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Assessment on Effect of New Plastic-film Mulching Ways on Overwintering of Amygdalus persica var.compressa in Northern Piedmont of the Tianshan Mountains(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年09
Page:
23-27
Research Field:
Publishing date:

Info

Title:
Assessment on Effect of New Plastic-film Mulching Ways on Overwintering of Amygdalus persica var.compressa in Northern Piedmont of the Tianshan Mountains
Author(s):
LI Yin-fang1; PAN Bo-rong1; Adil UBIR1; SHEN Qing-lin2; FANG Gui-juan2; LI Qi3; MA Hong-liang3; LI Xiang4
（1.Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi，Xinjiang 830011；2.Forest Bureau of Fukang City，Fukang，Xinjiang 831501；3.Meteorological Bureau of Fukang City，Fukang，Xinjiang 831501；4.Meteorological Bureau of Qitai County，Qitai，Xinjiang 831800)
Keywords:
Amygdalus persica var.compressa; overwintering; plastic film; recycle cotton; mulching; northern piedmont of the Tianshan Mountains
PACS:
S 662.1
DOI:
10.11937/bfyy.201509006
Abstract:
With 12-year-old full productive gardern of Amygdalus persica var. compressa as research object，the ways of single-layer and bilayer plastic film and single-layer recycle cotton mulched for overwintering of Amygdalus persica var. compressa trees were compared so as to protect the trees against the extremely minimum temperature of -37℃ and long- term low temperature in Fukang City of Xinjiang in winter.The results showed that the heat preservation effect of bilayer plastic film was better than that of single-layer plastic film and single-layer recycle cotton.The temperatures under the bilayer plastic film，single-layer recycle cotton and single-layer plastic film were-8.1℃,-13.8℃ and -19.7℃ respectively when the extremely minimum air temperature was -33.2℃.It was estimated that，when the air temperature was -37℃，the temperatures under the bilayer plastic film and single-layer recycle cotton were -9.4℃ and -15.6℃ respectively，but the temperature under the single-layer plastic film was as low as -22.4℃ and lower than the critical value of -22℃，thus a freezing injury of A.persica trees occurred.The yield and new shoot growth of Amygdalus persica var.compressa trees were not impacted when the bilayer plastic film was used.A disadvantage of mulching A.persica trees with bilayer plastic film was that a greenhouse effect occurred when air temperature rose rapidly，but it could be eliminated by putting side ventilation to decrease temperature and by irrigating A.persica trees in early spring to increase soil moisture content.

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Last Update: 2015-08-01