| Study on irrigation system of tomato substrate cultivation in non\|arable land solar greenhouse |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2025.02.21 |
| Key Words: greenhouse tomato irrigation scheduling CRITIC method substrate cultivation Hexi Corridor |
| Author Name | Affiliation | | ZHANG Yuxin | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | KUAI Jialin | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | MA Yanxia | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | WANG Xiaowei | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | KANG Enxiang | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | ZHANG Junfeng | Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China |
|
| Hits: 5 |
| Download times: 0 |
| Abstract: |
| Through a solar greenhouse experiment, based on the cumulative evaporation rate (E) of a stand\|dard evaporating dish with a Φ20 cm diameter pan between two irrigations, 0.4E, 0.6E, 0.8E, 1.0E, 1.2E were set as five different levels of irrigation amount, with an irrigation cycle of 2 days. The growth and quality of tomato was evaluated comprehensively by CRITIC method. CRITIC method evaluation comprehensive scores were regarded as the comprehensive growth and quality of tomato. Weight values of comprehensive growth, comprehensive quality, yield and IWUE were calculated by the coefficient of variation method. Then, TOPSIS method was used to evaluate the comprehensive benefits of all irrigation treatments. The height of tomato plants, dry mass of plants, leaves, and fruits increased with the increase of irrigation water. The 1.2E treatment increased by 32.3%, 41.8%, 66.5%, and 39.6% respectively compared with the 0.4E treatment. The root dry mass and root crown ratio showed a trend of first decreasing and then increasing with the increase of irrigation water. The 1.0E treatment decreased by 28.2% and 71.6% respectively compared with the 0.4E treatment. The CRITIC method ranked the comprehensive evaluation score of tomato growth as 1.2E>1.0E>0.8E>0.6E>0.4E, with the 1.2E treatment showing the best growth. The single fruit mass and fruit moisture content of tomatoes increased with the increase of irrigation water. The 1.2E treatment increased by 58.8% and 5.3% respectively compared with the 0.4E treatment. While the soluble solid content and sugar acid ratio decreased with the increase of irrigation water. The 1.2E treatment decreased by 82.7% and 50.7% respectively compared with the 0.4E treatment. The contents of soluble sugars, organic acids, Vc and lycopene showed a trend of first increasing and then decreasing with the increase of irrigation water. The CRITIC method ranked the comprehensive evaluation score of tomato quality as 1.0E>1.2E>0.8E>0.4E>0.6E, with the 1.0E treatment having the best quality. When the irrigation amount increased from 0.4E to 1.0E, the yield increased significantly with the increase of irrigation amount. The yield of the 1.0E treatment increased by 66.4% compared with the 0.4E treatment. When the irrigation amount increased from 1.0E to 1.2E, there was no significant difference in yield. The IWUE decreased with the increase of irrigation amount. The IWUE of the 1.2E treatment decreased by 28.7% compared with the 0.4E treatment. The TOPSIS comprehensive evaluation results indicated that the 1.0E treatment had the highest comprehensive benefits. An irrigation interval of 2 days and an irrigation amount of 1.0E can serve as an optimal irrigation system for tomato substrate cultivation during the autumn and winter seasons in greenhouse conditions in the Hexi Corridor of Gansu Province. |
|
|
|