Effect of Intermittent Solution Circulation on Tomato Growth and Yield in the Nutrient Film Technique(PDF)
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年20
- Page:
- 67-75
- Research Field:
- Publishing date:
Info
- Title:
- Effect of Intermittent Solution Circulation on Tomato Growth and Yield in the Nutrient Film Technique
- Author(s):
- REN Maofei1; 2; WANG Jiqing2; LI Yu2; ZHOU Yan2; MA Caixia2; ZHANG Yonghao2; SANG Zheng2
- (1.Xinyang Agriculture & Forestry College,Xinyang,Henan 464000;2.College of Horticulture,Henan Agricultural University,Zhengzhou,Henan 450002)
- Keywords:
- tomato; nutrient film technique; intermittent solution circulation; cultivation bed
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180795
- Abstract:
- Nutrient film technique is an important mode of soilless cultivation. In order to explore the solution circulation system of tomato nutrient film technique of early spring under greenhouse in the central plains.Tomato cultivar ‘Shuang kang No.1’ was taken as experimental materials. It was one hour for the cycle of day,six levels (20,25,30,35,40,45 minutes for each hour) were set up intermittent solution circulation time; solution circulation system of night was providing water for 3 hours every 15 minutes.Tomato development and photosynthetic characteristics,yield and quality were investigated.The effects of intermittent solution circulation time on the growth and yield of tomato in NFT were studied.The results showed that there was no significant difference in fresh weight and dry weight of tomato overground part.With the extension of time for the irrigation,the plant height of tomato showed a trend of increasing gradually,no significant difference in stem diameter and leaf.With the extension of time for the irrigation,fresh and dry weight of underground,net photosynthesis rate,stomatal conductance,transpiration rate,weight of single,excellent fruit rate,yield decreased after increased trend,the yield per 667 m2 of treatment 25 minutes for each hour,30 minutes for each hour were 7 948.06 kg，7 960.93 kg.With the extension of time for the irrigation,fruit dry weight and fresh weight ratio decreased，soluble sugar,organic acid and vitamin C content were no significant difference in different treatments.Intermittent solution for the same time interval,compared with cultivation bed under the ground level，cultivation bed over the ground level treatment could effectively improve biological indicators,such as plant height,stem diameter,leaf area,ratel of hotosynthesis,improve the rhizosphere temperature 1-2 ℃,monoclonal fruit number increased by 2.2,the excellent fruit rate increased by 11.75%,the yield increased by 9.48%.
Last Update: 2018-11-05