摘要
在浦东滩涂盐碱地垦复过程中,采用土壤综合改良技术,包括沟渠配套引淡排咸、农机改装适度耕翻、淡水灌溉淋盐洗碱、移高垫低平整土地、扣青培肥改善土壤、水稻秸秆全量还田、增施外源有机肥料、土壤调理减少盐分等,可以降低土壤盐分和pH,提高土壤耕层养分,达到种植水稻和逐年提高水稻产量的目的。滩涂地经4年改良,为碱性土壤,有机质、氮、磷含量低,钾含量高。在生产中应注意水早轮作、增加有机质和有效氮、磷的投入。
In the process of the reclamation of the shoal saline-alkali land in Pudong,soil comprehensive improvement technology,including desalinization via building ditches,moderate ploughing by agricultural machinery,water rinse and drain alkaline,land ploughing and land leveling,fertility betterment by green manure manuring,rice straw returning,applying organic fertilizer and desalination of shoal soil,were used to reduce the soil salinity and pH value,increase soil nutrients in plough layer,and the purpose of planting rice and increasing rice yield every year was achieved.After four-year of improvement,the shoal turned into alkaline soil with low content of organic matter,N,P and high content of K.The cultivation ought to employ paddy-upland rotation and apply more organic fertilizer,N and P to the soil.
出处
《上海农业学报》
CSCD
2016年第3期110-114,共5页
Acta Agriculturae Shanghai
基金
上海市科委重大科技攻关项目(09DZ1900104)
关键词
滩涂
土壤改良技术
应用效应
土壤全盐量
PH
养分
水稻产量
Shoal
Soil improvement technology
Application effect
Total salt content of soil
pH
Nutrient
Rice yield