苏宁,田丰.柴达木地区杂交油菜青杂2号高产栽培模式研究[J].干旱地区农业研究,2008,(5):51~54
柴达木地区杂交油菜青杂2号高产栽培模式研究
Research on the best model of cultivation of high yield hybrid rape variety Qingza No.2 in Chaidamu area
  
DOI:10.7606/j.issn.1000-7601.2008.05.11
中文关键词:  杂交油菜  青杂2号  柴达木地区  栽培技术
英文关键词:hybrid rape  Qingza No.2  Chaidamu area  cultivation technology
基金项目:青海省2007年重点农业技术推广和农业种子项目(青农粮2007年137号)
作者单位
苏宁 青海省乌兰县农业技术推广站 青海 乌兰 817100 
田丰 青海大学农牧学院 青海 西宁 810003 
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中文摘要:
      为了提高柴达木地区青杂2号油菜的籽粒产量,采用三因素二次通用旋转组合设计试验方法,分析种植密度、施氮量、施磷量与其籽粒产量的回归关系。结果表明:随着密度、氮肥、磷肥施用量的增加,产量逐渐增加,到一定水平时,产量最高。各水平继续增加,产量逐渐下降。低、中水平密度与高氮肥用量配合,高水平密度与低氮肥用量配合,油菜产量高。在低氮(磷)水平下、产量随着磷(氮)肥施用量的增加逐渐增加,在中高氮(磷)水平下,产量随着磷(氮)肥施用量的增加先增后减。青杂2号油菜产量最高时的密度、氮肥与磷肥施用量的最优组合是密度38.9×104株·hm-2、氮肥施用量90 kg·hm-2、磷肥施用量71.75 kg·hm-2
英文摘要:
      For programing seeds'yield of rape variety Qingza No.2, by applying regressive experiment method of orthogonal conic substitution with three factors,research was made to find out the regression relationship between the density, N and P fertilizer application and the seeds' yield. The results showed that the yield increased with the increasing of planting density, N, P fertilizer application amount. When the planting density and N and P fertilizer application realize the best amount, the yield could realize the highest level. But over that amount would make the yield gradually decrease. Combining low and -middle level density and high N fertilizer application or high level density and low N fertilizer applicationt, the rape yield was high. The yield would increase with the increasing of P(N)fertilizer application in low N(P)fertilizer level. The yield will increase first and then decrease with the increasing of P (N)fertilizer application amount, in the middle and high N(P)fertilizer level. The best model of cultivation of hybrid rape variety Qingza No.2 in Chaidamu area is: planting density of 38.9×104 grain/hm-2,and N and P application amount at the rate of 90 kg·hm-2,71.75 kg·hm-2,respectively.
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