| Cite this article: | 王蔚杰,张晓燕,王发东.不同灌溉施肥对基质栽培番茄产量、品质及水肥利用率的影响[J].灌溉排水学报,0,():-. |
| WANG Weijie,ZHANG Xiaoyan,WANG Fadong.不同灌溉施肥对基质栽培番茄产量、品质及水肥利用率的影响[J].灌溉排水学报,0,():-. |
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| Effects of different irrigation and fertilization on yield, quality and water-fertilizer utilization efficiency of protected tomato |
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WANG Weijie, ZHANG Xiaoyan, WANG Fadong
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Jinchang Academy of Agriculture
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| Abstract: |
| 【Objective】 This study explored the effects of different irrigation and fertilization on the plant growth, yield, quality and water-fertilizer utilization efficiency of protected tomato, to select the best irrigation and fertilization mode suitable for tomato cultivation in Solar Greenhouse in Hexi arid area. 【Method】 Substrate (50% corn straw + 30% slag + 20% cow dung + biological bacteria）cultivation method was adopted. Four treatments were set, including the farmer model T0 as control (the fertilization amounts were N2.73 kg/hm2-P2O51.40 kg/hm2-K2O3.33 kg/hm2, and the water amount was 26.67 m3/hm2), conventional model T1 (the fertilization amounts were N1.93 kg/hm2-P2O50.67 kg/hm2- K2O2.67 kg/hm2, and the water amount was 20.00 m3/hm2), optimized mode T2 (Compared with T1, water and fertilizer are all down by 10%) and T3 (Compared with T1, water and fertilizer are all up by 10%). 【Result】 The results showed that the different irrigation and fertilization could significantly affect the yield, quality and water-fertilizer utilization efficiency of tomato. Compared with T0 treatment, with the decrease of fertilization amount and irrigation water amount, the values of tomato biomass, oxidase activity, proline, quality indexes, yield and water-fertilizer utilization efficiency firstly increased and then decreased. That is, the values reached the highest under T3 treatment, T1 treatment followed, and the lowest under T0 treatment, with significant difference between T3 treatment and T0 treatment. Malondialdehyde content in T0 treatment was the highest, but the highest commercial rate was in T3 treatment (87%). The flavor was the best when the ratio of soluble sugar/ organic acids was 5.13 in T3 treatment. Compared with T0 treatment, the yields of T1、T2、T3 treatments were increased 3.6%~27.8%. The yield of T3 treatment was the highest (677.73 kg/hm2). Irrigation water use efficiency and partial fertilizer productivity in T3 treatment were the highest, which were 30.8 kg/m3 and 116.9 kg/kg, respectively. 【Conclusion】 T3 treatment (the fertilization amounts were N2.13 kg/hm2-P2O50.73 kg/hm2-K2O 2.93 kg/hm2, and the water amount was 22.00 m3/hm2) was the optimal treatment, coordinated promoting the growth of tomato plants, and improving fruit quality, yield and water-fertilizer utilization efficiency. |
| Key words: protected tomato; irrigation and fertilization; yield; quality; water and fertilizer utilization efficiency |
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