湖南中低产双季稻田硫肥施用效应  

Response of Rice Growth to Sulfur Fertilizer Application in Low and Medium-yield Double Rice-cropping System in Hunan Province

作　　者：孙玉桃[1,2] 董春华 聂军[1,2] 鲁艳红 唐友云[1,2] 廖育林 SUN Yutao;DONG Chunhua;NIE Jun;LU Yanhong;TANG Youyun;LIAO Yulin(Soil and Fertilizer Institute of Hunan Province,Changsha 410125,China;Scientific Observing and Experimental Station of Arable Land Conservation(Hunan),Ministry of Agriculture,Changsha 410125,China)

机构地区：[1]湖南省土壤肥料研究所,长沙410125 [2]农业部湖南耕地保育科学观测实验站,长沙410125

出　　处：《西北农业学报》2019年第10期1681-1688,共8页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：“十三五”国家重点研发计划(2016YFD0200809,2018YFD0301006);湖南省农业科技创新资金项目(2018ZD02-2);国际植物营养研究所(IPNI)资助项目(Hunan-18)~~

摘　　要：为探明湖南缺硫和潜在缺硫中低产水稻土硫肥施用下水稻生理生产效应,2017-2018年在长沙县干杉乡和湖南省土壤肥料研究所网室分别开展田间小区试验和盆栽试验。结果表明,与不施硫肥处理相比较,盆栽试验施硫处理的稻谷增产1.5%~11.6%,田间试验稻谷增产0.0%~9.9%,其中,水稻增产效果表现为:河沙泥>黄泥,早稻>晚稻;当硫肥施用量为15、45和75 kg·hm^-2时,水稻叶绿素含量(SPAD值)分别依次提高1.0%、2.0%和2.7%,有效穗数依次增加,地上部硫素吸收总量逐步增加,由-0.58 kg·hm^-2增至2.30 kg·hm^-2,生产效率依次下降,硫肥利用率均低于5%,其中,以施硫45 kg·hm^-2处理稍高,施硫45~75 kg·hm^-2有利于土壤硫素的平衡与富集。Pot culture and field experiment were conducted to investigate the effect of sulfur fertilizer application on the rice growth in sulfur deficiency paddy soils,of net house of Soil and Fertilizer Institute of Hunan province and Ganshan township of Changsha county from 2017 to 2018,respectively.The results showed that sulphur application increased rice yield by 1.5%-11.6%and 0.0%-9.9%respectively in pot culture experiment and field experiment compared with the control,respectively.The rate of yield-increasing was higher in river sand soil than that of yellow soil.Moreover,the significant increase of rice yield was observed only in early rice season.The chlorophyll content of rice function leaves increased by 1.0%,2.0%,and 2.7%under sulfur fertilizer application with 15,45 and 75 kg·hm^-2,respectively.The number of effective panicle increased,and the uptake of sulfur of the rice also increased from-0.58 kg·hm^-2 to 2.3 kg·hm^-2 from low to high sulfur input.However,the use efficiency of sulfur fertilizer(SUE)was less than 5%in all sulfur application treatment,and the SUE decreased with the increase of sulfur input.The high sulfur fertilizer utilization rate was observed in the 45 kg·hm^-2 treatment,this suggested that high sulfur input was beneficial to the balance and enrichment of soil sulfur.

关 键 词：湖南 缺硫或潜在缺硫 中低产双季稻田 硫肥 效应 

分 类 号：S143.7+1[农业科学—肥料学]