| 杜少平,马忠明,薛亮.不同覆膜方式对旱砂田西瓜产量品质及土壤水分利用的影响[J].干旱地区农业研究,2010,28(6):122~128 |
| 不同覆膜方式对旱砂田西瓜产量品质及土壤水分利用的影响 |
| Effects of different approaches of plastic film mulching on yield, quality of watermelon and soil water utilization in gravel-mulched field |
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| DOI：10.7606/j.issn.1000-7601.2010.06.23 |
| 中文关键词: 砂田 西瓜 覆膜方式 土壤水分 |
| 英文关键词:gravel-mulched field watermelon plastic film mulching soil water |
| 基金项目:国家西瓜甜瓜产业技术体系土壤肥料岗位项目(nycytx-36-01-02-02) |
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| 中文摘要: |
| 为了进一步提高砂田的抗旱保墒效果及其生产效率,在黄土高原西北部地区对砂田西瓜不同覆膜方式进行了研究。试验设裸砂田(CK)、砂田+半覆膜(HM)、砂田+全覆膜(FM)和砂田+起垄覆膜(RM)4种栽培模式。试验结果表明:在西瓜生育前期全覆膜和起垄覆膜分别表现出了良好的保墒效果,0~40 cm土壤含水量较传统半覆膜提高了1.5个百分点左右,较裸砂田提高了2个百分点左右;1 m土壤贮水量全覆膜和起垄覆膜较半覆膜和裸砂田分别增加了5 mm和12 mm左右,但两种覆膜方式的保墒效果因外界环境条件而异。并且西瓜产量和品质均以全覆膜最优,其产量及可溶性糖含量分别比传统半覆膜提高26%和0.82%;全覆膜处理的产量水分利用率和糖水分利用率也最高,分别比半覆膜处理提高了32%和45%。 |
| 英文摘要: |
| Drought is a main influencing factor for the development of watermelon industry in gravel-mulched field.
In order to enhance the capacity of water preservation and drought resistance, to improve the water condition of plant
growth and to promote the production efficiency of watermelon on gravel-mulched field, trails were conducted to examine the effect of different approaches of plastic flm mulching on watermelon in the loess plateau of Northwest China in 2009. The trail comprised four treatments including only gravel-mulched field (CK)，half plastic film and gravel-mulched field
(HM), full plastic flm and gravel-mulched field (FM), and ridge-forming and plastic film mulching (RM). The results
indicated that FM and RM showed better water preservation than others, and the soil water content of FM and RM in-
creased by 1.5% and 2% respectively in contrast with HM and CK at the soil depth of 0~40 cm; The water storage of
1m soil layer of FM and RM increased by about 5 mm and 12 mm respectively in contrast with HM and CK. The FM was the best in all treatments for yield and quality of watermelon, and it increased yield and soluble sugar content by 26 % and 10% respectively, which was higher than that of the HM. The WUE for yield and sugar of the FM was also better than others, showing 32% and 45% respectively higher than those of the HM. |
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