摘要
试验研究稻草和地膜覆盖罗汉果园后土壤水分、温度、养分和空气温湿度等生态因子的变化及其对罗汉果产量和品质的影响表明，稻草覆盖有利于保持土壤水分，调节土壤温度变化，改善土壤理化性状，抑制杂草生长，提高果品产量和品质。在高温季节，稻草覆盖能使0～20cm土层土壤温度降低0．3～5．7℃，棚内空气温度降低1．2℃，提高土壤含水量和空气相对湿度，是值得在罗汉果园中运用的栽培措施；在地膜覆盖条件下，7月份棚下空气温度为34．2℃，7月、8月地表土壤温度分别达到35．2℃和34．3℃，超过罗汉果生长的温度适应范围．地膜覆盖不适于在高温季节使用。
The effect of straw mulching and plastic-film covering on soil water, temperature, fertility, and air temperature and relative humidity as well as on yield and quality of Siraitia grosevenorii was studied. The results show a positive effect of straw mulching on soil water, temperature regulation, soil physicochemical property improvement, weed control, fruit yield and quality. During high temperatures and dry seasons, straw mulching decreases （0 -20cm） soil temperature by 0.3 -5.7℃ , decreases air temperature by 1.2℃, and increases soil water content and air relative humidity. Thus straw mulching application is absolutely beneficial in S. grosevenorii orchard cultivation. Under plastic-film mulching, orchard air temperature （in July） and soil temperature （ in July and August） reach 34.2 ℃ , 35.2 ℃ and 34.3℃ respectively, exceeding plant growth temperature range. Therefore, plastic film mulching should not to be applied during high temperature seasons.
出处
《中国生态农业学报》
CAS
CSCD
2008年第2期387-390,共4页
Chinese Journal of Eco-Agriculture
基金
广西科学青年基金(桂科青0447014)
广西科学研究与技术开发计划项目(桂科能0443001-10)资助
关键词
罗汉果园
地膜覆盖
稻草覆盖
生态效应
产量
品质
Siraitia grosevenorii orchard, Plastic-film mulching, Straw mulching, Ecological effect, Yield, Quality
