论文部分内容阅读
1 材料与方法1 .1 材料降解膜 7种 Ａ - 1号秦丰 2号、Ｂ - 2号秦丰 3号、Ｃ - 3号北 - 1、Ｄ - 4号北 - 2、Ｅ - 8号克瑞特 (阿瓦提 )、Ｆ -河南厂家提供的非银光降解膜、Ｇ -银光降解膜 ,ＣＫ -普通降解膜。规格 (1 )地膜宽度 70 0ｍｍ ;(2 )地膜厚度 0 .0 0 8ｍｍ。供?
MATERIALS AND METHODS MATERIALS AND METHODS Materials Degradation Membrane Seven kinds of A - 1 Qinfeng 2, B - 2 Qinfeng 3, C - 3 North - 1, D - 4 North - 2, E - 8 Cretati (Awati), F - non-silver photodegradable film provided by Henan manufacturers, G-silver photodegradable film, CK - general degradation film. Specifications (1) Film width 70 0mm; (2) Film thickness 0. 0 0 8mm. for?