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不同葡萄施药模型选用的对比试验
  • 期刊名称:农业机械学报
  • 时间:0
  • 页码:80-83
  • 分类:S233.3[农业科学—农业机械化工程;农业科学—农业工程]
  • 作者机构:[1]中国农业大学理学院,北京100193, [2]美国康奈尔大学昆虫系,纽约14456
  • 相关基金:国家自然科学基金资助项目(30971940); 高等学校博士点专项科研基金资助项目(20090008110015)
  • 相关项目:农药雾滴在典型作物冠层沉积行为及高效利用
中文摘要:

葡萄施药量应随葡萄冠层生长期变化而相应变化。采用3种施药量调节模型,以达到在葡萄上合理施药的目的。3种模型分别为Unit Canopy Row(UCR)、Leaf Wall Area(LWA)和DOSAVI A。试验结果表明,对于早期葡萄,DOSAVI A和LWA两个模型的沉积量和传统的施药量处理间没有显著性差异;UCR、DOSAVI A和LWA三模型之间也没有显著性差异;在中期,LWA模型和传统的施药量处理在沉积量上仍没有显著性差异,而UCR模型所取得的沉积量显著小于其他3种处理;在后期,传统的施药量仍然取得了最大的沉降量。在所有的试验中,沉积分布(CV值)基本保持一致。

英文摘要:

The grapevine canopy changes a lot along the growth season,so do the application rates.Three models were used with the aim to apply pesticides on grapevine rationally.The models mentioned were unit canopy row(UCR),leaf wall area(LWA),and DOSAVIA.The results showed that at early growth stage,the deposits for DOSAVIA,LWA and traditional method were not different significantly,neither for UCR,DOSAVIA and LWA;at middle growth stage,LWA method achieved the similar deposits to traditional,UCR got the minimum deposits;at the late growth stage,the traditional method had the maximum deposits than the others.Among all the trials at three growth stages,the distributions of deposits(CV)were very closed to each other.

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