基于欧李枝条的农林废弃物基质对番茄生长发育的影响

为了解决欧李枝条等农林废弃物农业环境污染和资源循环利用问题,以欧李枝条、玉米秸秆、牛粪沼渣和河沙为原料,将基于欧李枝条复配的6种基质采用随机区组排列的方法,研究了复配基质的理化性质、保温、保水、保肥性能及其对番茄生长发育的影响,并对所有指标进行了主成分分析。结果表明:以欧李枝条∶玉米秸秆∶牛粪沼渣∶河沙=1∶1∶1∶1比例为基础的复配基质C1具有较好的保温、保水及保肥性能,并且能够显著促进番茄的生长发育。主成分分析表明,C1是能够促进番茄植株生长发育和维持基质质量的最佳配方,该研究为利用农林废弃物开发新型蔬菜栽培基质提供参考依据。

Effects of Substrate of Agri-forestry Wastes Based on Cerasus humilis Branches on Growth and Development of Tomato

To solve the problems of environmental pollution and resource recycling of agricultural and forestry residues like branches of Crasus humilis, matching the Cerasus humilis branches residue of 6 kinds of substrates was determined by field random arrangement,researches were carried out on the physic-chemical characters,water and heat retaining,nutrition retaining of compound substrate and the effects on the growth of tomatoes,taking Crasus humilis branches,corn straw,cow-dung biogas residue,and river sand as raw materials.Through PCA on all the index,the results showed that compound substrate C1 at the ratio of Crasus humilis branches:corn straw:cow-dung biogas residue∶river sand=1∶1∶1∶1 had better performance on water and heat retaining,nutrition retaining and promoting the growth of tomatoes.C1 was the best proportion for promoting the growth of tomatoes and maintaining the quality of substrate,and provided reference for researching new-type substrate with agricultural and forestry residues.