农学学报2016，Vol.6Issue(4)：66-69,4.
降解地膜过早破裂对玉米地土壤水分温度及产量的影响
Premature Fracture of Degradable Mulch on Soil Temperature, Moisture and Corn Yield
摘要
Abstract
Degradable mulch utilization is an important approach to solve agricultural"white pollution". The authors studied the effect of premature fracture of degradable mulch on soil temperature, moisture and corn yield. The results showed that premature fracture had different effects on soil temperature and moisture in different stages. The effect on soil temperature mainly reflected in seedling stage, the soil temperature of degradable mulching field decreased by 14.1% comparing with that of PE film mulching field in 25 cm soil layer. The effect on soil moisture mainly reflected in bell stage, soil moisture of degradable mulching decreased by 13.1%comparing with that of PE film in 100 cm soil layer. Crop parameters such as plant height, bald tip, ear rows, hundred kernel weight and yield of degradable mulch treatment were significantly lower under that of PE film treatment, which caused the yield reduction of 27.2%. Therefore, the premature fracture of degradable mulch affected soil temperature, moisture and yield significantly.关键词
黄土高原/降解膜/土壤温度/土壤水分/地膜玉米Key words
Loess Plateau/Degradable Mulch/Soil Temperature/Soil Moisture/Mulch Corn分类
农业科技引用本文复制引用
董立国,蔡进军,张源润,李生宝..降解地膜过早破裂对玉米地土壤水分温度及产量的影响[J].农学学报,2016,6(4):66-69,4.基金项目
宁夏农林科学院自主研发项目"宁南山区水土保持耕作措施对土壤关键因子的响应"(NKYJ-13-07) （NKYJ-13-07）
宁夏农林科学院自主研发项目"宁南山区典型水土保持措施下土壤水分和养分变化特征及机理研究"(NKYJ-15-19) （NKYJ-15-19）
国家外专局项目"生物降解膜在宁夏保护性农业中的应用"(20156400020)、宁夏环境保护科研项目"宁南山区农业废弃物减控与利用关键技术研究与示范"(20120803) （20156400020）
国家科技支撑计划课题"宁南山区脆弱生态系统恢复及可持续经营技术集成与示范"(2015BAC01B01) （2015BAC01B01）
宁夏科技攻关"宁南山区生态产业培育技术集成与示范"(2012ZZS50). （2012ZZS50）
