摘要
研究了寒旱百合种植区地表覆草技术对土壤水热状况、理化性质、百合生长和产量的影响.采用随机区组设计,试验处理为露地、地表覆草、地膜覆盖,3次重复,共计 9个处理.结果表明,百合地表覆草技术可以明显改善土壤水热状况,提高土壤理化性质指标含量,增加百合产量.相对于露地处理,地表覆草处理表层土壤温度和含水量分别增加18.86%和 2.23个百分点,土壤有机质增加 0.31个百分点,碱解氮、速效磷、速效钾含量分别提高 18.12%,21.04%和10.41%,株高、茎粗、球横径、球纵径、单球质量和产量分别增加 8.26%、22.22%、16.55%、23.47%、32.83%和 35.07%.综上所述,在寒旱百合种植区,地表覆草技术是一项重要的田间管理措施.
Abstract
Effects of surface grass covering technology on soil water and heat conditions,physicochemical properties,lily growth,and yield in cold and dry lily planting areas were investigated.Using a randomized block design,experimental treatments were open field,surface grass covering,and plastic film covering,with 3 replicates for a total of 9 treatments.Results showed that surface grass cover-ing technology of lilies could significantly improve soil water and heat conditions,increase content of soil physical and chemical proper-ties indicators,and increase yield of lilies.Compared with open field treatment,surface grass covering treatment increased surface soil temperature and moisture content by 18.86%and 2.23 percentage points,soil organic matter by 0.31 percentage points,alkaline nitrogen,available phosphorus,and available potassium content by 18.12%,21.04%,and 10.41%,respectively.Plant height,stem diameter,ball horizontal diameter,ball vertical diameter,bulb weight,and yield increased by 8.26%,22.22%,16.55%,23.47%,32.83%,and 35.07%,respectively.In cold and drought lily planting areas,surface grass covering technology is an important field management measure.
维普
万方数据