Articles
Effect of cover-cultivation on soil temperature and growth of Ziziphus jujuba Mill. ‘Lingwu Changzao’
Article number
1116_15
Pages
89 – 92
Language
English
Abstract
Ziziphus jujuba Mill. ‘Lingwu Changzao’ (Lingwu long jujube) is one of the important economic forestry trees in Ningxia, China.
It is also the main component of agriculture industry in Ningxia because of its great ecological, social and economical benefits.
As Lingwu long jujube plantation has been increasing, the water requirement for jujube irrigation has been increasing, but the water resource is limited in Ningxia.
In order to select water-saving and labour-saving cultivation techniques, grey-blue fibre film (GBF), black plastic film (BPF), black-silver fibre film (BSF), and wheat straw (WS) were used to cover the soil of jujube plantation for one growing season; the soil moisture and temperature, shots and leaf growth, photosynthesis, single-fruit-weight etc. were tested to analyse the cover effect and to find the best cover material.
The results showed that different cover materials showed different soil water holding and soil temperature keeping effect, thus made a different growth effect.
When covered by black plastic, soil moisture in 10-20 cm depth was 75.56% which was more than that of control group.
The soil temperature in 0-10 and 10-20 cm depths was higher than that of control group by 18.89 and 15.06% respectively, and leaf chlorophyll content increased by 21.95%, enhancing the photosynthesis process.
All of this indicated that black-plastic-cover cultivation was more effective for Lingwu long jujube.
It is also the main component of agriculture industry in Ningxia because of its great ecological, social and economical benefits.
As Lingwu long jujube plantation has been increasing, the water requirement for jujube irrigation has been increasing, but the water resource is limited in Ningxia.
In order to select water-saving and labour-saving cultivation techniques, grey-blue fibre film (GBF), black plastic film (BPF), black-silver fibre film (BSF), and wheat straw (WS) were used to cover the soil of jujube plantation for one growing season; the soil moisture and temperature, shots and leaf growth, photosynthesis, single-fruit-weight etc. were tested to analyse the cover effect and to find the best cover material.
The results showed that different cover materials showed different soil water holding and soil temperature keeping effect, thus made a different growth effect.
When covered by black plastic, soil moisture in 10-20 cm depth was 75.56% which was more than that of control group.
The soil temperature in 0-10 and 10-20 cm depths was higher than that of control group by 18.89 and 15.06% respectively, and leaf chlorophyll content increased by 21.95%, enhancing the photosynthesis process.
All of this indicated that black-plastic-cover cultivation was more effective for Lingwu long jujube.
Authors
L.H. Song, B. Cao
Keywords
jujube, black plastic, soil moisture content, leaf chlorophyll content, net photosynthetic rate, single fruit weight
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