| Coupling effects of water and nitrogen on growth of sand cultivation cucumber |
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| DOI：10.7606/j.issn.1000-7601.2022.05.19 |
| Key Words: water and nitrogen coupling cucumber sand cultivation accumulation of dry matter yield |
| Author Name | Affiliation | | MA Xinchao | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | XUAN Zhengying | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | LI Yu | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | CHANG Jiao | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | GAO Yuan | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | FANG Jian | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | TAN Zhanming | College of Horticulture and Forestry, Tarim University, Alar, Xinjiang 843300, China
National and Local Joint Engineering Laboratory of High Efficiency and Quality Cultivation and Deep Processing Technology of Southern Xinjiang Characteristic Fruit Trees, Tarim University, Alar, Xinjiang 843300, China | | WANG Xufeng | College of Mechanical Electrification Engineering, Tarim University, Alar, Xinjiang 843300, China |
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| Abstract: |
| To clarify the response trend of cucumber to water and nitrogen coupling effects in sand cultivation, cucumber growth, dry matter accumulation, distribution, and yield were studied. “Youshengmei” fruit cucumber was selected as test material. The field experiment was carried out by using secondary saturated D-optimal design with two factors of irrigation level and nitrogen application. The results showed that: the growth indexes of all treatments increased gradually with the advance of cucumber growth period. Low irrigation level (65%) did not inhibit the growth of cucumber, the increase of nitrogen application significantly improved the corresponding values of growth indexes. T3 treatment, namely 65% irrigation level and 1 250 kg·hm-2 nitrogen application, had the best plant growth characteristics. The effects of water and nitrogen coupling on plant dry matter accumulation and distribution were mainly manifested in leaf, stem and fruit accumulation. The plant dry matter accumulation increased significantly with the increase of nitrogen application rate, and the irrigation level showed a downward parabolic trend, but the effect of irrigation level on plant dry matter accumulation was not significant. Through the correlation analysis of the growth indexes, it was determined that the leaf chlorophyll SPAD value could be used as a key index to predict the plant dry matter accumulation. The corresponding values of each growth index of treatment T4 during the whole growth period were at a high level, and the dry matter accumulation amount and the maximum dry matter accumulation rate of each plant were 248.08 g and 4.02 g·plant-1·d-1, respectively, which were the highest values among the treatments. Meanwhile, the yield of T4 (101.93 t·hm-2) was only second to T5, this treatment was in line with the goal of low input and high yield in agricultural production. Therefore, this study recommended T4 as the optimal water-nitrogen coupling scheme, namely, 80.20% irrigation level and 623 kg·hm-2 nitrogen application. |
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