|Table of Contents|

Study on Root Distribution Characteristics and Changes of Rhizosphere Soil Moisture Under Drip Irrigation of Junzao(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年22期
Page:
177-180
Research Field:
Publishing date:

Info

Title:
Study on Root Distribution Characteristics and Changes of Rhizosphere Soil Moisture Under Drip Irrigation of Junzao
Author(s):
ZHENG Qiang-qing; CHEN Qi-ling; LI Ming; WANG Jing-jing
Institute of Gardens,Xinjiang Academy of Land and Reclamation Sciences,Shihezi,Xinjiang 832000
Keywords:
drip irrigation; Junzao; root system; soil moisture
PACS:
S 665.1
DOI:
-
Abstract:
Taking 7 years Junzao orchard as research object,the water requirement characteristics to improve the sand moisture utilization rate of Junzao under drip irrigation were studied,and the root distribution characteristics and the dynamic change characteristics of soil water with sameness emitter and different drip irrigation time were analyzed.The results indicated that they were the shallower of root system distribution,the proportion of thick roots were larger than fine root,all of them were mainly in the 20~40 cm and accounted 55.51% of total root system.When the drip irrigation time was controlled at about 24 h in Junzao grownup orchard,it was focused on 50~60 cm with soil water enrichment zone,volumetric water content was relatively stable and kept for a long time.More important was no leakage and the deeper soil water does not move up.It benefited vertical growth of root system and rational and high effective utilization of agricultural water resources.

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Last Update: 2014-08-07