菜用金荞麦高产栽培技术优化  

Optimization of High-yield Cultivation Technique in Fagopyrum dibotrys

作　　者：何远宽 赵维 马杰 闵家媛 程娜 邓禄生 赵明勇 

机构地区：[1]毕节市农业科学研究所,贵州毕节551700

出　　处：《贵州农业科学》2016年第1期52-55,共4页Guizhou Agricultural Sciences

基　　金：毕节科技计划项目"观光园的珍稀和药食兼用植物资源圃建设"[毕科合字(2015)37]

摘　　要：为明确金荞麦在毕节地区适宜的播期及繁殖方式,建立金荞麦的优化栽培模式,以栽培密度、氮肥、钾肥、磷肥施用量为对象,运用四因子五水平二次回归正交旋转组合设计方法,研究不同播期和繁殖方式对金荞麦鲜茎叶产量的影响。结果表明：金荞麦适宜播期为1月下旬至2月上旬,以芽苞繁殖的产量最高;通过模拟寻优,建立了金荞麦茎叶鲜产量与栽培密度、氮肥、钾肥、磷肥施用量间关系的数学模型,提出金荞麦茎叶鲜产量≥36 000kg/hm2的综合农艺栽培措施为：栽培密度12.29万~12.95万株/hm2,氮肥施用量81.63~98.37kg/hm2,钾肥施用量73.6~86.4kg/hm2,磷肥施用量109.14~130.86kg/hm2。The effect of different planting density,nitrogen level,potassium level and phosphorus level on yield of Fagopyrum dibotrys stem and leaf under different sowing date and reproductive pattern was studied by the quadratic regression rotation combination design to explicit the appropriate sowing date and reproductive pattern of Fagopyrum dibotrys and build the optimization cultivation pattern in Bijie Prefecture.Results：The appropriate sowing date is early January to late February and the yield of Fagopyrum dibotrys stem and leaf is the highest under the bud reproductive pattern.The mathematic model among fresh stem and leaf yield and planting density,nitrogen level,potassium level,phosphorus level was established by the simulation and optimization method.The comprehensive agronomic cultivation measures for more than 36 000kg/hm2 Fagopyrum dibotrys stem and leaf yield are 12.29~12.95 ten thousand plants/hm2,81.63~98.37kg/hm2 nitrogen level,73.6~86.4kg/hm2 potassium level and 109.14~130.86kg/hm2

关 键 词：金荞麦 高产栽培 栽培模型 技术优化 毕节 

分 类 号：S517[农业科学—作物学]