全生物可降解地膜对茄子生长及土壤水分的影响

The Impact of Fully Biodegradable Mulch Film on Eggplant Growth and Soil Moisture

以“五星大苠茄”茄子品种为试材,采用普通PE地膜与5种可降解地膜对栽培茄子生长及土壤水分影响进行对比研究全生物降解膜对土壤水分、茄子生长的影响,分析茄子生育期全生物降解膜的拉伸强度和断裂伸长率的变化。结果表明,全生物降解膜的降解速度显著高于普通地膜,其中:白色全生物降解膜的降解速度快于黑色全生物降解膜。土壤含水量在茄子生长前期与普通地膜无差异,茄子产量与普通地膜差异不显著,但全生物降解膜的拉伸强度和断裂伸长率在茄子生育期显著低于普通地膜。全生物降解膜对茄子的株高、茎粗、含水量,以及产量的影响与普通地膜差异不显著,但对环境的友好作用日益凸显。因此,在试验区域以购于浙江家乐蜜园艺科技有限公司的全生物降解地膜黑膜替代普通塑料地膜是具有可行性的,但还需进一步验证。

This study used the eggplant variety"Wuxing Daming"as the experimental material to compare the effects of ordinary PE film and five types of biodegradable film on eggplant growth and soil moisture.The study analyzed the impact of fully biodegradable film on soil moisture and eggplant growth and examined the changes in tensile strength and elongation at break of the fully biodegradable film during the eggplant growth period.The results showed that the degradation rate of the fully biodegradable film was significantly higher than that of the ordinary film.Among them,the degradation rate of the white fully biodegradable film was faster than that of the black fully biodegradable film.The soil moisture content was not significantly different from the ordinary film in the early stage of eggplant growth.The yield of eggplant was not significantly different from the ordinary film,but the tensile strength and elongation at break of the fully biodegradable film were significantly lower during the eggplant growth period.The fully biodegradable film had no significant effect on the plant height,stem diameter,water content,and yield of eggplant compared to the ordinary film,but its environmental friendliness was increasingly prominent.Therefore,replacing ordinary plastic film with fully biodegradable mulch film,purchased from Zhejiang Jialemi Orchard Science and Technology Co.,Ltd.,in the experimental area is feasible,but further verification is needed.