| Effects of water and fertilizer supplies on tomato growth and yield |
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| DOI：10.7606/j.issn.1000-7601.2016.02.39 |
| Key Words: tomato irrigation amount fertilizer rates of nitrogen phosphorus and potassium growth yield |
| Author Name | Affiliation | | QIU Yuan | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHAO Lian-yuan | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | HU Tian-tian | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | NIU Xiao-li | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | LIU Zhi-kai | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | SU Yi | College of Hydraulic and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| The “Jin Peng No.1” was used as the experiment material to analyze the growth and production of tomatoes through a potted experiment under different irrigation amounts and with various dosages of nitrogen, phosphorus and potash fertilizers. Contribution rates to the numbers of leaves by all factors were in the following pattern: nitrogen dosage=phosphorus dosage＞irrigation amount＞potash dosage. Contribution rates to the leaf-fruit ratio were in the following order: irrigation amount＞nitrogen dosage＞phosphorus dosage＞potash dosage. Contribution rates to fruit setting ratio followed: irrigation amount＞nitrogen dosage＞phosphorus dosage＞potash dosage. Irrigation capacities at 60% to 83.78% were beneficial for production through the reduction of the leaf-to-fruit ratio. Fertilizer amounts of nitrogen and phosphorus at 0.96 g·kg-1(Soil) and (P2O5) 0.528 g·kg-1(Soil) respectively resulted in the elevations of leaf numbers and the leaf-fruit ratio and the reductions of fruit setting ratio and yield. With the increases of the irrigation, nitrogen and phosphorus levels, the production of the tomato exhibited a trend of being increased first and then going decreased. When irrigation capacity reached 83.78%, nitrogen, phosphorus and potassium fertilizations were (N) 0.77 g·kg-1(Soil), (P2O5) 0.421 g·kg-1(Soil), and (K2O) 0.670 g·kg-1(Soil), respectively, the yield of the tomato reached a peak at 467.5 g·plant-1. |
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