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一个分别在玄武岩和花岗岩母质发育的砖红壤上进行的白云石石粉(简称石粉)盆、栽试验,按石粉4个不同细度和3个用量,同时设置白云石石灰3个不同用量共16个处理。1991—1993年的试验结果是:石粉4个细度上的3种不同用量处理对剑麻(H.11648)的生长量增加均有极显著的作用。施用石粉、石灰明显提高了土壤pH值,交换性钙镁含量增加,交换性酸和有机质含量则随石粉用量的增加而减少。石粉的施用对到麻叶片的矿质养分含量也有明显影响。
A dolomite stone powder (hereinafter referred to as “stone powder”) pot experiment carried out on brick red soil with basal and granite parent material development respectively was conducted. According to 4 different fineness and 3 dosages of stone powder, 3 different amounts of dolomite lime were set at the same time deal with. The results from 1991-1993 showed that three different treatments of four finenesses of stone powder had an extremely significant effect on the growth of sisal (H.11648). The application of stone powder and lime significantly increased the soil pH, the exchangeable calcium and magnesium content increased, while the exchangeable acid and organic matter content decreased with the increase of the amount of stone powder. The application of rock powder also has a significant effect on the mineral nutrient content of hemp leaves.