量57.36~62.64kg/hm2。
[Objective] The research aimed to provide a scientific basis for formulating the high-yielding cultivation technical regulation of “Sanxiamai 8”. [Method] With the new wheat variety Sanxiamai 8 as test material, 5 factors and 2 times regressive orthogonal rotation combination design was used to study the five planting measures of sowing date, N application rate, P application rate, K application rate and basic seedling number And the relationship between yield, find the comprehensive cultivation measures through simulation optimization program of decision-making. [Result] The yield mathematic model of comprehensive cultivation measures of Sanxiamai No. 8 in Wanzhou District of Chongqing was established. The complex correlation coefficient was 0.9258, reaching extremely significant level. The sowing date and nitrogen application rate of five cultivation measures had significant effects on the yield of wheat. The effects of phosphorus amount, potassium amount and basic seedlings on wheat yield were insignificant. [Conclusion] The optimized cultivation measures of Sanxia 8 wheat yield above 4282.05kg / hm2 were sowing from November 3 to 6, basal seedling 2.0366 ~ 2,126.4 plants / hm2, applying pure nitrogen 55.38-190.38kg / hm2, The phosphorus application rate was 71.70 ~ 78.30kg / hm2, and the potassium application rate was 57.36 ~ 62.64kg / hm2.