| 引用本文: | 张泽锦,王力明,唐丽,等.滴灌水量对设施土壤养分分布和黄瓜果实养分吸收的影响[J].灌溉排水学报,0,():-. |
| zhangzejin,wangliming,tangli,et al.滴灌水量对设施土壤养分分布和黄瓜果实养分吸收的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】探讨滴灌水量对设施土壤养分分布和黄瓜果实养分吸收的影响。【方法】以“川翠13号”黄瓜品种为试材，在大棚内进行膜下滴灌试验，设置5个灌水量处理，分别控制土壤体积含水率在25%～30%（T1）、35%～40%（T2）、45%～50%（T3）、55%～60%（T4）、65%～70%（T5），探讨了不同滴灌水量对设施土壤养分分布和黄瓜养分吸收的影响。【结果】，随着灌水量增加，土壤硝态氮、有效磷和速效钾均有下渗的趋势。就产量而言，随着灌水量增加，黄瓜产量逐渐增加，T5处理的产量最高，与T1处理相比，增加了55.60%； T4处理的黄瓜果实养分积累量和吸收率均为最高，N、P2O5、K2O积累量分别比T1处理增加了58.23%、46.53%和48.25%，N、P2O5、K2O吸收率分别为30.95%、7.74%和57.62%。【结论】最佳滴灌水量是3 288.60 m3/hm-2，在黄瓜目标产量一定的前提下，适当的提高灌水量，可以提高养分吸收率，达到以水促肥，减少化肥施用的目的。 |
| 关键词: 滴灌水量; 土壤养分; 黄瓜; 产量; 养分吸收率 |
| DOI： |
| 分类号:S642.2 |
| 基金项目:现代农业产业技术体系专项资金( CARS-23-G32) |
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| Effect of drip irrigation amount on soil nutrient distribution of greenhouse and the nutrient absorption of cucumber |
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zhangzejin1, wangliming1, tangli1, liyuejian2
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1.Horticulture Research Institute, Sichuan Academy of Agricultural Sciences;2.Sichuan Academy of Agricultural Sciences
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| Abstract: |
| 【Background】Optimal irrigation amount not only satisfy the needs of high yield of vegetables but can also reduce the loss of soil nutrients. Facility soil is more likely to cause soil nutrient accumulation than field soil due to the lack of leaching by natural rainfall. However, there are few reports on the impact of drip irrigation amount on facility soil nutrient distribution and cucumber nutrient absorption.【Objective】The objective of this study was to investigate effect of different irrigation amount on soil nutrient distribution of greenhouse and the absorption of nutrients of cucumber in Sichuan. 【Method】The cucumber variety "No. Chuancui 13" was used as the experiment material. Added to these were five irrigation levels by keeping the soil moisture at 25%～30% (T1), 35%～40% (T2), 45%～50% (T3), 55%～60% (T4), 65%～70% (T5) of the volumetric water content respectively. The experiment of drip irrigation under the film in the facility was conducted. 【Result】With the increase of irrigation amount, the soil nitrate nitrogen, available phosphorus and available potassium of the cultivated layer have a downward trend. With the increase of irrigation amount, the yield of cucumber increases gradually, and the yield of T5 treatment was highest. The yield of T5 treatment increased by 55.60% compared with T1 treatment. The cucumber fruits of T4 treatment had the highest nutrient accumulation and absorption rate. Compared with T1 treatment, the accumulation of N, P2O5 and K2O in T4 treatment increased by 58.23%, 46.53% and 48.25%, respectively. And the absorption rates in T4 treatment were 30.95%, 7.74% and 57.62%, respectively. 【Conclusion】the optimal irrigation amount is 3 288.60 m3?/hm-2 of the volumetric water content, under the premise of a certain target yield of cucumber, appropriately increase the amount of irrigation water, increase the nutrient absorption rate, and achieve the purpose of promoting fertilizer with water and reducing fertilizer application. |
| Key words: drip irrigation amount; soil nutrient; cucumber; yield; nutrient absorption rate |
