贵州冬作马铃薯增施钾肥的效益分析  

Benefit Analysis of Increasing Application Rate of Potassium Fertilizer in Production of Winter Potato in Guizhou

作　　者：黄团[1] 雷尊国[1] 邓仁菊[1] 陈恩发[1] 邓宽平[1] 李其义 

机构地区：[1]贵州省生物技术研究所,贵州省农业生物技术重点实验室,贵州贵阳550006 [2]贵州省种子管理站,贵州贵阳550001

出　　处：《江西农业学报》2014年第11期82-86,共5页Acta Agriculturae Jiangxi

基　　金：贵州省马铃薯育种及逆境栽培创新团队项目[黔科合人才团队(2013)4003];贵州省农科院研究生创新基金项目"马铃薯四倍体栽培种与二倍体野生种原生质体融合研究"[黔农科合(创新基金)2010012号];贵州省科技基金项目"贵州魔芋种质资源遗传多样性SRAP标记分析"[黔科合J字(2013)2189号];贵州省科技厅项目"冬作马铃薯抗寒防病增产增效配套技术研究与集成转化示范"[黔科合农G字(2012)4008号];科技部星火重大专项"脱毒马铃薯种薯扩繁及优质鲜薯周年生产产业示范"[2011GA820001];贵州省科技厅农业攻关项目[黔科合NY字(2010)3012号]

摘　　要：为获得详实数据,指导贵州冬作马铃薯合理施肥,研究不同肥料、组合及不同施肥方式对冬作马铃薯产量、商品薯率及经济效益的影响。结果表明:追施不同肥料对冬作马铃薯产量、商品薯率均影响显著;施肥方式对商品薯率影响显著。施肥效果最优的处理为K2SO4+(NH2)2CO和KCl+(NH2)2CO的对水处理;其产值、纯收入和较对照增收比例分别为48490.5元/hm2、21378.0元/hm2、120.2%和45750.0元/hm2、18997.5元/hm2、95.7%,增产增效作用显著,可在冬作马铃薯中进行适当面积推广应用,进一步验证。In order to obtain detailed data to guide the rational application of fertilizers, we studied the effects of different fertilizers, fertilizer combinations, and various fertilization modes on the yield, tradable potato rate and economic benefit of winter potato production in Guizhou. The results showed that： applying different kinds of fertilizers had obvious influences on the yield and tradable potato rate of winter potato; fertilization mode had significant influence on the tradable potato rate. After applying K2SO4 ＋ （NH2 ）2CO＋ water or KCl＋ （NH2）2CO ＋ water, better effects were acquired, and the output value, net income, and income - increasing （in comparison with the control） percentage of winter potato production were 48490.5 yuan/hm^2,21378.0 yuan/hm^2 ,120.2% or 45750.0 yuan/hm^2, 18997.5 yuan/hm^2, 95.7% respectively. Thus, K2SO4 ＋ （NH2） 2CO and KCl ＋ （ NH2）2CO could be properly popularized, utilized and further verified in the production of winter potato in Guizhou.

关 键 词：冬作马铃薯 钾肥 效益 

分 类 号：S532[农业科学—作物学]