摘要
对宁夏中部干旱带旱地马铃薯覆膜种植技术进行了研究,结果表明:地膜覆盖种植较露地种植平均缩短马铃薯出苗历时10.2 d,提高出苗率9.64%,增强植株长势,提高马铃薯产量36.95%,增加产值36.66%,水分生产效率提高28.18%,建议在生产中推广应用;地膜的选择上,在不补灌条件下黑色地膜覆盖在增强植株长势、提高商品薯率、提高水分生产效率、增加产值提升效益上优于白色地膜,在补灌条件下应选择白色地膜覆盖;在覆膜时间上应选择早春覆膜,播种期覆膜虽然在植株长势、产量等方面优于露地种植,但由于覆膜增加费用成本、降低商品薯率的原因,出现增产减收的现象,效益降低1 272元/hm2。
A study on dry-land potato film mulching cultivation technology in arid area of central Ningxia was carried out.The results showed that potato under film mulching cultivation technology had advantages than those of open soil in seedling emergence period（10.2 days shorter）, seedling rate（9.64% higher）, output（36.95% higher）, output value（36.66% higher）and water use efficiency（28.18% higher）, and thus it is recommended to expand the usage in production. In choosing films,when irrigation is not needed, black films are better than white ones due to its advantages in seeds growth, commodity potato rate, water use efficiency and output value, and vice versa. It is advised to mulch films in early spring. Mulch films during sowing period can have the advantages in seeds growth and output than those without films; however, the extra expenditure and lower commodity potato rate will result in a loss of 1 272 yuan/hm2 in economical return.
出处
《宁夏农林科技》
2015年第12期9-10,17,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
马铃薯
白色地膜
黑色地膜
商品薯率
效益
中部干旱带
Potato
white films
Black films
Commodity potato rate
Economical return
Arid area in central
