Abstract

Kenya experiences huge production-consumption deficit in relation to rice. This is due to changing eating habits that has adopted more rice in the menu and rapidly rising population. Rice production has remained low being unable to meet consumption. Rice ecosystems in Kenya include irrigated, rainfed lowland and rainfed upland. Irrigated ecosystem has over the years been given more emphasis despite rainfed rice farming having double the potential over irrigation system. Ecologically rice grows well in abundant water supply, warm to high temperatures and in Clay sandy to loamy soils with slightly acidic to neutral pH. Rice varieties grown in Kenya are mainly traditional, introduced improved, hybrids and landraces. Rainfed rice farming faces constraint’s key among them being; drought and erratic rainfall, weeds, pest and diseases, cheap imports, land ownership and poor infrastructure. Mitigating against drought and erratic rainfall, improving farm inputs and equipment, increasing germplasm production and distribution, credit support and marketing to farmers, improving farmers skills through technological transfers and infrastructural development are prospects that if adopted could increase rainfed rice productivity. More attention towards improvement of rainfed rice farming could greatly contribute to bridging the production-consumption deficit that is bridged through imports. It is with this, that this review updates our understanding of rain fed rice farming in Kenya in terms of ecological conditions, ecological systems, varieties, constraints and prospects.

Highlights

  • Cultivated rice is grouped in to the genus Oryza taxonomically

  • Cultivated rice is not limited to the two Oryza species, other inter-specifics for example the New Rice for Africa marketed as NERICA’S that arose due to crossing of O. sativa, and O. glaberrima are cultivated [2]

  • Komboka was introduced by Kenya Agricultural and Livestock Research Organization (KALRO) in co-operation with International Rice Research Institute (IRRI) in 2013

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Summary

Introduction

Cultivated rice is grouped in to the genus Oryza taxonomically. The genus Oryza (O.) contains 23 species of which two are cultivated while the rest are wild [1]. In Kenya rice consumption has increased tremendously at an annual rate of 12% in comparison to wheat and maize that have increased at about 4% and 1% respectively. This is credited to changes in eating habits mostly among people living in urban centers [8]. In 2019 the annual rice consumption in Kenya was approximated to be 800,000 metric tons compared 130,000 metric tons produced the same year (Figure 1), the deficit was met through imports [6]. Irrigated rice production land potential is about 540,000 ha while the production land potential for rain-fed ecology is 1.0 million ha [7, 9] currently area under production is estimated to be 30,000 ha.

Rice ecological conditions
Rice ecosystems
Rice varieties under rainfed ecology in Kenya
Rainfed lowland ecology varieties
Rainfed upland ecology varieties
Rain-fed Rice production constraints in Kenya
Drought and erratic rainfall
Diseases and pests
Land ownership
Unfavorable trans-border trade practices and cheap imports
High cost of machineries and inputs
Poor infrastructure
Unskilled farmers and slow technology transfers
Poor access to credit and uncoordinated marketing
Mitigating against drought and erratic rainfall
Farm inputs and equipment
Germplasm production and distribution
Credit support and marketing
Infrastructural development
Improving farmers skills and technological know-how
Findings
Conclusion
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