覆膜和滴灌湿润比对甘薯土壤水热及其生长的影响

胡英杰; 张友良; 冯绍元; 王凤新

引用本文:	胡英杰,张友良,冯绍元,等.覆膜和滴灌湿润比对甘薯土壤水热及其生长的影响[J].灌溉排水学报,0,():-.
	HU Yingjie,ZHANG Youliang,FENG Shaoyuan,et al.覆膜和滴灌湿润比对甘薯土壤水热及其生长的影响[J].灌溉排水学报,0,():-.

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覆膜和滴灌湿润比对甘薯土壤水热及其生长的影响
胡英杰,张友良,冯绍元,等
1.扬州大学水利科学与工程学院;2.中国农业大学中国农业水土问题研究中心

摘要:

【目的】为了探究不同颜色覆膜和滴灌湿润比对土壤温度、土壤含水率、甘薯生长发育、产量及品质的影响,为山东日照地区甘薯种植提供理论依据。【方法】采用田间小区试验,设置三种不同覆膜处理：黑色膜(BM)、透明膜(TM)和不覆膜(NM)。设置三个滴灌湿润比处理：不灌溉(P0)、30%湿润比(P1)、60%湿润比(P2),共9个处理。【结果】研究结果表明：在相同湿润比条件下,覆膜处理可以显著提高甘薯前期土壤温度,在相同覆膜条件下,P2处理的土壤温度变化幅度小于P1处理和P0处理。TM处理在生育前期可以增加土壤含水率,覆膜在多雨季节可以增加地表径流,降低土壤含水率。在相同湿润比条件下,BM处理产量高于NM处理和TM处理,在相同覆膜条件下,P1处理的产量最高。覆膜和滴灌湿润比可以显著影响甘薯的茎粗、蔓长。覆膜可以显著提高甘薯根干物质量和地上干物质量。覆膜和湿润比对甘薯品质没有显著影响。BM处理对甘薯增产效果最为明显。【结论】在本试验条件下,BMP1处理的产量是最高的。

关键词: 甘薯；覆膜；土壤水热；品质

DOI：

分类号:S532

基金项目:江苏省自然科学基金青年(BK20180929)；国家自然科学基金青年(51809225)；中国博士后科学基金特别资助项目(2020T130559)；中国博士后科学基金面上资助项目(2019M651977)。

Effects of film mulch and soil wetted percentages on soil water and heat and sweet potato growth under drip irrigation

HU Yingjie¹, ZHANG Youliang^1,2,3,2, FENG Shaoyuan¹, WANG Fengxin³

1.College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou;2.China;3.Center for Agricultural Water Research in China,China Agricultural University

Abstract:

【Objective】To investigate the effects of different colors of mulch film and drip irrigation soil wetted percentage on soil temperature, soil moisture content, sweet potato growth and development, yield and quality, and to provide a theoretical basis for sweet potato cultivation in Rizhao, Shandong Province. 【Method】The field experiment was conducted with three different mulch treatments: black film (BM), transparent film (TM) and no film (NM). Three drip irrigation soil wetted percentage treatments were set up: no irrigation (P0), 30% wetting ratio (P1), and 60% wetting ratio (P2), for a total of nine treatments. 【Result】The results showed that the mulch treatment could significantly increase the soil temperature of sweet potato in the early stage under the same soil wetted percentages conditions, and the soil temperature change of P2 treatment was less than that of P1 treatment and P0 treatment under the same mulch conditions. TM treatment could increase the soil moisture content in the early stage of fertility, and mulch could increase the surface runoff and reduce the soil water content in the rainy season. Under the same soil wetted percentages condition, BM treatment yielded higher than NM and TM treatments, and P1 treatment had the highest yield under the same mulching condition. Mulching and drip irrigation wetness ratio could significantly affect the stem thickness and vine length of sweet potato. Mulching could significantly increase the root dry matter quality and aboveground dry matter quality of sweet potato. The BM treatment had the most significant effect on sweet potato yield. 【Conclusion】The yield of BMP1 treatment is the highest under the conditions of this experiment.

Key words: sweet potato; film mulch; soil water and heat; quality