条件筛选
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What are the symptoms on leaves when a plant lacks water versus when the soil is too wet?
Leaf symptoms of water deficiency and waterlogging in plants. The plant's roots are healthy but the soil moisture is insufficient, and the leaves are constantly losing water through transpiration. This is especially likely to happen to newly planted seedlings in autumn when there is no rain, strong wind, and blazing sun. Especially for newly planted seedlings in autumn.
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Heavy metal pollution of arable land in China is severe, and a draft of the soil pollution law has been formed.
Soil pollution is somewhat hidden from sight, but the harm it causes is very serious. China News Service reported on February 3 that compared with pollution visible to the naked eye, such as water turning black and the sky turning gray, soil pollution is somewhat hidden. At a China-France environmental