| 简介 |
Silicon dioxide precipitate for agricultural use. As chalking applies only or accompanying to this dust with any product phytosanitary and/or curative, by means of knapsack or by means of impellers of air, using particles among 1 and 100 micrometers, whereas it is mixed with earth, for his direct application on the land, in which a shovel or similar is scattered with, in sizes of particles of around between 200 and 300 micrometers, either to eliminate the humidity of the ground or to retain this one. |
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