闽东南耕地土壤有效硫含量及主要粮油作物硫肥效应  

Effect of sulphur on the main cereal and oilseed crops and cultivated soil available S status in the southeast of Fujian

作　　者：彭嘉桂[1] 章明清[1] 林琼[1] 杨杰[1] 张秋芳[1] 

机构地区：[1]福建省农业科学院土壤肥料研究所,福建福州350013

出　　处：《福建农业学报》2002年第1期49-52,共4页Fujian Journal of Agricultural Sciences

基　　金：国际 (美 )硫研究所合作项目 (2 0 0 1 0 11)

摘　　要：116个土壤样品分析结果表明 ,闽东南地区耕地土壤有效硫平均含量为 2 1.7mg· kg- 1。其中 ,小于 16mg· kg- 1 的临界指标的样品占总样品数的 5 7.8%。田间试验结果 ,水稻、甘薯和花生在每公顷施硫 2 0～ 6 0 kg范围内 ,都有不同程度的增产效果 ,增幅分别为 2 .9%～ 15 .5 %、 5 .6 %～ 2 2 .4 %和 2 .6 %～ 34.5 % ,且具有一定后效。同时 ,施用硫肥还改善了农产品品质 ,花生粗脂肪、粗蛋白 。The average of available S in 116 soil samples from cultivated soils of southeast Fujian was 21 7 mg·kg -1 , and the soils whose available S contents were lower than critical value(16 mg·kg -1 ) accounted for 57 8% of cultivated soils in southeast Fujian.The result of field test showed that there were different yieldincreasing efficiency by applying S 20-60 kg·hm -2 to the plants of rice, sweet potato and peanut, etc The increasing ratio of rice,sweet potato,peanut were 2 9%-15 5%, 5 6%-22 4%, 2 6%-34 5%, respectively Post\|effect was abserved.Meanwhile, applying S fertilizer improved the quality of farm products, such as crude fat, crude protein in peanut and sweet potato, and so on.

关 键 词：闽东南耕地 土壤有效 硫 粮油作物 施肥效应 

分 类 号：S153.61[农业科学—土壤学]