品尝你的人
发表于 2025-3-26 22:24:54
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sleep-spindles
发表于 2025-3-27 02:11:57
The Effect of Trace Elements on Lower Plants,d as the result of biogeochemical (Lounamaa, 1956; Shacklette, 1967; Doyle ., 1973; Whitehead and Brooks, 1969) and air and aquatic monitoring surveys (Laaksovirta and Olkkonen, 1977; Pilegaard, 1978; Ruhling and Tyler, 1970; Ray and White, 1979).
宠爱
发表于 2025-3-27 06:06:09
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NORM
发表于 2025-3-27 09:52:28
Michael T. Sheaff,Naveena Singhhibit trace element deficiencies which have to be corrected by applications, either to the land or directly to the crop, of appropriate chemicals in order to achieve satisfactory yields. Both excesses, and deficiencies of trace metals may, because crop composition is affected, influence animal production.
粘
发表于 2025-3-27 14:37:43
Trace Metals in Agriculture,hibit trace element deficiencies which have to be corrected by applications, either to the land or directly to the crop, of appropriate chemicals in order to achieve satisfactory yields. Both excesses, and deficiencies of trace metals may, because crop composition is affected, influence animal production.
小卷发
发表于 2025-3-27 18:40:55
https://doi.org/10.1007/978-94-015-3516-8rs for such metal deposits, frequently using biogeochemical techniques, are a part of our history. These cases of natural ‘pollution’ are, however, relatively localized, and it was not until the recent era of industrialization that widespread contaminations by heavy metals (and other classes of pollutants as well) have occurred.
运动的我
发表于 2025-3-28 00:42:08
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无能力
发表于 2025-3-28 03:19:51
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nauseate
发表于 2025-3-28 08:27:45
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neoplasm
发表于 2025-3-28 14:01:44
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