土壤学报2019，Vol.56Issue(1)：36-43,8.DOI:10.11766/trxb201805310286
我国设施栽培养分管理中待解的科学和技术问题
Scientific and Technological Issues of Nutrient Management under Greenhouse Cultivation in China
摘要
Abstract
Rapid development of greenhouse cultivations has made substantial contributions to meeting the increasing demands of the urban and suburban resident population for vegetable and fruits and to improving farmers' economic status in China in the past four decades. However, due to inappropriate applications of nutrients, phenomena of soil degradation, like acidification, secondary salinization, nutrient unbalance, and unusual accumulations of N, P, K, and S appear commonly in the soils under greenhouse only a short time after setting up of the greenhouse, seriously affecting sustainable development of the greenhouse farming in China. As scientific researches in this aspect lag far behind the rapid developments of the greenhouse cultivation, nutrient management of greenhouse cultivation encounters a series of scientific and technological problems that call for urgent solution. In the paper, issues, like how to determine appropriate nutrient application rates for greenhouse cultivations, how to judge whether the soil nutrient supply, including macro-, medium-, and micro-elements, is in balance, how to evaluate environmental impacts of the nutrient management in greenhouse cultivation, and how to remove unusual surpluses of nutrients in the greenhouse soils, particularly sulfur, which is usually applied with phosphorus and potassium fertilizers, are discussed. It is held that it is essential and urgent to organize forces to launch system researches on the micrometeorology, soil water movement, growth and nutrient uptake of crops, and soil nutrient transformation in greenhouses with high multiple cropping index, particularly mechanisms of the interactions between water, soil, air and crops and their effects on soil nutrient availability, so as to alter the status of scientific researches lagging behind the production practices as quick as possible.关键词
设施栽培/养分施用量/养分平衡/环境效应/退化土壤修复Key words
Greenhouse cultivation/Nutrient application rates/Nutrient balance/Environmental impacts/Remediation of degraded soils分类
农业科技引用本文复制引用
蔡祖聪..我国设施栽培养分管理中待解的科学和技术问题[J].土壤学报,2019,56(1):36-43,8.基金项目
国家重点研发计划项目(2017YFD0200600)资助 （2017YFD0200600）
Supported by the National Key Research and Development Plan of China(No. 2017YFD0200600 ) （No. 2017YFD0200600 ）
