摘要
通过“3414”回归最优设计原理设置的作物肥效试验结果,获得肥料效应函数方程,由此数学模型得出理论氮、磷、钾最佳施肥量,其中N8.60-9.68kg/667m^2,P2O53.47-3.76kg/667m^2,K2O5.48-5.91kg/667m^2,最佳产量410.99-413.42kg/667m^2。根据田闽试验及土壤测试结果,结合当地农业生产实际,建议氮、磷、钾推荐量分别为N9.3kg/667m^2、P2O53.5kg/667m^2、K2O5.6kg/667m^2,或者N9.2kg/667m^2、P2O53.0kg/667m^2、K2O6.0kg/667m^2,或者N9.1kg/667m^2、P2O23.5kg/667m^2、K2O6.1kg/667m^2。
Based on the results of crop fertilizer effectiveness experiment by means of regression best-design principle, a function equation was obtained, from which the best fertilization amount can he calculated by a math model. Thereinto, N: 8.60-9.68 kg/667m^2,P2O5: 3.47-3.76 kg/667m^2, K2O:5.48-5.91 kg/667m^2 ,best yield: 410.99-413.42 kg/667m^2. Based on the results of field experiment and soil test, integrating local condition of farming production, the recommended fertilization amount of N, P, K are N 9.3 kg/667m^2、P2O5 3.5 kg/667m^2、K2O5.6 kg/667m^2 or N 9.2 kg/667m^2,P2O5 3.0 kg/667m^2 ,K2O6.0 kg/667m^2, or N 9.1 kg/667m^2 ,P2O5 3.5 kg/667m^2 ,K2O6.1 kg/667m2.
出处
《广西农学报》
2008年第6期1-4,共4页
Journal of Guangxi Agriculture
基金
农业部2007年测土配方施肥补贴项目
关键词
水稻
肥效试验
施肥模型
施肥量
Rice
fertilizer effectiveness experiment
fertilization model
fertilization