中国水稻科学2012，Vol.26Issue(4)：487-494,8.DOI:10.3969/j.issn.1001-7216.2012.04.015
不同施氮量对单季稻养分吸收及氨挥发损失的影响
Effects of Different Nitrogen Application Levels on Rice Nutrient Uptake and Ammonium Volatilization
摘要
Abstract
The effects of different nitrogen application levels on nutrient uptake and ammonium volatilization were studied in a field experiment with rice variety Zheyou 12 as material. The results showed that the accumulative amounts of nitrogen, phosphorus and potassium showed an increasing tendency with the increasing nitrogen application level from 0 to 330 kg/hm2. The accumulative amounts of nitrogen, phosphorus and potassium decreased when the nitrogen application level was above 270 kg/hm2. The accumulative amounts of nitrogen, phosphorus and potassium increased with organic manure addition at 150 kg/hm, nitrogen application level. The nitrogen uptake peaked from jointing stage to heading stage, and also increased with the increasing nitrogen application level from 0 to 270 kg/hm2. The rice grain yields were positively correlated with the accumulative amounts of nitrogen, phosphorus and potassium. Among those, the accumulative nitrogen amount was most closely correlated with rice yield. Velocity and accumulative amounts of ammonium volatilization increased with the increasing nitrogen application level. Compared with other stages, faster ammonium volatilization velocity and higher ammonium accumulative amount were observed several days after the basal fertilizer was applied. Ammonium volatilization velocity at nitrogen application rate of 270 kg/hm! and 330 kg/hm* were far higher than those in other treatments. The ammonium nitrogen volatilization loss accounted for 23. 9% of the total applied nitrogen at the nitrogen application level of 330 kg/hm关键词
水稻/氮素/养分吸收/氨挥发Key words
rices nitrogen/ nutrient uptake/ ammonium volatilization分类
农业科技引用本文复制引用
俞巧钢,叶静,杨梢娜,符建荣,马军伟,孙万春,姜丽娜,王强,汪建妹..不同施氮量对单季稻养分吸收及氨挥发损失的影响[J].中国水稻科学,2012,26(4):487-494,8.基金项目
浙江省重大科技专项农业项目(2009C12001) （2009C12001）
国际科技合作项目(2011DFA91190) （2011DFA91190）
国家自然科学基金资助项目(31172030) （31172030）
浙江省自然科学基金资助项目(Y3090180). （Y3090180）
