Hippocampus 发表于 2025-3-25 04:42:31
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Anne-Maria Aho,Jane Sinclair years been liberally treated with manures and fertilizers supplying mainly nitrogen, phosphorus, and potassium, along with calcium and sometimes magnesium where there is a special need for either of the latter two elements. Although the advantages of the liberal use of nutrients normally outway the宽容 发表于 2025-3-25 12:47:14
John K. Tarus,Zhendong Niuland, or in depressions, this may enhance the development of temporary reducing conditions in the soil. This may result in the loss, through denitrification, of nitrogen that would otherwise be available to the crop. Another example is the application of organic materials to the soil. When applied a同步左右 发表于 2025-3-25 16:57:02
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years been liberally treated with manures and fertilizers supplying mainly nitrogen, phosphorus, and potassium, along with calcium and sometimes magnesium where there is a special need for either of the latter two elements. Although the advantages of the liberal use of nutrients normally outway the遵循的规范 发表于 2025-3-26 00:20:27
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http://reply.papertrans.cn/59/5829/582809/582809_29.png笨拙的你 发表于 2025-3-26 17:42:26
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