Effect of Aquasorb on the Planting Survival and Growth of ‘Lyuling’ Walnut(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2014年17期

Page:

10-15,16

Research Field:

Publishing date:

Info

Title:

Effect of Aquasorb on the Planting Survival and Growth of ‘Lyuling’ Walnut

Author(s):

ZHANG Ling¹; 2; SHEN Nan-nan¹; 2; LI Mei-mei¹; 2; LI Bao-guo¹; 2; QI Guo-hui¹; 2

1.College of Forestry,Agricultural University of Hebei,Baoding,Hebei 071000;?

2.The Center of Walnut Engineering Technology of Hebei,Lincheng,Hebei 054300

Keywords:

walnut;  aquasorb;  survival rate;  growth

PACS:

S664.1

DOI:

-

Abstract:

Grade one grafted seedlings of ‘Lyuling’ walnut were used as material,the effect of aquasorb applying to different part of walnut and different quantity amounts on the survival and growth of walnut were studied,in order to increase the planting survival rate of walnut in drought area.The results showed that the walnut seedlings survival rates of applying 35 g L type aquasorb each plant to the bottom,to the middle and bottom and to the bottom,middle,upper part of the seedling were 100%,100% and 96.67% respectively.The planting survival rates of the three application positions of XL type aquasorb were 100%,that of the control was 90%,and those of all the aquasorb treatments were significantly higher than that of the control; in May,the young walnut plant total shoot lengths of the three treatments by applying L type aquasorb were 29.11 cm,30.65 cm and 24.12 cm respectively and those of by applying XL type aquasorb were 29.14 cm,23.80 cm and 30.43 cm respectively,that of control was 30.70 cm; in October,the young walnut plant total shoot lengths of the three treatments by applying L type aquasorb were 76.50 cm,8.40 cm,73.31 cm respectively,those of by applying XL type were 85.70 cm,67.14 cm,70.16 cm,that of the control was 87.14 cm.The root amount in 0～20 cm soil layer of applied XL type aquasorb to the bottom,middle,upper part of the seedling was 3.33 roots which was the largest,that of in 20～40 cm soil layer of applied L type aquasorb to the middle and bottom was 5.67 roots which was the largest,the root amounts of control in the two soil layer were 2.33 roots and 1.67 roots respectively.When the aquasorb application amounts were 15 g,25 g,35 g per plant,the walnut survival rates were 100%,and the survival rates of applying 45 g L type and XL type aquasorb were 100%,96.67% respectively,that of the control was 93.33%,the survival rate of all the treatments were higher than that of the control.In the range of aquasorb amounts,the young walnut plant total shoot lengths increased by L type aquasorb application amounts increased,the young walnut plant total shoot lengths decreased when the XL type aquasorb application amount reached to 45 g,in October,the young walnut plant total shoot lengths decreased by XL type aquasorb application amounts increased; the largest root amounts in 0～20 cm,20~40 cm,40~60 cm soil layer of applied XL type aquasorb 45 g,35 g,15 g,which were 5.67 roots,5.33 roots,1.33 roots respectively,and those of the control were 2.33 roots,1.67 roots,1.00 root.In the three soil layer of each treatments,roots with diameter <2 mm were the most,and roots with diameter 2~5 mm were the least; after applied aquasorb,the soil moisture contents increased.

References:

［1］郭素萍,李保国,赵健健,等.‘绿岭’核桃开花特性及石硫合剂疏花技术研究［J］.林业实用技术,2012(11):10-12.

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