Effect of Covering Grass Around Young Pear Tree on Rhizosphere Soil Water Content in Sandy Pear Sapling(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Covering Grass Around Young Pear Tree on Rhizosphere Soil Water Content in Sandy Pear Sapling

Author(s):: WANG Wen¹; GE Hong-yuan¹; ZHEN Wei-ling²; ZHAI Yu-xing¹; 1.Sidalong Forest Farm of Zhangye,Zhangye,Gansu 734000;
2.Zhangye Academy of Forestry, Zhangye,Gansu 734000

Abstract:: Taking ‘Hongzaosu’ pear early planting young tree as test material,with soil texture、covering grass species and covering grass quantity as index, a three factor and three level orthogonal experiment was designed to study the water retention treatments covering with grass around young pear tree in sand orchard with young ‘zaosu’ pear,which provided some useful information for planting,water saving and fertilizing measures in sand orchard.The results showed that,covering grass around tree had a positive role to hold moisture of 0-60 cm soil to 50 cm region around the trunk.the rhizosphere soil water content was closed and had not significant difference,which covered sophora alopecuroides,medicago sativa and mixed grass with 2.5,5.0,7.5 kg of single plant around tree.The 16th day after irrigation on August 11, 2012, soil water content was 6.23% in 0-60 cm soil, young pear tress to grow well,may continue to extend the irrigation interval, which is influence by covering grass around tree; the soil water content was 20-40 cm>40-60 cm>0-20 cm of 3 soil after irrigation the 70th day,this distribution pattern in favour of young trees root demand for water; on production,covering sophora alopecuroides and mixed grass with 5.0 kg around tree would have the effect of retain rhizosphere moisture of young pear tree in sandy soil.

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Last Update: 2014-12-10