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n.梨子,梨树,pear,音标,读音,翻译,英文例句,英语词

2020-03-06 06:45:08 梨树

4)  pear tree

梨树

1.

Effects of late autumn foliar applicationof high concentration fertilizers on the growth and development in pear tree;

晚秋叶施高浓度肥料对梨树翌年生长发育的效应

2.

The pear trees were tested to study the effects of different pruning methods on their growth in summer.

研究了夏季不同样修剪法子对梨树生长的影响,结果阐明:(1)夏季不同样修剪法子对树高、干高和干周的生长有一定影响,但差别不显著;(2)与对比树体相比,春梢短截(1/4)处理树体营养生长换取缓和,二次梢生长总量最大。

3.

Selecting the pear tree as the research object, this paper observes the symptoms of the affected pear trunk, analyzes on the influence of different factors on the growth of the pear tree, and advances some corresponding preventing measures.

选取梨树为研究构造函数,观测了受害梨树树干的症状表现,剖析了不同样因素对梨树生长发育的影响,并提出了相应的防卫对策。

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