1.4.4 石灰性材料同无机肥料混合试验方案德意志联邦共和国所进行的研究证明,适于种植蔬菜和花卉栽培用的泥炭多数具有较低pH值和较高的营养元素含量。这两个指标相互关联的,在适宜的pH值下植物对营养元素高浓度不敏感。在营养时期为使pH值提高到适宜水平必须对泥炭基质进行补充中和。要保持石灰一定剂量水平必须根据钙的淋溶损失,植物对营养元素带走量和无机肥料产生相应的酸 1.4.4 Mixture of calcareous materials with inorganic fertilizers The study carried out by the Federal Republic of Germany shows that most of the peat suitable for growing vegetables and flowers have a lower pH value and a higher nutrient content. The two indicators are interrelated and plants are insensitive to high nutrient concentrations at the appropriate pH. The peat matrix must be replenished and neutralized during the nutrition period in order to raise the pH to a suitable level. To maintain a certain dose level of lime must be based on the leaching loss of calcium, plants take away the amount of nutrients and inorganic fertilizers produce the corresponding acid