Effects of Different Types of Agricultural Film on Soil Nutrients and Chilli Yield in Greenhouse

doi:10.11924/j.issn.1000-6850.casb2023-0682

Abstract

Abstract:

In order to study the residual status of agricultural film used in greenhouses and analyze the effects of different types of agricultural films on soil nutrients and chilli yield, this study set the no mulching treatment as the control (P₁), and six treatments covered with 0.01 mm black PE film (P₂), 0.006 mm black PBAT film (P₃), 0.008 mm black PBAT film (P₄), 0.01 mm black PBAT65%+PPC35% film (P₅), and 0.01 mm white PBAT65%+PPC35% film (P₆), to analyze chilli yield, residual amount of agricultural film and soil nutrients. The results showed that using different types of agricultural film could increase chilli yield, improve soil moisture conditions, and the residual amount of agricultural film and its impact on soil nutrients differed from different types of agricultural film. Compared to the control, the content of available potassium increased in all film covering treatments; the content of soil available phosphorus increased in P₂, P₃, and P₄ treatments, while soil available phosphorus content decreased in P₅ and P₆ treatments. The use of different types of agricultural mulching treatments can increase the yield and fresh weight of chilli, and the effect of 0.006 mm black PBAT film was most significant; The 0.01 mm white PBAT65%+PPC35% film had the highest residual amount, while the 0.01 mm black PE film had the highest degradation amount and degradation rate. The results of principal component analysis indicated that the degradation rate of agricultural film, ammonium nitrogen, and available phosphorus were the main factors affecting the yield of chilli. Overall, the use of 0.006 mm black PBAT film in greenhouses is more conducive to increasing chilli yield and soil nutrient content, making it an optional material for vegetable production in greenhouses.

Key words: biodegradable membrane, soil nutrients, degradation rate, yield

ZHOU Tianmei, LU Jing, LI Menglin, ZHAI Weijie, SHI Linlin, LU Changying, DONG linlin. Effects of Different Types of Agricultural Film on Soil Nutrients and Chilli Yield in Greenhouse[J]. Chinese Agricultural Science Bulletin, 2024, 40(21): 61-68.

Figures/Tables 8

References 30

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处理编号	厚度	颜色	材质	农膜重量/(g/m²)
P₁	不覆膜
P₂	0.01 mm	黑色	PE膜	11.88
P₃	0.006 mm	黑色	PBAT膜	8.11
P₄	0.008 mm	黑色	PBAT膜	10.56
P₅	0.01 mm	黑色	PBAT65%+PPC35%膜	12.28
P₆	0.01 mm	白色	PBAT65%+PPC35%膜	12.85

处理编号	厚度	颜色	材质	农膜重量/(g/m²)
P₁	不覆膜
P₂	0.01 mm	黑色	PE膜	11.88
P₃	0.006 mm	黑色	PBAT膜	8.11
P₄	0.008 mm	黑色	PBAT膜	10.56
P₅	0.01 mm	黑色	PBAT65%+PPC35%膜	12.28
P₆	0.01 mm	白色	PBAT65%+PPC35%膜	12.85

处理	农膜类型	农膜残留量/(g/m²)	农膜降解量/(g/m²)	农膜降解率/%
P₂	0.01 mm黑色PE膜	4.36+0.14c	7.53+0.14a	63.33+2.32a
P₃	0.006 mm黑色PBAT膜	4.50+0.07c	3.61+0.07d	44.51+1.82c
P₄	0.008 mm黑色PBAT膜	5.95+0.22b	4.61+0.22c	43.63+4.14c
P₅	0.01 mm黑色PBAT65%+PPC35%膜	5.98+0.35b	6.31+0.35b	51.34+5.75b
P₆	0.01 mm白色PBAT65%+PPC35%膜	7.95+0.12a	4.90+0.12c	38.10+1.87d

处理	农膜类型	农膜残留量/(g/m²)	农膜降解量/(g/m²)	农膜降解率/%
P₂	0.01 mm黑色PE膜	4.36+0.14c	7.53+0.14a	63.33+2.32a
P₃	0.006 mm黑色PBAT膜	4.50+0.07c	3.61+0.07d	44.51+1.82c
P₄	0.008 mm黑色PBAT膜	5.95+0.22b	4.61+0.22c	43.63+4.14c
P₅	0.01 mm黑色PBAT65%+PPC35%膜	5.98+0.35b	6.31+0.35b	51.34+5.75b
P₆	0.01 mm白色PBAT65%+PPC35%膜	7.95+0.12a	4.90+0.12c	38.10+1.87d