中国生态农业学报2011，Vol.19Issue(6)：1261-1267,7.DOI:10.3724/SP.J.1011.2011.01261
施肥对青岛市设施蔬菜产量、净产值及土壤环境的影响
Effect of fertilization on yield, net income and soil environment in Qingdao protected vegetable production systems
摘要
Abstract
Abstract To increase fertilizer use efficiency, reduce fertilizer cost and limit environmental pollution by fertilization, the study on effects of fertilizer application on yield, net income and soil environment in protected vegetable production systems in Qingdao were conducted. The study showed that excessive use of nitrogen (N), phosphorus (P) and potassium (K) fertilizers in tomato and cucumber fields, with N, P2O5 and K2O average annual application rates of 1 841.5 kg·hm-2, 864.0 kg·hm-2 and 1 978.7 kg·hm-2 for cucumber; and 1 436.7 kg·hm-2, 833.6 kg·hm-2 and 1 643.7 kg·hm-2 for tomato, respectively. Organic manure and chemical fertilizers were applied at relatively reasonable rates, suggesting that much attention had been paid to the use of organic manure. Annual N, P2O5 and K2O application rates had significant effects on annual yield and net income. Linear equations adequately explained the relationships of yield, net income with fertilizer application rate in the region. Soil nitrate-N content increased with increasing annual application rate of N. The protected vegetable fields of 31.4% farmer household had high or relatively high nitrate-N contents. Soil available P also increased with increasing annual P2O5 application rate. Similarly, 74.3% farmer household' protected vegetable fields had high soil available P content. Protected vegetable soils apparently acidified, 68.6% farmer household' protected vegetable field soil was acid or subacid, showing acidifying tendency. The results suggested that N, P2O5 and K2O application rates should drop. Also new techniques such as computerized fertilization, integrated water-fertilizer managements, bacteria treated straws, soil straw return, etc., should be popularized to ensure the development of sustainable protected vegetable production in Qingdao.关键词
青岛/设施蔬菜/施肥量/产量/净产值/土壤环境Key words
Qingdao/ Protected vegetable production/ Fertilizer application rate/ Yield/ Net income/ Soil environment分类
农业科技引用本文复制引用
高峻岭,宋朝玉,王玉军,唐继伟,孙兆法,张淑霞,李祥云,何金明..施肥对青岛市设施蔬菜产量、净产值及土壤环境的影响[J].中国生态农业学报,2011,19(6):1261-1267,7.基金项目
现代农业产业技术体系建设专项(CARS-25-X-XX)资助 （CARS-25-X-XX）
