Figure - uploaded by Mu'Azu DANTALA Zakari
Content may be subject to copyright.
Source publication
The effects of deficit irrigation and mulching practices to crop yield and crop water use (CWU) of tomato crop were examined at Kano River Irrigation Project (KRIP), during 2014 dry season irrigation farming. The experiments comprised of four levels of water application depths (40, 60, 80, and 100% of weekly reference evapotranspiration) and four l...
Similar publications
Citations
... However, studying the historic trend of soil-moisture in rainfed farming for the predominantly sandy-loam soils of semi-arid Kano, Nigeria could explore the trend of soil-moisture dynamics and its effect. For example, such a study can help in checking at which time (crop growth stage) soil-moisture is at or below the optimum (field capacity) level to take mitigation measures like estimating effective planting dates and deploying in situ soil-moisture conservation practices (Kamoni, 2005;Zakari et al., 2017). ...
Soil-moisture availability (SMA) is unquestionably important in crop production. Despite the acknowledgement of this, such conditions of SMA cannot easily be maintained during rainfed farming, especially in arid and semi-arid regions characterized by erratic rainfall. However, studying the historic trend of SMA in rainfed farming for the predominantly sandy-loam soils of semi-arid Kano could explore the dynamics of SMA and its effect on Maize crop production. To achieve this, a model for estimating SMA-deficit was developed, applied and reported herein. The model couples the SMA balance model, storm duration computation, cumulative infiltration (Horton's equation), crop evapotranspiration computation model and the algorithm for the computation of SMA-deficit. The model was able to predict periods when SMA-deficit is expected to be high or low whenever it takes a couple of days with or without rainfall events. The area below the SMA-deficit curve gives the amount of water that the rainfall failed to provide to make the water in the soil available to the crop due to dry spells. This deficit needs to be replaced using either supplemental irrigation or by means of in situ rainwater harvesting techniques otherwise, the crop will reach the permanent wilting point. However, the amount of water to be supplemented should depend also on the type of crop grown, the crop's growth stage, and soil and climate characteristics. The model was able to predict the fact that Maize plating may be delayed till around third-week of June to prevent the risk of long dry spells as Maize has little tolerance to water stress conditions.
... Advances in the irrigation sector are regularly introduced into irrigated agriculture as this is necessary to overcome the environmental impacts associated with irrigation (Levidow et al., 2014). In addition, an improved irrigation system can help address the problems of the limited water resources, particularly in arid and semi-arid (Ghanisanij et al., 2006;Zakari et al., 2020). Some of the advances introduced recently into irrigated agriculture include modelling, simulation and optimization of irrigation systems. ...
The semi-arid region of the world is occasionally affected by erratic rainfall and drought which threatens agricultural production and food security. This paper presents the outcome obtained from a review to provide proactive measures that will combat the problems of water scarcity through the adoption of sensor-based drip irrigation by small-scale farmers. The small-scale farmers constituted the larger proportion of the farming population in the region. The paper is centred on the general overview of irrigation practices, advances in irrigation systems, modelling irrigation and cropping Systems, coupling soil sensors with drip irrigation and their adoption. Factors that hinder the acceptance and adoption of sensor-based drip irrigation systems were reviewed and synthesized which include initial capital investment, farmers' awareness, risk perception and uncertainties, technical know-how, farm size and capital recovery. A simple framework for adopting a sensor-based drip irrigation system was developed. The building blocks of the framework include the dissemination of sensor-based irrigation to farmers, the creation of awareness among farming communities, and the provision of subsidies and credit. Others include the provision of policies and environmental standards and review of the price of water charges. This study will be useful to farmers, agricultural extension agents and policymakers in making decisions about the water resources planning and farming activities in the region.
