Water productivity with localized irrigation using groundwater and reuse water in the cultivation of plant species

Antônia B M Macêdo,Raimundo N T Costa,Danielle F De Araújo,Kenya G Nunes

doi:10.1590/1807-1929/agriambi.v24n4p219-224

Antônia B M Macêdo, Raimundo N T Costa + Show 2 more

Open Access

https://doi.org/10.1590/1807-1929/agriambi.v24n4p219-224

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Abstract

ABSTRACT This study aimed to analyze the water saving potential of replacing the traditional, furrow-irrigated banana crop in the Curu-Pentecoste Irrigated Perimeter with localized systems by inserting new cropping plans and sources of groundwater and reuse water. An analysis of the support capacity in shallow tube wells for irrigation was also performed, considering the scenario of full recharge and water scarcity. The economic analysis was performed using the profitability indicators of the investment analysis: benefit/cost ratio, net present value, internal rate of return and payback period. Water productivity data reveal that cropping plans associated with alternative sources of water from shallow tube wells and reuse of the excess surface irrigation water in localized systems are economically more attractive than traditional, furrow-irrigated banana crop. The support capacity of shallow tube wells reveals that the exploitation of this underground water resource in the region is a viable alternative for irrigation of small areas. With the exception of banana, the other scenarios analyzed showed positive cash flows from the second year.

Highlights

Expansion of agriculture and industry and the degradation of the environment are pointed out as the main factors responsible for reducing the available volume and quality of water, which justifies the need for using efficient irrigation methods and alternative sources of water resources, especially in arid and semiarid regions (Rebouças et al, 2010).The continuity of agricultural development requires new strategies, with a view to increasing crop yield and reducing production risks
Water productivity data reveal that cropping plans associated with alternative sources of water from shallow tube wells and reuse of the excess surface irrigation water in localized systems are economically more attractive than traditional, furrow-irrigated banana crop
The support capacity of shallow tube wells reveals that the exploitation of this underground water resource in the region is a viable alternative for irrigation of small areas

Summary

Introduction

The continuity of agricultural development requires new strategies, with a view to increasing crop yield and reducing production risks. Considering the need to preserve water resources and the environment, modern agriculture needs to increase the yield and quality of products in a sustainable way. In this context, the production system, including irrigation efficiency, should be analyzed and the planning should indicate the best management plan (Bonini et al, 2014; Dantas et al, 2014; Malek et al, 2018). It is worth highlighting that water productivity decreases with the increase in the water factor, a behavior due to the reduction in the rate of water utilization by the crop (Perry et al, 2009; Nunes et al, 2017)

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