摘要
为弄清膜下滴灌对烟田土壤含水率的影响,采用不同滴灌量与施氮量试验设计,研究了膜下滴灌对烟田土壤含水率的影响,并对其经济效益进行了分析。结果表明:烤烟膜下滴灌条件下,水分变化,0～20cm土层相对更活跃,20～40cm次之,40～60cm最稳定;移栽后84d,T11各土层土壤含水率均高于同土层其他处理;节水量为131.06～199.80mm,单株产量为133.43～154.04g;国民经济内部收益率、经济净现值和经济效益费用比分别为13.5%、907.7元/667m2和1.29,经济上合理可行,值得推广使用。
Different irrigation and nitrogen treatments were designed to explore the effects of mulch drip irrigation of tobaccos on the soil moisture content, and the related benefits were evaluated. The results showed that under mulch drip irrigation condition, the changes of soil water content in 0- 20 cm layer was the most active. 20-40 cm followed, 40-60 cm was stable. 84 days after transplanted, the soil content of T11 was more than the other treatments in each layer; The water saving content of mulch drip irrigation was 131.06-199.80 mm, the yield of single plant was 133.43-154.04 g, the calculated EIRR was 13.5-, the calculated ENPV was 907.7 Yuan per acreage, and the calculated EBCR was 1.29, from the economical angle, the project was reasonable.
出处
《贵州农业科学》
CAS
北大核心
2013年第1期45-47,共3页
Guizhou Agricultural Sciences
基金
中国烟草总公司贵州省公司科技项目专项(201020)
关键词
膜下滴灌
烤烟
土壤含水率
效益
节水
mulch drip irrigation
flue-cured and practicable. tobacco
soil moisture content
benefit
water-saving
