DEVELOPMENT OF DEFICIT IRRIGATION SCHEDULLING STRATEGIES FOR MAIZE CROP UNDER GRAVITY-DRIP IRRIGATION SYSTEM
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- 1-5 Chapters
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- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
Excerpt from the Study
The complexity of emitters in drip systems, makes it difficult to maintain precision during its production, as a result of changes in temperature, mould damage and nonuniform mixing of raw materials. These are some of the factors affecting emitter homogeneity. Similarly, field evaluation of the hydraulic characteristics of the system under local conditions of the Guinea Savannah ecological zone has not been fully explored (Oyebode et al., 2011). Research results documented on deficit irrigation schedulling are very few in the subSaharan African countries and for Samaru-Nigeria in particular. Igbadun (2012) for instance, reported field experiments on the impacts of methods of administering growthstage deficit irrigation on yield and soil water balance of a maize crop in Samaru. Other investigators (Halilu, 2014; Ismail, 2014) worked on water use for vegetable crops of water melon and tomatoes in Samaru and Kadawa, Nigeria. Thus, knowledge gaps remain as to the growth stage deficit irrigation tolerance limit for maize crop under different soil types, climatic conditions, different methods of administering deficit irrigation and the corresponding impacts on yield, soil water balance and water productivity. This suggests that more research work that could be applied beyond years, site and climatic conditions is needed; which can only be possible through the use of a 4 model, such as the Aqua Crop model. The model is not new, but yet to be explored by irrigators and researchers in the study area.
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