中国生态农业学报2012，Vol.20Issue(1)：13-18,6.DOI:10.3724/SP.J.1011.2012.00013
新型有机无机复合肥对冬小麦产量及关键期生长的影响
Effects of soil fertilizer amendment on growth during critical growth stages and yield of winter wheat
摘要
Abstract
Reasonable irrigation and fertilization are key factors of winter wheat production.Field experiments were conducted in 2009～2010 with "Xiaoyan 22" as materials.The effects of soil fertilizer amendment (SFA) on water content along soil profile and growth at critical growth stages and yield of winter wheat were investigated.The results show that yield under SFA treatments was 10%～30% higher than that under normal fertilization (NF) treatment.Optimum SFA increased with increasing irrigation amount.Theoretical maximum yield was 8 894.11 kg·hm-2 which was under single irrigation with 1 350 kghm2 SFA.At the start of jointing stage,soil water content under SFA treatments initially increased steadily and then slowly decreased in a V-shaped distribution curvefrom surface to deep layer along soil profile,quite different from the W-shaped distribution curve under NF treatment.At grain-filling stage,the depth of max and min soil moisture content under SFA occurred much deeper than that under NF treatment.At tillering stage,plants under SFA treatments were low with relatively thick and short roots.This trend was more obvious at higher fertilizer application rates.At grain-filling stage,however,plant height was lowest,spike dry-matter and dry-weight of aboveground part were highest under middle SAF treatment.In the middle of SFA treatment,wheat filling rate was significantly higher than that under allother treatments.Thus SFA deepened the position of max and min soil moisture content along soil profile.Wheat growth rate under SFA was higher than under NF treatment.SFA treatment facilitated optimal production in low water conditions (jointing stage irrigation of 60 mm) than NF treatment.关键词
新型有机无机复合肥/冬小麦/土壤含水率/植株形态/灌浆速率/产量Key words
Soil fertilizer amendment/Winter wheat/Soil water content/Plant morphology/Grain-filling rate/Yield分类
农业科技引用本文复制引用
周立峰,冯浩..新型有机无机复合肥对冬小麦产量及关键期生长的影响[J].中国生态农业学报,2012,20(1):13-18,6.基金项目
"十二五"国家高技术研究发展计划(863计划)项目(2011AA100503)和中央高校基本科研业务费专项资金资助 （863计划）
