Assessing crop water productivity at Nyanyadzi smallholder irrigation scheme in Zimbabwe
Publish place: Water Productivity Journal، Vol: 1، Issue: 4
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
View: 142
This Paper With 12 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_WPJ-1-4_002
تاریخ نمایه سازی: 20 تیر 1400
Abstract:
This study determines the effects of variations in relative water supply (RWS) on bean and wheat crop water productivity (WP) under irrigation in Block C at Nyanyadzi irrigation scheme in Zimbabwe. Water supply, bean and wheat crop yield data spanning ۱۷ cropping seasons from ۱۹۷۰ to ۲۰۰۳ were obtained from the irrigation scheme files. Research findings show a weak and significant (R۲=۰.۴۴۸, p = ۰.۰۰۶) quadratic relationshipbetween bean WP and RWS. Whereas, for the wheat crop, the relationship WP and RWS is a linear and significant (R۲ = ۰.۴۳۸, p = ۰.۰۰۴). Based on the research findings, the study recommends the measures to improve water supply and therefore, crop production. These include among others, switching to more drought tolerant crop varieties that require less water, rainfall harvesting, water conservation measures to retain soil water and, use of more efficient water application methods.
Keywords:
Authors
Never Mujere
Lecturer, Department of Geography and Environmental Science, University of Zimbabwe, Mount Pleasant, Harare, Zimbabwe
Dominic Mazvimavi
Department of Earth Sciences, University of the Western Cape, Cape Town, South Africa