ISWC OpenIR  > 水保所知识产出(1956---)
温室番茄开花结果期根系与土壤水分变化关系
张军1,3; 范兴科1,2,3
2016
Source Publication水土保持研究
Volume23Issue:2Pages:34-38
Abstract

对番茄开花结果期初、中、后期三个阶段根系变化进行数量统计及长度测定,研究了番茄开花结果期不同生
长阶段根系生长分布规律。同时对番茄根系层空间不同位置土壤含水率进行测定,分析了根系生长发育与对应区域
土壤含水率变化规律和关系,从而为温室番茄种植提供指导。结果表明:开花结果初期到后期,随着时间推移,总根数
及最长根长度均有明显增加。番茄主要根系长度从0~5cm生长为5~15cm。开花结果期初期根系在水平及垂直
方向伸长生长均较明显,开花结果期后期根系以垂直生长为主,水平方向生长相对减弱。土壤含水率的变化与主根
系分布表现为较高的一致性,在整个开花结果期,土壤含水率的主要变化区域为径向0—20cm,纵向0—30cm,并表
现为距植株水平距离越大,变幅越小。随土层深度增加,根系层含水率变幅递减的规律。由此得出番茄开花结果期的
土壤水分敏感区域为径向距植株0—20cm,纵向地表以下5—30cm深度土层,距植株水平距离5cm处10—20cm土
层土壤含水率可作为指导开花结果期番茄灌溉的指标。

Other Abstract

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 5~15cm 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 30centimeters underground,however in
soil layers under 30cm 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—30cm underground in vertical direction and
0—20cm to the plant in diameter direction.Soil moisture in 10—20cm soil layer and 5cm from the plant in
horizontal direction can be used to guide irrigation of tomato plant in blossom period.

Keyword番茄 根系层 开花结果期 土壤含水率
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8697
Collection水保所知识产出(1956---)
Affiliation1.中国科学院水利部水土保持研究所
2.西北农林科技大学水保所
3.国家节水灌溉杨凌工程技术研究中心
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
张军,范兴科. 温室番茄开花结果期根系与土壤水分变化关系[J]. 水土保持研究,2016,23(2):34-38.
APA 张军,&范兴科.(2016).温室番茄开花结果期根系与土壤水分变化关系.水土保持研究,23(2),34-38.
MLA 张军,et al."温室番茄开花结果期根系与土壤水分变化关系".水土保持研究 23.2(2016):34-38.
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