EVALUATION OF YIELD AND SOIL WATER BALANCE OF TWO COWPEA VARIETIES UNDER DEFICIT IRRIGATION AND MULCH IN A WEIGHING-TYPE MICRO LYSIMETER
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 5000
ABSTRACT
The field experiment was conducted during the 2011 dry season at the Irrigation Research Fields of the Institute for Agricultural Research (IAR), Samaru, Nigeria, to evaluate yield and soil water balance of two cowpea varieties under deficit irrigation and mulch using locally assembled weighing- type micro lysimeter. The treatments comprised of three levels of irrigation water application depths (50%, 75% and 100% of weekly reference evapotranspiration (WRETo)) and two levels of mulch (No mulchNM, and black polyethylene mulch -BPM) and two varieties of cowpea (SAMPEA7 and 9) laid in a group balanced block on split-plot design. The result showed that the yield of the cowpea pods ranged from 0.29 t/ha to 1.29 t/ha. The highest yield was obtained from SAMPEA7 treatment irrigated at 100% WRETo with BPM. The drainage depth ranged from 3.9 mm to 89.5 mm with the least value obtained by SAMPEA9 at 50% WRETo and NM. The highest depth was by SAMPEA9 at 100% WRETo and BPM. In comparison, SAMPEA7 gave less drainage water compared to SAMPEA9. The study showed that crop water use of cowpea ranged from 187.6 mm to 335.6 mm for SAMPEA9 and 191.3 mm to 315.8 mm for SAMPEA7 with the least values occurring at 50% WRETo and NM. The estimated values of Kc for the two cowpea varieties at initial, crop development, mid and late season stage were 0.32, 0.58, 0.63 and 0.39, respectively for SAMPEA7 and 0.32, 0.63, 0.72 and 0.34, respectively, for SAMPEA9 varieties. The highest crop water use efficiency (CWUE) and irrigation water use efficiency (IWUE) were 3.76 kg/ha-mm and 2.11 kg/ha-mm, respectively, for SAMPEA7 variety and 2.94 kg/ha-mm and 1.68 kg/ha-mm, respectively, for SAMPEA9 variety. The crop yield response factor (Ky) was found to be 1.10 for the BPM treatments and 1.22 for the NM treatments. In conclusion, SAMPEA7 variety irrigated at viii 75% WRETo with BPM gave the highest WUE of 2.11 kg/ha-mm which translates to highest yield per unit depth of water-use.
Related Project Materials
INVESTIGATING THE EFFECT OF PRESERVATION AND UTILIZATION OF INFORMATION RESOURCES AT SA'ADU ZUNGUR UNIVERSITY LIBRARY, GADAU
Background of the Study
University libraries play a pivotal role in supporting the academic and research endeavors of students and facult...
FACTORS THAT ARE MILITATING AGAINST EFFECTIVE TEACHING AND LEARNING OF SUBJECTS IN SECONDARY SCHOOL STUDENTS
ABSTRACT
Teaching is a set of events, outside the learners which are designed to support internal process of learning or...
Politeness in Language Use- A Sociolinguistic Study of Undergraduates in Selected Universities in Anambra State, Nigeria
Background to the Study
8The interest of linguists in analysing conversational texts has gradually shifted from the traditional foc...
The effect of rural-urban disparities on STEM education access in Pankshin LGA, Plateau State
Background of the Study
Rural-urban disparities in educational access remain a critical issue in many regions, with signif...
An evaluation of diplomatic negotiation frameworks in multilateral settings: Evidence from G20 summits
Background of the Study
Diplomatic negotiation frameworks are central to resolving complex global issues in multilateral se...
An Assessment of How Ethnic Stereotyping Influences Community Conflicts: A Study of Langtang North Local Government Area, Plateau State
Background of the Study
Ethnic stereotyping, defined as the oversimplified and generalized belief about...
An appraisal of poverty-driven health risk behaviors in Borno State
Background of the Study
Poverty-driven health risk behaviors are a critical concern in many impoverished regions, including Borno State....
A CASE STUDY ON DEMOCRACY AND NATIONAL DEVELOPMENT UNDER THE BUHARI ADMINISTRATION (2015-2019)
Background of the study
The connection between democratic government and economic progress at the natio...
Analysis of Secure Email Communication Techniques in Federal University, Gusau, Zamfara State
Background of the Study
Email communication remains one of the most widely used means of digital corres...
The Impact of Political Campaign Events on Voter Turnout in Kano Municipal Local Government Area, Kano State
Chapter One: Introduction
1.1 Background of the Study
