| Effects of irrigation modes and irrigation amounts on quality and economic benefits of muskmelon in Shule river irrigation district |
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| DOI：10.7606/j.issn.1000-7601.2025.03.16 |
| Key Words: muskmelon yield quality irrigation mode irrigation amount irrigation water utilization efficiency economic benefits Shule river irrigation district |
| Author Name | Affiliation | | XU Wenxia | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | FENG Tao | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | PAN Qibing | Guazhou County Modern Agricultural Technology Service Center, Jiuquan, Gansu 735000, China | | SUN Xiangchun | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | ZHANG Meizhen | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | LV Duo | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | YIN Xiaoyan | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China | | ZHAO Juan | Jiuquan Academy of Agricultural Sciences, Jiuquan, Gansu 735000, China |
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| Abstract: |
| In the Shule river irrigation district, precipitation is scarce, and evaporation is high, making the traditional irrigation method for muskmelons the primary choice. To improve both the quality and yield of muskmelons in the district, this study focused on muskmelons as the research subject, exploring efficient, water\|saving irrigation methods suitable for their cultivation. The goal was to provide scientific and technological support for achieving high\|quality yields of muskmelons and optimizing the use of water resources in the Shule river irrigation district. The study was set up with five treatments: drip irrigation +3 600 m3·hm-2 irrigation+water and fertilizer integration (D1), drip irrigation +4 200 m3·hm-2 irrigation+water and fertilizer integration (D2), drip irrigation +4 800 m3·hm-2 irrigation+water and fertilizer integration (D3), furrow irrigation +9 000 m3·hm-2 irrigation+ topdressing and spreading fertilizer (G1), furrow irrigation +9 000 m3·hm-2 irrigation+ non\|topdressing (G2) to investigate the changes of soil volume moisture content and soil temperature, dry matter weight, quality, yield, irrigation water utilization efficiency (IWUE) and economy of muskmelon under different irrigation methods. The results showed that drip irrigation significantly increased the soil temperature of 0~5 cm soil layer by 1.9～6.2℃ and maintained a certain volume water content of 0~5 cm soil layer. Compared with furrow irrigation mode, drip irrigation mode improved the quality and IWUE of muskmelon, but the increase of irrigation amount significantly reduced the quality and IWUE of muskmelon and increased the dry matter weight and yield of muskmelon. Among them, the content of soluble sugar and vitamin C in muskmelon were D1, D2, D3, G1 and G2 from high to low, and the differences among different treatments were very significant (P<0.01). The yield of muskmelon was G1, D3, D2, G2, D1 from high to low, and the increase trend of muskmelon yield gradually decreased with the increase of irrigation quantity. The IWUE for muskmelon was highest under D2 treatment, followed by D1 and D3 treatment, and lowest under G2 treatment. The economy of muskmelon in D2 treatment reached 111 108 yuan·hm-2, and the increase trend of economy was no longer significant with the continuous increase of irrigation amount, and the yield and investment ratio of muskmelon in D2 treatment and D3 treatment was the highest. To sum up, it was suggested to implement the drip irrigation method +4 200 m3·hm-2+water and fertilizer integration technology (300 kg·hm-2, 150 kg·hm-2, 300 kg K2O·hm-2; 25%N, 100% P2O5, 50% K2O were applied in a single base before seeding, and the rest were applied in full) in Shule river irrigation district to improve the quality and economic benefits of muskmelon and the IWUE. |
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