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本帖最后由 poplarbird 于 2016-12-8 22:01 编辑
ItsThere 发表于 2016-12-8 19:32 
连着看了几篇老帖子大概心里有数了。
大概就是大网棚挡了鸟儿和虫儿蚂蚁也挡了蜜蜂传粉,土里带了什么虫 ...
西红柿可以上蚊帐, 我家的只有大青虫,而且是之前不知道所以吧蚊帐打开了才有的。人工授粉只需要摇一摇它。
Tomatoes are self-pollinating,
Often this is process has been completed before the flowers are fully open - but not always. Beans, eggplant and peppers are self-pollinating, too.
While tomato flowers are typically wind pollinated, and occasionally by bees, the lack of air movement or low insect numbers can inhibit the natural pollination process. In these situations, you may need to hand pollinate tomatoes to ensure pollination takes place so your tomato plants bear fruit.
This is the easiest hand-pollinating you'll ever do. ... Giving your tomato plants a little daily shake will help produce more fruit.
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