摘要
红砂土施用不同硫肥品种和用量的田间试验结果表明：（１）红砂土施用硫肥能增加芝麻和油菜的籽粒产量，每ｈｍ２施４０ｋｇＳ的普钙处理增产达５％显著水平，产量分别比对照提高７．６％和１１．３％；（２）３种硫源对芝麻和油菜籽粒的增产效应顺序如下：普钙４０＞石膏４０＞硫磺４０；（３）每ｈｍ２施２０和４０ｋｇＳ的石膏处理对籽粒产量无显著性差异；（４）施用硫肥能提高红砂土耕层土壤有效硫含量，普钙处理的土壤在芝麻收获后其有效硫含量增加达５％显著水平；（５）红砂土施用硫肥显著提高了芝麻籽粒的Ｎ，Ｓ含量。
The results of field experiments on a red sand soil applied sulpher fertilizer shown that (1)application of sulpher fertilizer increased grain yields of sesame and rapeseed and the treatment SSP40 (single supper phosphate) of them increased grain yields by 7.6% and 11.3%,respectively,which were significant at the 5% level;(2) of the sulpher source applied,grain yield of the crops was in order of treatment:SSP40>gypsum40>elemental sulpher (ES)40;(3)there was no significant difference of the yield between the treatments of gypsum20 and gypsum40;(4)application of sulpher fertilizer increased the contents of available S in plough layers of the soil,but only the treatment SSP40 approached significance at the 5% level when the soil samples were taken after harvesting sesame;and (5)application of sulpher fertilizer significantly increased the contents of N and S in sesame grain.
出处
《浙江农业学报》
CSCD
1999年第3期133-135,共3页
Acta Agriculturae Zhejiangensis
基金
国际硫研究所资助
