摘要
分析了山西省278个试验点的农业气候区域及其不同土地肥力的小麦施肥试验数据,收集了10 a(2001—2011年)逐日天气资料以及土壤资料,并将这些数据输入CERES─Wheat小麦生长模拟模型,用试错法确定各农业气候区域及其不同土地肥力下小麦品种的遗传参数。将调好的遗传参数、逐日天气资料、土壤资料、施肥处理等输入CERES─Wheat模型,模拟山西省8个农业气候区域及4个土地肥力等级的小麦施肥效应,并对试验结果进行双标图(GGEbiplot)分析。用图解法分别建立了山西省农业不同气候区域及不同土地肥力小麦施肥增产效应模式、产投比模式、施肥利用率模式,旨在揭示不同施肥处理间和不同区域及不同地力间的增产效应和产投比差异,提出合理的施肥方案。
In this paper, the crop models of CERES-Wheat were used to simulate wheat fertilization effects in 8 agricultural climate regions and 4 soil fertilities levels in Shanxi. The test field data of wheat fertilization in 278 experimental spots of Shanxi province, 10 year （2001-2011 ） weather data and soil data were used to determine the genetic parameters of the wheat cultivars. Then the GGEbiplot was used to establish the models of wheat fertilization effect, ratio of yield to investment and utilization ratio of fertilizer. Its objective is to reveal the wheat yield increasing effects and the differences of yield-investment ratio in different applications of fertilizer and different regions and different soil fertilities, and to provide a basis for the adequate fertilization.
出处
《山西农业科学》
2013年第5期473-476,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技攻关项目(20120311001-2)
关键词
小麦
施肥效应
模拟
双标图
wheat
fertilization effect
simulation
GGEbiplot
