摘要
为研究全生物降解地膜覆盖对南疆花生产量及土壤理化性质的影响,采用PBAT(聚己二酸/对苯二甲酸丁二酯)型聚酯全生物降解地膜(简称:降解膜)覆盖为处理、普通聚乙烯PE地膜覆盖为对照(CK),分析降解膜覆盖对花生试验区土壤温度、水分、养分及产量等相关指标的影响.结果 显示:①降解膜的破损率随花生生育进程表现为6-8月较小(3%~14%),到10月收获期显著增大(29%).②降解膜处理的花生产量与CK无显著差异.③花生生育期内,降解膜覆盖0~30 cm平均土壤温度较CK高0.35℃,其中,膜下5cm、15cm和25cm分别较CK高0.38℃、0.39℃和0.27℃,但两处理间的平均土壤温度差异均不显著.降解膜覆盖0~30 cm平均土壤含水率较CK高2.08%,其中,膜下5 cm和25 cm分别较CK高3.39%和4.74%(p<0.05),而膜下15 cm的较CK低1.89%(p<0.05).④降解膜覆盖对花生不同生育时期(6月和10月)、不同土层(0~20 cm和20~40cm)的土壤速效氮磷钾养分、盐分、土壤容重以及土壤pH均无显著影响.因此,本研究认为,全生物降解地膜替代普通PE地膜应用于南疆花生栽培生产是可行的.
To study the effect of fully biodegradable mulch film on peanut yield and soil physical and chemical properties in southern Xinjiang, China, PBAT(butylene adipate-co-terephthalate) polyester fully biodegradable mulch film(brief as: biodegradable mulch film) and ordinary polyethylene PE mulch film(CK) were chosen as treatments for analysis of effects of degradable mulch film on soil temperature, moisture, nutrients, peanut yield and other relevant indicators. The results showed that: ① With the growth process of peanut, the degradation rate of biodegradable mulch film was light during June and August(3%~14%) and significantly increased in October(29%). ② There were no significant differences between the yield of peanut with biodegradable mulch film and CK. ③ During the peanut growth period, the average soil temperature under the biodegradable mulch film treatment was 0.35℃ higher than CK in 0~30 cm soil layer. Among them, the average soil temperature of the biodegradable mulch film under 5 cm, 15 cm and 25 cm were higher than CK 0.38℃, 0.39℃ and 0.27℃ respectively, but there was no significant between two treatments in average soil temperature. The average soil moisture content of the biodegradable mulch film at 0~30 cm was 2.08% higher than that of CK, among which 5 cm and 25 cm under the biodegradable mulch film were 3.39% and 4.74% higher than CK respectively(p<0.05), while 15 cm under the biodegradable mulch film was 1.89% lower than CK(p<0.05). ④ During the peanut growth period, there were no significant differences between the biodegradable mulch film and CK treatments in soil available N, P, K, soil total salt and soil pH in 0~20 cm and 20~40 cm soil layers. ⑤ The biodegradable mulch film hadno significant effect on soil bulk density of different peanut growth periods(July and October) and different soil layers(0~20 cm and 20~40 cm). Therefore, this study showed that it is feasible to replace PE mulch film with biodegradable mulch film for peanut cultivation and production in southern Xinj
作者
王斌
万艳芳
王金鑫
孙九胜
槐国龙
吕彩霞
崔磊
WANG Bin;WAN Yan-fang;WANG Jin-Un;SUN Jiu-sheng;HUAI Guo-long;LUCai-xia;CUI Lei(Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China)
出处
《花生学报》
北大核心
2019年第2期38-43,56,共7页
Journal of Peanut Science
基金
新疆自治区重点研发(2016B02017-4,2018B01006-1)
国家自然科学基金(41661075)
天山青年计划(2017Q006)
关键词
花生
全生物降解地膜
产量
土壤理化性质
peanut
fully biodegradable mulch film
yield
soil physical and chemical properties
