常宁市新垦水田烟草最佳施肥方案的研究  

Optimum Fertilization Scheme for Tobacco in Newly Reclaimed Paddy Field in Changning City

作　　者：杜宏 吴国启 李万源 成红云 DU Hong;WU Guo-qi;LI Wan-yuan;CHENG Hong-yun(Changning Soil and Fertilizer Workstation,Changning 421500,PRC)

机构地区：[1]常宁市土壤肥料工作站,湖南常宁421500

出　　处：《湖南农业科学》2019年第2期39-42,共4页Hunan Agricultural Sciences

基　　金：国家农业部农技推广专项资金(农办财〔2016〕43号)

摘　　要：采用"3415"肥料试验设计方案,在施纯N:0、90、180、270 kg/hm^2,P2O5∶315 kg/hm^2,有机肥:菜籽饼2 250 kg/hm^2的设计条件下,对常宁市新垦水田进行了烟草施肥正交试验。结果表明:在不施有机肥条件下的最佳施肥量氮、磷、钾分别为175、119和226 kg/hm^2,其比例为1∶0.68∶1.29;单施有机肥比氮磷钾低水平施用时增产,但不及氮磷钾施用量在2水平值的产量,表明在施用有机肥的基础上,合理配施氮磷钾肥仍有增产增收空间。Using the“3415”fertilizer design scheme,under the design conditions of unit(kg/hm^2)pure N for 0,90,180,270,P2O5 for 0,60,120,180,K2O for 0,105,210,315,and organic fertilizer for rapeseed cake 2 250 kg/hm^2,the orthogonal experiment of tobacco fertilization was carried out in the newly reclaimed paddy field of Changning City.The results showed that under the condition of no organic fertilizer application,the optimum fertilizer rates were 175 kg/hm^2 for nitrogen,119 kg/hm^2 for phosphorus and 226 kg/hm^2 for potassium,and the ratio of nitrogen,phosphorus and potassium was 1∶0.68∶1.29.The yield of single application of organic fertilizer was higher than that of low-level application of N,P and K,but less than that of level 2 application of N,P and K.It showed that there was still room for increasing yield and income of rational combination of N,P and K fertilizers on the basis of organic fertilizer application.

关 键 词：烟草 氮磷钾 最佳施肥 新垦水田 常宁 

分 类 号：S572[农业科学—烟草工业]