| 西北地区马铃薯膜上覆土最佳土层厚度试验 |
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| 引用本文： | 杨来胜,王程,何培洪,安永学. 西北地区马铃薯膜上覆土最佳土层厚度试验[J]. 农学学报, 2016, 6(7): 60-63. DOI: 10.3969/j.issn.1007-7774.2016.07.012 |
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| 作者姓名： | 杨来胜 王程 何培洪 安永学 |
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| 作者单位： | 兰州市农科院 兰州市农业科技研究推广中心,兰州市农科院 兰州市农业科技研究推广中心,兰州市农科院 兰州市农业科技研究推广中心,兰州市红古区经作站 |
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| 基金项目： | ：甘肃省兰州市科技攻关项目“马铃薯高垄膜上覆土栽培技术研究与推广”(2012-g171-1)；甘肃省财政农业重点科技推广项目“马铃薯高垄膜上压土栽培新技术研究推广与新品种引进扩繁”(2013-304-14)。 |
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| 摘 要： | 马铃薯高垄膜上覆土自然顶膜出苗栽培技术为近年来推广的一项马铃薯栽培新技术，具有自然出苗率高、产量高、杂草少等优点，其中膜上覆土的最佳土层厚度是影响马铃薯自然顶膜出苗的关键因素之一。本试验设0、1、3、5、7 cm 5个覆土厚度处理，结果表明： 3cm、5cm两个处理为最佳覆土厚度，3cm、5 cm两个处理采用的覆土厚度更有利于顶膜出苗，自然顶膜出苗率分别达到95.2%、98%，出苗整齐度分别为91.7%、91.4%，较对照产量分别增加了28.83%、27.72%，商品率分别提高了47.77%、49.64%，膜下杂草分别减少了44.74%、84.21%。同时，地膜回收也更为彻底。
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| 关 键 词： | 甜菜 甜菜 品质指数 施肥模型 |
| 收稿时间： | 2016-03-02 |
| 修稿时间： | 2016-03-26 |
Optimum Thickness of Covering Soil over Plastic Films Technology of Potato Cultivation in Northwest China |
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| Abstract: | High- ridge and soil cover on the plastic films for potato planting is a new potato cultivation technique popularized in these years, it has the advantages of high mergence rate, high yield and less weeds. The thickness of soil over the films is one of the key factors for natural emergence of potato. Five thicknesses (0, 1, 3, 5 and 7 cm) were set up to study the optimum thickness of covering soil. The results showed that the optimum treatments were 3 cm and 5 cm, which had the emergence uniformity of 91.7% and 91.4%, the yield increase of 28.83% and 27.72% over that of CK, the commodity rate improvement of 47.77% and 49.64%, and a decrease of weeds under the films of 44.74% and 84.21% respectively. Meanwhile, the recovery of plastic films was more completely. |
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| Keywords: | Potato Cultivated under plastic films Covering Soil over plastic films Optimum thickness |
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