摘要
选用当地主推品种黑美人为试材,在水肥一体化的基础上,研究了滴灌管不同埋深对土壤盐度、水分和西瓜根系分布的影响以及不同施肥处理对土壤理化性状和西瓜生产的影响。结果表明:将设施大棚的滴灌管埋深控制在10~20 cm,配合施用沼气渣30 t/hm^(2)和土壤改良剂7.5 kg/hm^(2)(FT3),不仅可以降低土壤盐度、改善西瓜根系分布、降低土壤容重、提高土壤有机质含量、降低西瓜枯萎病发病率,还能提高西瓜产量和产值,利润达6691.63元/667m^(2),投入产出比达2.48。
In order to explore the soil improvement technology for watermelon continuous cropping in facility cultivation,this paper has studied the effects of underground depths of drip irrigation pipes on soil salinity and moisture and watermelon root distribution,and the effects of different basal fertilizer application methods on soil physicochemical characteristics and watermelon production by using the grafted seedlings of "Black Beauty" as material.The results has showed that on the basis of conventional detoxification and fertilization,controlling the buried depth of drip irrigation pipes at 10-20 cm in greenhouse,combined with the application of biogas residue 30 t/hm^(2) and commercial soil conditioner 7.5 kg/hm^(2) before tillage,not only has effectively reduced the soil salinity,improved the root distribution of watermelon,reduced soil bulk density,increased soil organic matter content,saved fertilizer and water,and reduced the occurrence of watermelon Fusarium wilt,but also has effectively increased the yield and output value of watermelon,and obtained a net profit of 10.04×10^(4) yuan/hm^(2) with a 2.48 input-output ratio.
作者
徐敏
朱旺冲
谢宜芝
李长春
李飞
唐利忠
XU Min;ZHU Wang-chong;XIE Yi-zhi;LI Chang-chun;LI Fei;TANG Li-zhong(Yongzhou Institute of Agricultural Sciences,Yongzhou 425100,PRC;Yongzhou Changqingteng Green Engineering Co.,Ltd,Yongzhou 425100,PRC)
出处
《湖南农业科学》
2022年第2期32-35,共4页
Hunan Agricultural Sciences
关键词
西瓜
设施栽培
连作
滴灌管埋深
土壤改良
watermelon
facility cultivation
continuous cropping
buried depth of drip irrigation pipe
soil improvement
