摘要
通过2007―2009年3年来阳东县各地区的水稻"3414"田间肥效试验结果进行统计分析,建立了阳东县水稻土壤有效氮素养分极低、低、中、高四级养分丰缺指标,提出了不同肥力水平下水稻土壤的推荐施氮肥量。结果表明,建立的水稻土壤有效氮丰缺指标的数学模型为y=19.058Ln(x)+23.797,水稻土壤有效氮含量与推荐施氮量的数学模型为y=-0.0064x+3.09。根据模型获得的推荐施氮量仍需在生产中进一步验证。
This paper studied the effects of different fertilizer models on simulation for the ＂3414＂fertilizer experiments,which were conducted from 2007 to 2009 in 11 town in Yangdong were established.It could be dividxed into hight,medium,low,extra low four-level. And the recommended fertilizer of different nitrogen levels of the paddy soil was put forward.The result indicated that,the regression equation index for soil available nitrogen content was y=19.058Ln（x）＋23.797.The regression equation of the recommended nitrogen content was y=-0.0064x＋3.09.According to equations,we got the theoretical numeric,but it still had further to confirm in the production.
出处
《广东农业科学》
CAS
CSCD
北大核心
2010年第9期105-107,共3页
Guangdong Agricultural Sciences
基金
广东省测土配方施肥补贴项目(粤农[2007]79号)
关键词
测土配方
水稻
丰缺指标
氮素
formula fertilization by soil testing
rice
index system of nutrient abundance
nitrogen
