| Cite this article: | 臧小平,井 涛,陈宇丰,等.不同滴灌用肥配方对香蕉产量、养分吸收利用及经济效益的影响[J].灌溉排水学报,0,():-. |
| ZANG Xiaoping,JING Tao,CHEN Yufengi,et al.不同滴灌用肥配方对香蕉产量、养分吸收利用及经济效益的影响[J].灌溉排水学报,0,():-. |
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| Effects of Fertilizer Formulations on Banana Yield, Nutrient Utilization Efficiency and Economic Benefits under Drip Irrigation |
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ZANG Xiaoping1, JING Tao1, CHEN Yufengi2, WANG Wei2, WANG Jiashui1, MA Weihong1, XIE Jianghui2
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1.HaiKou Experimental Station,Chinese Academy of Tropical Agriculture Sciences;2.Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agriculture Sciences
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| Abstract: |
| 【Objective】 Low nutrient use efficiency is a hard issue in China. Water coupling with fertilizer application is an effective way of improving nutrient resources efficiency as well as decreasing soil nutrient fixation in acidic soil. However, more information is needed about how to improve nutrient utilization efficiency in drip irragated fields. The objective of this field study was to compare the effect of different fertilizer formulations on drip-irrigated banana yield and nutrient utilization. 【Method】The experiment included four treatments: (i) no chemical fertilizer(CK), (ii) N application rate 309.7 kg/hm2 and N:P2O5:K2O=1.00:0.37:2.61(Treatment A), (iii) N application rate 619.3 kg/hm2 and N:P2O5:K2O=1.00:0.37:1.76(Treatment B), (iv) N application rate 619.3 kg/hm2, compound microelement 18.0 kg/hm2 and N:P2O5:K2O=1.00:0.37:1.76(Treatment C).【Result】The pseudostem girth, leaf number and leaf length in the chemical fertilizer treatments were higher than in the CK (P<0.05). The yield was 53 781 kg/hm2 in the A treatment, 9.7% higher than in the B treatment. The A treatment increased the agronomic efficiency (AE) and the partial factor productivity (PFP) by 125.6% and 72.6% compared with the B treatment. The net income was 116 614 yuan/hm2 in the A treatment, 22.2% higher than in the B treatment. and promote by input-output ratio from 1.95:1 to 2.18:1 respectively. 【Conclusion】Comprehensively compared, the best economic indicators, and fertilizer reduction of the banana fruit were obtained by the treatment of formula A , which also can be regarded as an efficient fertilizer application strategy in acidic soil. |
| Key words: drip irrigation; banana; water-soluble fertilizer; yield; nutrient utilization efficiency |
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