Study on Soil Nutrient Limiting factors in the Plantation of Xiangxi and Xiangzhong Areas,Hunan Province
The limiting factors of soil nutrient were identified by systematic application of indicator plant（grain sorghum） and diagnostic soil analysis（soil adsorption trial and pot experiment） in the plantation of Xiangzhong and Xiangxi areas,Hunan province.The results showed that there were more nutrient limiting factors in the soils of Xiangxi areas than Xiangzhong areas.N was the only soil nutrient limiting factor in the plantation of Xiangzhong areas,while N,P,and S was the first,second and third soil nutrient limiting factor in the planteation of Xiangxi areas,respectively.Compared with OPT treatment,biomass of grain sorghum plant grown under N-lacked treatment decreased by 81% in plantation of Xiangzhong areas,while it decreased by 85%,45% and 32% under the N-,P-and S-lacked tteatment in the plantation of Xiangxi areas,respectively.
Limiting factorSystematic approachPlantationXiangxi areasXiangzhong areas
NETL
NSTL
万方数据
维普
