|Table of Contents|

Effects of Degradation Products of Light-degradable Film on Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年01期
Page:
103-107
Research Field:
Publishing date:

Info

Title:
Effects of Degradation Products of Light-degradable Film on Soybean
Author(s):
TANG Yong-jin1; 2;  LIU Jun-li1
1Agronomy College, Southwest University of Science and Technology, Mianyang 621010, China；
2Biomass Materials of Ministry of Education Engineering Center,Southwest University of Science and Technology,Mianyang 621010,China
Keywords:
Light-degradable film;  Degradation products;  Soil;  Soybean
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.01.0103
Abstract:
The effects of degradation products of light-degradable film on crop were researched to provide support for the development and popularization of polyethylene-based degradable mulching film theoretically. Taking 7×5, 4×5 and 1×5 cm2 scraps of light-degradable film, LLDPE and low molecular weight polyethylene (LMWPE) as 5 degradation products and 7,70,140,210,280 and 350 g?m-2?as amount of residue, and 0 g?m-2?as control, the effects of the degradation products on nutrient content in the soil during the middle growing period of soybean and agronomic traits of soybeans were investigated. The results were the following:（1）All the degradation products made pH level of the soil a litlle increase, but the content of organic matters, available N, P and K decrease during the middle growing period of soybean; (2) All the degradation products made the yield of soybeans higher than CK. Therefore, the degradation products can promote nutrient decomposed and absorbed in the soil and raise soybean yield.

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Last Update: 2015-04-13