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发表于 2013-4-10 13:21
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来自: GOOGLE
泛红是缺氮现象
Blueberry plants require chemical elements from air,
water, and soil to ensure adequate vegetative growth and
fruit production. When levels of these nutrients in the
plant are inadequate, growth and yield may be affected.
Severely reduced nutrient supply can lead to visible
nutrient defciency symptoms, such as leaf discoloration
(Figures 1 and 2) and distortion.
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