Browsing by Author "Hinga, G."
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Item Kari Narp 11 Project Preparation Report 1995(Kenya Agricultural Research Institute, 1995) Abate, A.N.; Cheruiyot, H.K.; Kimani, L.W.; Kiome, R.M.; Hinga, G.; Madumadu, G.G.; Mailu, A.M.; Matata, J.B.W.; Mbabu, A. ; Muchena, F.N.; Mulandi, J.C.; Mulandi, J.C.; Ngundo, B.W.; Wandera, J.K.; Oketch, A.G.O.; Kamau, C.R.; Kenya Agricultural Research Institute; ODA; Rockfeller Foundation; World Bank; Royal Netherlands Embassy; USAIDAlthough most sectors of Kenya's economy have developed considerably over the last fewd ecades, the agricultural sector still remains the mainstay of Kenya's economy. Kenya still relies heavily on the agricultural sector- for generation of income, employment, foreign exchange earnings and the provision of raw materials for the industrial sector. The priority of Kenya's agricultural policy is to achieve internal self sufficiency in food supply, to maintain adequate levels of strategic food reserves and to generate a surplus of .crop and livestock produce for export. In 1990 the sector accounted for 28.2% of Gross Domestic Product (GDP). It employs over 70% of the rural workforce and generates about 64% of export earnings. Between 1985 and 1990 agriculture grew at an average rate of 4.1 % per annum but stagnated at 2% in 1992 and 1993 (GoK, 1994). Given major constraints posed by rapid human population increases and scarcity of arable land, accelerated agricultural growth can only be achieved by increasing the productivity of the fixed land base. The growth requires development of production incentives, services and institutions needed to encourage innovation and investment.Item Ministry of Agriculture National Agricultural Fertilizer use Project (Phase 1): Final Report Annex III Description of the first priority sites in the various Districts Vol 4 Siaya(Ministry of Agriculture, 1987) Hinga, G.; Nandwa, S.W.; Onyango, J.W.; Muchena, F.N.; Gachene, C.K.K.; Kibe, J.M.; Qureshi, J.N.; Oduor, P.O.S.; Owuor, J.O.; Milikau, R.L.; Wamae, D.K.; Mwangi, B.; Wataka, S.; Ministry of AgricultureThe annual average rainfall of Siaya District increases from 800 mm at the lake shore to 2000 mm near the border of Kakamega District. The contrasts in 66% rainfall reliability, i.e. amounts surpassed in 20 out of 30 years, are even higher, in the first rains from 350 to 900 mm and in the second rains from 50 to 800 mm (see Maps 4.0.1 and 4.0.2). Near Lake Victoria the average annual temperature is about 22.5°C, in the nor~h-eastern part of the District it is 21°C . Humidity of the air is relatively high. For the entire District evaporation is 1800 - 2000 mm per year.Item Ministry of Agriculture National Agricultural Fertilizer use Report (Phase 1): Final Report Annex III Description of the first priority sites in the various Districts Vol 1 Kakamega(Ministry of Agriculture, 1987) Hinga, G.; Nandwa, S.W.; Onyango, J.W.; Muchena, F.N.; Gachene, C.K.K.; Kibe, J.M.; Qureshi, J. N.; Oduor, P.O.S.; Owuor, J.O.; Milikau, R.L.; Wamae, D.K.; Mwangi, B.,; Wataka, S.; Ministry of AgricultureAnnual rainfall in the District is both high, averaging 1200 to 2100 mm, and, apart from the north-eastern parts, reliable. In 20 out of 30 years 500 to 1100 mm are reached or surpassed in the first rains, 450 to 850 mm during the second rains. In the centre of the District rainy seasons cannot easily be distinguished, since there are normally no real dry seasons separating them (see Figure 7.3.5). First rains start at about the middle of February with a second increase in August followed by a third in October/November.Item Ministry of Agriculture National Agricultural Laboratories use recommendation project (phase I), Annex III: Description of the first priority sites in the various Districts Vol 25 Meru district(Ministry of Agriculture, 1987) Hinga, G.; Nandwa, S.W.; Onyango, J.W.; Muchena, F.N.; Gachene, C.K.K.; Kibe, J.M; Qureshi, J.N.; Oduor, P.O.S.; Owuor, J.O.; Milikau, R.L.; Wamae, D.K.; Mwangi, B.; Wataka, S.; Ministry of AgricultureThe Meru District is situated around the eastern slopes of Mt. Kenya. In the south-eastern region, the main agro-ecological zones follow - according to altitude - a similar pattern as in the bordering Embu District. However, the contrast between wet and dry seasons becomes more accentuated . This is reflected in the sequence of sub-zones (see Map 25.3) and in the rainfall diagrams for the various trial sites in Meru (Figutes 25.1.5 , 25.2.5 and 25.3 . 5) . For this reason, the cultivation of permanent and annual crops, such as coffee, tea, bananas and cotton, requires in most areas careful water and soil conservation to overcome the drought periods between the seasons. Such conservation measures are also beneficial for the seasonal crops , since the rainy seasons bring rainfall, though very high.Item National Agricultural Laboratories fertilizer use Research Project (Phase I): Final Report Annex III: Description of the First Priority Sites in the Various Districts Vol 26 Machakos District No.26(Ministry of Agriculture, 1987) Hinga, G.; Nandwa, S.W.; Onyango, J.W.; Muchena, F.N.; Gachene, C.K.K.; Qureshi, J.N.; Oduor, P.O.S.; Owuor, J.O.; Milikau, R.L.; Wamae, D.K.; Mwangi, B.,; Wataka, S.; Kibe, J.M.; Ministry of Agriculture; Kibe, J.The centre of Machakos District consists mainly of hills and small plateaus, rising to 1800-2100 m, surrounded by a large plateau, elevated to about 1700 m in the west and sloping down to 700 m in the south-east. This undulating peneplain is broken by isolated mountains such as 01 Donyo Sabuk in the north-west, by the volcanic outflow of the Yatta Plateau in the east, and by a range of volcanic ashes, the Chyulu Hills in the south-westItem Phosphate Sorption Capacity in Relation to Properties of Several Types of Kenya Soil(1973) Hinga, G.; National Agricultural LaboratoriesFertilizer trials and pot tests on soils in the greenhouse, have shown that phosphorus; s the most important nutrient limiting: the productivity of a great majority of Kenya Solis. The amount of available phosphorus is generally low particularly in the red, bracken one and ando-like soils without the addition of fertilizers. However, the addition of phosphatic fertilizers to these soils results in remarkable yield increases, provided other conditions are favorable, but the increases in available phosphorus are usually slight. The lack of increase in available phosphorus is attributable to the chemical reactions which the soluble phosphates undergo in the soil resulting in the formation of phosphate products or lower solubility than the phosphate in the fertilizers themselves.
