| 不同再生水水质和追肥量对滴灌辣椒光合和产量的影响 |
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| 引用本文： | 董思琼,田军仓,沈晖,闫新房,陈海银. 不同再生水水质和追肥量对滴灌辣椒光合和产量的影响[J]. 节水灌溉, 2022, 0(2): 34-39. DOI: 10.3969/j.issn.1007-4929.2022.02.006 |
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| 作者姓名： | 董思琼 田军仓 沈晖 闫新房 陈海银 |
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| 作者单位： | 宁夏大学土木与水利工程学院,银川750021;宁夏大学土木与水利工程学院,银川750021;宁夏节水灌溉与水资源调控工程技术研究中心,银川750021;旱区现代农业水资源高效利用教育部工程研究中心,银川750021 |
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| 基金项目： | 国家重点研发计划课题(2018YFC0408104);宁夏高等学校一流学科建设项目(NXYLXK2017A03)。 |
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| 摘 要： | 为探究滴灌辣椒不同再生水比例和不同追肥量的最优组合.采用两因素三水平随机区组试验方法,研究不同灌溉水质(W3为再生水,W2为再生水:自来水=1:1,W1为自来水)和不同追肥定额(F1为60 kg/(hm2·次),F2为90 kg/(hm2·次),F3为120 kg/(hm2·次))对辣椒生长、光合作用和产量的影响.结果...
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| 关 键 词： | 再生水 膜下滴灌 辣椒 光合作用 节水灌溉 |
Effects of Different Reclaimed Water Quality and Fertilization Levels on Photosynthesis and Yield of Pepper Under Drip Irrigation |
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| DONG Si-qiong,TIAN Jun-cang,SHEN Hui,YAN Xin-fang,CHEN Hai-yin. Effects of Different Reclaimed Water Quality and Fertilization Levels on Photosynthesis and Yield of Pepper Under Drip Irrigation[J]. Water Saving Irrigation, 2022, 0(2): 34-39. DOI: 10.3969/j.issn.1007-4929.2022.02.006 |
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| Authors: | DONG Si-qiong TIAN Jun-cang SHEN Hui YAN Xin-fang CHEN Hai-yin |
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| Affiliation: | (School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan 750021,China;Engineering Technology Research Center of Water-Saving and Water Resource Regulation in Ningxia,Yinchuan 750021,China;Engineering Research Center for Efficient Utilization of Modern Agricultural Water Resources in Arid Regions,Ministry of Education,Yinchuan 750021,China) |
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| Abstract: | In order to explore the optimal combination of different reclaimed water ratios and different fertilization amounts,the two-factor three-level random segment test method was used to study the effects different irrigation water(W3 is reclaimed water,W2 is 1∶1 mixture of reclaimed water and tap water,W1 is tap water)and different fertilizer quota(F1 is 60 kg/hm2,F2 is 90 kg/hm2,F3 is 120 kg/hm2) on the growth,photosynthesis and yield of pepper.The results showed that the mean values of plant height,stem diameter,photosynthetic indexes(Pn,Gs,Ci,Tr and WUE),yield and partial fertilizer productivity of pepper increased with the increase of reclaimed water proportion in irrigation water under certain fertilization amount.Under certain irrigation water quality conditions,the mean values of plant height and stem diameter of pepper increased with the increase of fertilization amount,while the mean values of photosynthetic indexes and yield increased first and then decreased,and the mean values of fertilizer partial productivity decreased with the increase of fertilization amount.The yield of pepper under reclaimed water irrigation was significantly higher than that under tap water irrigation at low(F1)and medium(F2)fertilization levels.The plant height,stem diameter,yield and instantaneous net photosynthetic rate of pepper of W3F2 treatment were 29.73%,13.39%,36.18%and 49.60%higher than those of W1F1 treatment,respectively.The principal component analysis showed that W3F2 treatment had the highest comprehensive score.In other words,under the conditions of 174.30 mm rainfall,2820 m3/hm2 irrigation quota(15 times of irrigation),reclaimed water as irrigation water and 900 kg/hm2 fertilization(10 times of fertilization),the pepper grew well and had the highest net photosynthetic rate and yield. |
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| Keywords: | reclaimed water drip irrigation under film pepper photosynthesis water saving irrigation |
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