[1]ZHANG Jun,FAN Xingke.Relationship Between Soil Water and Tomato Roots During Blossom Period in Greenhouse[J].Research of Soil and Water Conservation,2016,23(02):34-38.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
34-38
Column:
Public date:
2016-04-28
- Title:
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Relationship Between Soil Water and Tomato Roots During Blossom Period in Greenhouse
- Author(s):
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ZHANG Jun1,3, FAN Xingke1,2,3
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1. Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi 712100, China;
2. Northwest A & F University, Yangling, Shaanxi 712100, China;
3. National Engineering Research Center for Water Saving Irrigation at Yangling, Yangling, Shaanxi 712100, China
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- Keywords:
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tomato; root layer; blossom period; soil moisture
- CLC:
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S152.7
- DOI:
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- Abstract:
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We have conducted research on the amount as well as the length of tomato roots at different stages of blossom period so as to study its growth and distribution patterns at different growing stages. Meanwhile measurements of different points in tomato root system in soil layer were also conducted. We have analyzed transformation rules in both horizontal and vertical directions, so as to provide guidance to future tomato planting in greenhouses. Results have shown that the length of majority tomato roots grew from less than 5 cm to 5~15 cm from beginning to the end during blossom period. With time passing by, the amount of tomato roots and the length of the longest root increased significantly. The longer the distance is to the plant, the fewer the fluctuation range of soil moisture is. With the increase of soil depth, the fluctuation range of soil moisture decreased. The soil moisture fluctuated significantly in 30 centimeters underground, however in soil layers under 30 cm underground, the fluctuation was not obvious. At the beginning of blossom period, tomato roots grew apparently in both horizontal and vertical directions. At the end of blossom period, root growth in vertical direction took a dominant role and growth in horizontal direction became relatively slower. The sensitive area of soil moisture during blossom period was 5—30 cm underground in vertical direction and 0—20 cm to the plant in diameter direction. Soil moisture in 10—20 cm soil layer and 5 cm from the plant in horizontal direction can be used to guide irrigation of tomato plant in blossom period.