摘要
施用硫肥的试验结果表明 :在缺硫土壤上施用硫肥 ,能显著提高棉花干物质产量和棉花产量 ,促进棉花根系和花、蕾、铃的生长发育 ;在硫含量水平丰富 (处于丰富的低限 )的土壤上施用硫肥 ,也能较好地提高棉花干物质产量 ;而在硫含量水平极丰富的土壤上施用硫肥 ,则表现出不同程度的减产。试验结果还表明 ,在北疆棉田缺硫土壤上施用硫酸钙 ,其增产效果较好 ,而在南疆棉田缺硫土壤上施用硫酸钾的增产效果较好。
The sulphur deficient in soil of cotton field in Xinjiang was proposed for the first time. The results of applying sulphur fertilizer to cotton showed that in sulphur deficient soil, applying fertilizer could increase the amounts of the cotton dry matter and yield,and the roots, flower,buds and polls grew well. In sulphur rich soil,applying sulphur fertilizer could increase the amount of cotton dry matter as well,but in sulphur over rich soil, the cotton yield decreased. The result also showed that applying CaSO 4 in South Xinjiang and applying K 2SO 4 in North Xinjiang , the effects of increase in yield were better.
出处
《新疆农业大学学报》
CAS
1999年第4期311-315,共5页
Journal of Xinjiang Agricultural University
基金
国家"九五"重中之重棉花科技攻关项目!(编号 :95 - 0 0 1- 0 4 - 0 3)
关键词
棉田土壤
硫肥
干物质产量
增产效果
soil of cotton field
sulphur deficient
sulphur fertilizer
amount of cotton dry matter
effect of increase in yield
