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| DOI：10.13522/j.cnki.ggps.2019417 |
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| Effects of Alternate Drip Irrigation of Nutrient Solution in Root Division Area on Growth and Quality of Matrix Cultured Tomato |
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CHEN Zhiyuan, CHEN Yixin, GAO Yanming, LI Jianshe
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College of Agronomy, Ningxia University, Yinchuan 750000, China
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| Abstract: |
| 【Objective】We aimed to explore the effects of the amount and frequency of the feed on the growth, development and fruit quality of tomato under the model of alternate drip irrigation of nutrient solution in the Root Division Area. 【Method】For this test, we set the liquid supply volume as 450 mL (T1), 650 mL (T2), 850 mL (T3), and the liquid supply frequency as: 3 days/time (C1), 2 days/time (C2), and 1 day/time (C3) for 9 treatments under a completely randomized block design.【Result】The increase of nutrient liquid supply would decrease the quality of tomato fruit, which was not conducive to the accumulation of soluble solids. In terms of fruit quality, the content of soluble solids of T1C2 treatment was 6.97%, and the weight of single fruit was suitable, and the Vitamin C content of fruit was the highest. Secondly, the water use efficiency of T1C2 was the highest (67.06 kg/m3), 154.40% higher than that of CK, which greatly reduced the waste of agricultural water resources and achieved the goal of optimal tomato yield and water saving. In terms of fruit yield, the total yield of tomato treated with T2C3 was the largest, which was 13 409.10 kg/667m2. Compared with CK, the yield of T2C3 increased by 2886.4 kg and up to 27.4%.The single fruit weight of T2C3 treatment tomato can be up to 226.44 g, and the fruit weight is relatively large, the color being ruddy with good commercial property. In addition, the water use efficiency of T2C3 treatment was 40.29 kg/m3, which was 52.85% higher than that of CK, indicating that T2C3 treatment could improve water use efficiency while increasing yield.【Conclusion】From the aspect of fruit quality, T1C2 treatment, under the mode of alternate drip irrigation of nutrient solution in root area, with liquid supply volume being 450 mL, and the liquid supply frequency being 2 days/time, is the ideal liquid supply quantity and liquid supply frequency. From the aspect of fruit yield, T2C3 treatment, under the mode of alternate drip irrigation of nutrient solution in root area, the drip irrigation of 650 mL nutrient solution per plant per day was the ideal liquid supply volume and liquid supply frequency. |
| Key words: root region; tomato; quality; water use efficiency; drip irrigation |
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