广西主要经济作物土壤硫素状况和硫肥效应研究  

Soil S status and effects of S-fertilizer on cash crops in Guangxi

作　　者：谢如林[1] 谭宏伟[1] 周柳强[1] 黄美福[1] 黄金生[1] 

机构地区：[1]广西农业科学院,南宁530007

出　　处：《广西农业科学》2009年第1期53-55,共3页Guangxi Agricultural Sciences

基　　金：广西自然科学基金(桂科自0640048)

摘　　要：对广西主要作物种植区土壤进行调查研究,结果表明:甘蔗、木薯、大豆和花生的缺硫土壤分别占41.3%、38.5%、37.1%和31.6%。施用硫肥后,甘蔗、木薯、大豆和花生分别平均增产7.4%～11.1%、5.2%～7.9%、6.6%～8.7%和7.1%～9.5%。施用元素硫肥与施用硫酸根态硫肥的增产效果基本相当。甘蔗、木薯、大豆和花生对硫的吸收量约为50～60kg/hm2、30～35 kg/hm2、22～28kg/hm2和23～30kg/hm2。The soil survey indicated that the S deficiency in the soil of sugarcane, cassava, soybean and peanut accounted for 41.3%, 38.5%, 37.1% and 31.6% respectively in Guangxi. The application of S-fertilizer to sugarcane, cassava, soybean and peanut could increase yield by 7.4%-11.1%, 5.2%-7.9%, 6.6%-8.7%, 7.1%-9.5%, respectively. The effects of the application of element S were similar to that of sulphate S. The amounts of S uptake by sugarcane, cassava, soybean and peanut were 50-60 kg/hm^2, 30-35 kg/hm^2, 22-28 kg/hm^2, and 23-30 kg/hm^2, respectively.

关 键 词：经济作物 土壤硫 硫肥效应 

分 类 号：S158[农业科学—土壤学]