植物营养与肥料学报2013，Vol.19Issue(3)：760-766,7.DOI:10.11674/zwyf.2013.0328
不同施氮量对甜瓜养分吸收、分配、利用及产量的影响
Effects of nitrogen fertilization on nutrient uptake, assignment, utilization and yield of melon
摘要
Abstract
An experiment was carried out to investigate the effects of different levels of nitrogen application on nutrient uptake,assignment,utilization and yield of melon in fields with drip irrigation.The results show that the accumulative amounts of N,P and K in melon plants are increased when more nitrogen fertilizer are applied,especially at the later growth stages of melon.Under the P2O5 application of 140 kg/ha,and K2O of 150 kg/ha,the nutrient uptakes,yield and sugar content of melon are the highest with 225 kg/ha N application.The nitrogen fertilizer use efficiencies are from 11％ to 29％ for the N treatments,and the nitrogen fertilizer use efficiency is increased with the reduction of nitrogen application rate.Among the nutrients required by melon,the amount of potassium is the highest,the amount of nitrogen takes the second place and the phosphorus is the least,which indicates melon is K-favoring crops.关键词
氮肥/甜瓜/养分吸收/产量Key words
nitrogen/ melon/ nutrient absorption/ yield分类
农业科技引用本文复制引用
胡国智,冯炯鑫,张炎,吴海波,熊韬,李青军..不同施氮量对甜瓜养分吸收、分配、利用及产量的影响[J].植物营养与肥料学报,2013,19(3):760-766,7.基金项目
现代农业产业技术体系建设专项(CARS-26-15) （CARS-26-15）
国际植物营养研究所(IPNI)项目(BFDP-Xinjiang-2011)资助. （IPNI）
