Effects of different mulching on soil physical properties and growth of tree in apple orchard of cold region
In order to explore the mulching technology suitable for young tree growth in rain-fed apple orchard of cold region.The main apple variety'Longfeng'was used as the test material with the treatments by mulching straw,corn stalk,edible fungi residue and horticultural fabric for two consecutive years,the clean tillage was used as control to study the effects of soil temperature,water content,bulk density,porosity,and the growth of young tree with different treatments.The results showed that,mulching mainly affected surface soil temperature.The soil temperature was significantly reduced with the treatment of straw mulching.The treatment of corn stalk and edible fungi residue can stabilize the soil temperature.Mulching treatments significantly increased soil water content.The best treatment is edible fungi residue mulching.During the period from May to October,the average soil water content increased by 40.5％compared with the control.Mulching with organic materials reduced soil bulk density and increased soil porosity,the difference was significant at fruit maturity compared with the control.The best treatment is corn stalk mulching.Mulching treatments promoted the growth of'Longfeng'young trees,increased the length and thickness of spring shoots and annual branches,increased the trunk diameter,and promoted the growth of leaves.Comprehensively,horticultural fabric mulching had the best effect on promoting tree growth.Corn stalk and edible fungi residue mulching had the best effect on improving soil environment,and can also promote tree growth.
NETL
NSTL
万方数据
