安徽农业科学2017，Vol.45Issue(16)：115-118,4.
秸秆全量还田条件下作物营养障碍因子研究
Crop Nutrition Disorders Facters under Returning All Wheat Straw to Field
摘要
Abstract
[Objective] To determine crop nutrition disorders facters under returning all wheat straw to field,and provide a reference for the accurate fertilization of the whole amount of straw returning.[Method] With the rice variety of South japonica 9108 as materials,using soil mixed straw (1 kg soil + 5 g straw) and nutrient solution,phosphorus,potassium,calcium,magnesium,sulfur,iron,manganese,copper,zinc,boron and molybdenum 12 kinds of element deficiency in seedling were treated,effects of different nutrient elements on the growth of aboveground part (plant height,stem diameter,chlorophyll SPAD) and underground part (root) on rice seedling stage were studied.[Result] Under different nutrient solution treatment,the height,stem diameter,chlorophyll SPAD and root morphological indexes of rice seedlings basically were lower than the complete nutrient solution treatment (control),the nitrogen deficiency indexes decreased and reached a very significant difference.[Conclusion] Under the condition of total straw returning to field,the crop nutrient barrier factors from large to small were N,S,Zn,P,K,Ca,Mn,Fe,Cu,B,Mo,Mg,the biggest impact elements were nitrogen,followed by sulfur,zinc and phosphorus.In order to make full use of the total amount of straw returning to the soil to improve soil fertility and increase production and quality,should be paid attention to the application of nitrogen,sulfur,zinc,phosphorus.关键词
水稻/秸秆还田/营养障碍Key words
Rice/Straw returning/Nutritional disorders分类
农业科技引用本文复制引用
金婷,柯帅,王盼星,盛海君,钱晓晴..秸秆全量还田条件下作物营养障碍因子研究[J].安徽农业科学,2017,45(16):115-118,4.基金项目
江苏省普通高校研究生科研创新计划项目(SJLX16-0597) （SJLX16-0597）
扬州市科技计划项目(YZ2016038) （YZ2016038）
江苏省政策引导类计划项目(BN2016197). （BN2016197）
