摘要
实施农业部测土配方补贴资金项目,达到合理施肥,节本增效的目的,特进行了低产田水稻测土配方肥效试验。试验结果分析得出:低产稻田施肥量与产量的数学模型为y=298.538+12.074N+6.083P+13.061K-0.53N2-0.759P2-0.703K2+0.438NP+0.106NK+0.154PK,667m2氮磷钾最佳施肥指标为:N 12.11 kg、P2O56.65 kg、K2O 8.99 kg,最佳产量为490.65 kg/667m2。
The formula application by measuring soil method was tested in rice field with lower yield to gain the aim of rational application and raise economic benefit in Weng＇an county, Guizhou. The results showed that the mathematics model between application amount and yield y=298. 538＋12. 074N＋6. 083P＋13. 061K-0.53N^2-0. 759P^2-0. 703K^2＋0. 438NP＋0. 106NK＋0. 154PK, the optimum application amount of N, P2O5 and K2O was 12.11 kg/667m^2 , 6.65 kg/667m^2 and 8.99 kg/667m^2 respectively and the optimum yield was 490.65 kg/667m^2.
出处
《贵州农业科学》
CAS
2007年第6期80-82,共3页
Guizhou Agricultural Sciences
基金
农业部
农办财补贴资金项目"测土配方施肥"[黔财农(2006)72号]
关键词
低产田
水稻
测土配方施肥
肥效
field with lower yield
rice
formula application by measuring soil
fertilizer effect
