硫营养对白菜光合特性、生长及养分吸收的影响  

Effects of sulfur nutrition on photosynthetic characteristics,growth and nutrients uptake of Chinese cabbage

作　　者：任士伟 王亮亮 马存金 刘村平 REN Shiwei;WANG Liangliang;MA Cunjin;LIU Cunping(Kingenta Ecological Engineering Group Co,Ld,Linshu 276700,China;State Key Laboralory of Nutrition Resources Integrated Utilization,Linshu 276700,China)

机构地区：[1]金正大生态工程集团股份有限公司,山东临沭276700 [2]养分资源高效开发与综合利用国家重点实验室,山东临沭276700

出　　处：《磷肥与复肥》2020年第6期44-46,共3页Phosphate & Compound Fertilizer

基　　金：作物节本增效高产关键技术研究与示范(泰山产业领军人才工程鲁科字【2016】16号)。

摘　　要：通过对盆栽白菜叶面喷施不同浓度硫肥,研究硫营养对白菜光合特性、生长及养分吸收的影响.结果表明:相比空白对照,当喷施硫素质量浓度为45~135 mg/L时,白菜净光合速率提高幅度为16.97%~32.78%,白菜生物量提高幅度为11.33% ~30.00%,白菜氮、磷、钾累积量分别提高7.57% ~18.47%、1.81% ~16.49%、5.07% ~10.62%.另外,喷施硫素与空白对照相比,均不同程度地提高了白菜的Vc和可溶性蛋白含量,降低了硝态氮含量;综合各方面的分析结果,确定硫素叶面喷施质量浓度为90 mg/L时效果最佳.Pot experiments are conducted to study the effects of different concentration of sulfur fertilizer on photosynthetic characteristics,growth and nutrients uptake of Chinese cabbage by spraying.The results show that,compared with CK treatment,the photosynthetic characteristics,yield,the amount of N,P and K uptake of Chinese cabbage are increased by 16.97%-32.78%,11.33%-30.00%,7.57%-18.47%,1.81%-16.49%,5.07%-10.62%respectively when the spray concentration of sulfur fertilizer is between 45 mg/L to 135 mg/L.Furthermore,compared with the CK treatment that using sulfur fertilizer can increase the Vc content,soluble protein content,decrease the nitrate content in different degree.In conclusion,the optimum spray concentration of sulfur is 90 mg/L.

关 键 词：硫素营养 白菜 光合特性 养分吸收 品质 

分 类 号：S147.2[农业科学—肥料学]