摘要
本试验在梨树行间种植长柔毛野豌豆(Vicia villosa Roth.)。试验组为处理1:长柔毛野豌豆生长开花期直接翻耕,处理2:在长柔毛野豌豆豆荚成熟后刈割覆盖;对照组为处理3:自然生草,处理4:清耕。研究不同生草方式对果园土壤肥力的影响。结果表明:梨树行间生草不同处理土壤温度变化趋势相近,不同处理方式土层土壤温度存在差异,在0~20cm土层,处理2土壤温度变化幅度比其他处理方式较平缓,能缓解土壤温度变化。梨树行间生草不同处理土壤含水量、不同土层深度土壤含水量变化趋势不同,处理2在不同土层土壤平均含水量最高,对水分的涵养效果较好,从而能更有效地达到生草后保水保墒效果。梨树行间采用不同的生草方式,不同土层土壤养分变化不同,随着土层深度的增加,土壤养分含量逐渐降低。处理2在0~20cm土层有机质增加了8.77%,速效氮、速效磷、速效钾增加了9.53%、41.68%、25.56%,全氮、全磷、全钾增加了28.8%、10.34%、20.33%。因此,采用生草+覆盖能有效发挥果园生草的作用。
This experiment planted Vicia villosa Roth.between the rows of pear trees.The experimental group was treatment 1:Vicia villosa was directly plowed during growth and flowering;Treatment 2:Vicia villosa pods Mowing and covering after maturity.The control group was treatment 3:natural grass,treatment 4:clear ploughing.Study the effect of different grass growing methods on the fertility of orchard soil.The results showed that the soil temperature change trend of different treatments of pear tree interrow grass was similar,and the soil temperature of different treatments was different.In the 0~20cm soil layer,the range of soil temperature change of treatment 2 was gentler than other treatments and could be alleviated.Soil temperature changes.The soil water content of different treatments of pear tree interrow grass,and the change trend of soil content in different soil depths are different.Treatment 2 has the highest average soil water content in different soil layers,which has a better effect on water conservation,so that it can achieve more effective growth.The effect of retaining water and moisture after grass.Different grass growing methods are used between pear trees,and soil nutrients in different soil layers change differently.As the depth of the soil layer increases,the soil nutrient content gradually decreases.In treatment 2,the organic matter in the 0~20cm soil layer increased by 8.77%,the available nitrogen,phosphorus and potassium increased by 9.53%,41.68%,and 25.56%,and the total nitrogen,total phosphorus,and total potassium increased by 28.8%,10.34%,and 20.33%.Therefore,the use of grass+mulch can effectively play the role of grass growing in the orchard.
作者
吉爽秋
李旭娇
张弛
杨梦宇
张琦
Ji Shuangqiu;Li Xujiao;Zhang Chi;Yang Mengyu;Zhang Qi(College of Plant Science,Tarim University,Alar 843300,China;Production Engineering Laboratory of Characteristic Fruit Trees in Southern Xinjiang,Xinjiang Production and Construction Corps,Alar 843300,China;Key Laboratory of Biological Resources Conservation and Utilization,Tarim Basin,Xinjiang Production and Construction Corps,Alar 843300,China)
出处
《草学》
2021年第6期58-65,70,共9页
Journal of Grassland and Forage Science
基金
兵团民生实事“农业技术辐射带动”项目(MSSS201903)资助。
关键词
长柔毛野豌豆
生草
处理方式
土壤养分
Vicia villosa Roth
grass growth
treatment method
soil nutrient
