Napier yield response under different irrigation strategies in a tropical setting

There is information paucity on response of Napier production to different irrigation water management strategies. The study aimed at assessing the response of dry matter Napier yields (ton/ha) to different irrigation regimes. A single factor experiment was arranged in a completely randomized design...

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Main Authors: Ivan Ntege, Nicholas Kiggundu, Joshua Wanyama, Prossie Nakawuka
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Agricultural Water Management
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0378377423002688
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author Ivan Ntege
Nicholas Kiggundu
Joshua Wanyama
Prossie Nakawuka
author_facet Ivan Ntege
Nicholas Kiggundu
Joshua Wanyama
Prossie Nakawuka
author_sort Ivan Ntege
collection DOAJ
description There is information paucity on response of Napier production to different irrigation water management strategies. The study aimed at assessing the response of dry matter Napier yields (ton/ha) to different irrigation regimes. A single factor experiment was arranged in a completely randomized design under drip irrigation with three treatments: (T1) full irrigation, and two deficit treatments at 50% (T2) and 25% (T3) of full irrigation. The control was rainfed (T0). Results indicated that T2 saved over 48% of irrigation water with minimal yield reductions (14%) compared to T1. During peak dry season, T2 water productivity was higher by 20% compared to T1. Over 40% yield increase was observed in Treatment T3 at peak dry season. In comparison with T0, there was 132% average yield increase under T2 during the first, second, and third growth cycles. Thus, irrigation at 50% total available water is critical in addressing the fodder gap and contributes to minimizing livestock movement in search of pasture, hence, increased productivity.
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spelling doaj.art-6cad7b05620943eea25a349bef7ad38b2023-08-10T04:33:32ZengElsevierAgricultural Water Management1873-22832023-09-01287108403Napier yield response under different irrigation strategies in a tropical settingIvan Ntege0Nicholas Kiggundu1Joshua Wanyama2Prossie Nakawuka3Corresponding author.; Department of Agricultural and Bio-systems Engineering, Makerere University, P.O. Box 7062, Kampala, UgandaDepartment of Agricultural and Bio-systems Engineering, Makerere University, P.O. Box 7062, Kampala, UgandaDepartment of Agricultural and Bio-systems Engineering, Makerere University, P.O. Box 7062, Kampala, UgandaDepartment of Agricultural and Bio-systems Engineering, Makerere University, P.O. Box 7062, Kampala, UgandaThere is information paucity on response of Napier production to different irrigation water management strategies. The study aimed at assessing the response of dry matter Napier yields (ton/ha) to different irrigation regimes. A single factor experiment was arranged in a completely randomized design under drip irrigation with three treatments: (T1) full irrigation, and two deficit treatments at 50% (T2) and 25% (T3) of full irrigation. The control was rainfed (T0). Results indicated that T2 saved over 48% of irrigation water with minimal yield reductions (14%) compared to T1. During peak dry season, T2 water productivity was higher by 20% compared to T1. Over 40% yield increase was observed in Treatment T3 at peak dry season. In comparison with T0, there was 132% average yield increase under T2 during the first, second, and third growth cycles. Thus, irrigation at 50% total available water is critical in addressing the fodder gap and contributes to minimizing livestock movement in search of pasture, hence, increased productivity.http://www.sciencedirect.com/science/article/pii/S0378377423002688UgandaNapierDry matterYieldsDeficit irrigation
spellingShingle Ivan Ntege
Nicholas Kiggundu
Joshua Wanyama
Prossie Nakawuka
Napier yield response under different irrigation strategies in a tropical setting
Agricultural Water Management
Uganda
Napier
Dry matter
Yields
Deficit irrigation
title Napier yield response under different irrigation strategies in a tropical setting
title_full Napier yield response under different irrigation strategies in a tropical setting
title_fullStr Napier yield response under different irrigation strategies in a tropical setting
title_full_unstemmed Napier yield response under different irrigation strategies in a tropical setting
title_short Napier yield response under different irrigation strategies in a tropical setting
title_sort napier yield response under different irrigation strategies in a tropical setting
topic Uganda
Napier
Dry matter
Yields
Deficit irrigation
url http://www.sciencedirect.com/science/article/pii/S0378377423002688
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AT nicholaskiggundu napieryieldresponseunderdifferentirrigationstrategiesinatropicalsetting
AT joshuawanyama napieryieldresponseunderdifferentirrigationstrategiesinatropicalsetting
AT prossienakawuka napieryieldresponseunderdifferentirrigationstrategiesinatropicalsetting