关键词: 地膜覆盖, 地膜覆盖, 土壤理化性状, 木薯, 产量

Abstract:

We tested and analyzed some physical and chemical indicators such as bulk density, total porosity, aeration porosity, capillary porosity, water content, pH value and conductivity in 6 different ratio matrices in the experiment, in order to reduce the dependence on peat resources and the production costs in lily soilless culture. We also analyzed the main agronomical characters of cut lily which were cultured in 6 different matrices. The results showed that in the suitable range for the lily’s growth, the smaller the matrix bulk density and the pH value were, as well as the larger aeration porosity and capillary porosity were, the better the lily grew. In this experiment the two ratio T1(peat: perlite=3:1) and T3(peat: perlite: mushroom residue=2:3:2) were the best formula matrix for lily cultivation; CK(pure peat) can influence on the stem height in the early age and we consider that the peat was a non-renewable scarce resource in short term, so it was not suitable to be the matrix for cut lily; T5(peat: vermiculite: rice hulls=3:5:2) ratio matrix can not be used in cut lily production.