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大葱品质
相关语句
  onions ′ quality
     Relationship between Onions′ Quality and Its Eco-environment in Zhangqiu County
     章丘大葱品质与生态环境的相关性
短句来源
  相似匹配句对
     Relationship between Onions′ Quality and Its Eco-environment in Zhangqiu County
     章丘大葱品质与生态环境的相关性
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     Qualities in Men & Women
     男女的品质
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     Perfect quality
     完美品质
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     Effects of Decreasing Chemical Fertilizer Application and Applying Organic Fertilizer on Yield and Quality of Welsh Onion
     化学肥料减量及有机肥施用对大葱产量和品质的影响
短句来源
     Welsh onion (Allium fistulosum L.)
     大葱(Allium fistulosum L.)
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The effect functions of N.P.K coordinative application on economical yield,fertilization profit and N ratio of split application at different growing stage of scallion were studied by the field experiments with 311-A best regression design of supposed saturation and {3,2} saturated design of single shape check.The results showed that the best N,P,K fertilization quantity for scallion with maximum economical yield was N 317.25 kg·hm~(-2),P_(2)O_(5)6.26 kg·hm~(-2),K_(2)O 93.34 kg·hm~(-2)respectively.The best N.P.K...

The effect functions of N.P.K coordinative application on economical yield,fertilization profit and N ratio of split application at different growing stage of scallion were studied by the field experiments with 311-A best regression design of supposed saturation and {3,2} saturated design of single shape check.The results showed that the best N,P,K fertilization quantity for scallion with maximum economical yield was N 317.25 kg·hm~(-2),P_(2)O_(5)6.26 kg·hm~(-2),K_(2)O 93.34 kg·hm~(-2)respectively.The best N.P.K fertilization quantity for scallion with best fertilization profit was N 310.76 kg·hm~(-2),P_(2)O_(5) 1.53 kg·hm~(-2) and K_(2)O 89.93 kg·hm~(-2).The better N fertilization quantity at different growing stage of scallion(basal dressing,former and latter topdressing) was 74.08、112.24 and 124.68 kg·hm~(-2) respectively.At the equivalent fertilizer,the quality of scallion was affected by the N,P,K fertilization quantity and N fertilization periods.

应用311-A拟饱和最优回归设计和{3,2}单形格子饱和设计,通过氮磷钾肥配比和氮肥分期施用田间试验,拟合大葱施用氮磷钾肥对经济产量、施肥利润及氮肥分期施用比例的效应函数,寻优结果表明:大葱最高产量施肥量分别为N 317.25 kg.hm-2、P2O5kg.hm-26.26和K2O 93.34 kg.hm-2,最佳经济施肥量则分别为N 310.76 kg.hm-2、P2O51.53 kg.hm-2和K2O 89.93 kg.hm-2;氮肥各时期(基肥、前期追肥、后期追肥)较佳施用量分别74.08 kg.hm-2、112.24 kg.hm-2和124.68 kg.hm-2。在相同的肥底下,大葱品质受氮磷钾施用量及氮肥施用时期的影响。

 
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