氮磷钾肥对于2年生芦笋生育指数的影响  

Effect of N P K on Growth Index of Biennial Asparagus

作　　者：李保华[1] 于继庆[1] 牟萌[1] 郑红霞[1] 郑鑫[1] 

机构地区：[1]潍坊市农业科学院,山东潍坊261061

出　　处：《中国农学通报》2015年第34期65-69,共5页Chinese Agricultural Science Bulletin

基　　金：农业部公益性行业(农业)科研专项--芦笋产业技术研究与试验示范"北方冷凉区芦笋高效生产技术模式研究与示范"(201003074-8)

摘　　要：为了探索芦笋产量与氮磷钾肥料用量之间的关系,利用盆栽试验,按照3因子二次饱和D—最优设计方法,对于2年生芦笋的优化施肥结构做了初步探究。通过解析,建立了2年生芦笋生育指数与氮磷钾肥料用量之间的函数模型。利用模型解析,得到了主因子效应、单因子效应、边际效应以及交互效应与2年笋生育指数的关系。在本试验条件下,芦笋在第1年肥料最佳用量分别为:纯氮素425.595 kg/hm2,P2O5为290.595 kg/hm2,K2O为116.325 kg/hm2。In order to find out the relationship between the yield of asparagus and the amount of nitrogenphosphorus potassium fertilizer, a pot experiment was done, in which the authors adopted the optimum designmethod of the tri- factor quadratic saturation D and made a preliminary research on the optimum fertilizerstructure for the biennial asparagus. By analysis, a mathematic model of the relationship between the growthindex of the biennial asparagus and the amount of nitrogen phosphorus potassium fertilizer was established. Bythe model, the authors clarified the relationship between the main factor effect, the single factor effect, themarginal effect, the interaction effect and the biennial asparagus growth index. Under the conditions of thisexperiment, the optimum quantity of fertilizer in the first year was pure nitrogen 425.595 kg/hm2, P2O5290.595 kg/hm2, and K2 O 116.325 kg/hm2.

关 键 词：芦笋 二次饱和D 生育指数 

分 类 号：S6[农业科学—园艺学]