Search the knowledge archive

84 documents indexed

Effect of organic and inorganic sources of nitrogen on growth, seed yield and oil content of sunflower grown in highly weathered soils in Morogoro - Tanzania

G. Chemining’wa · J. Kinama · I.A. Mwahija · A. Nyambilila

Sunflower contributes about 40% of total national cooking oil requirement, ranking as one of the most important cooking oil with very high nutritional value in Tanzania. However, its production per unit area ranges between 800 to 1100 kg/h…

RUF-34044 2014 CC BY 4.0 12 Aug 2015

Does long-term low-rate organic and inorganic nitrogen management guarantee maize yield under semi-arid conditions of eastern Kenya?

M. Oscar Kisaka · F.S. Mairura · M.W. Mucheru-Muna · D.N. Mugendi +2 more

Drier parts of Embu County endure high atmospheric heat, prolonged dry spells, declining soil fertility and erratic rainfall. Integrated soil fertility management (ISFM) technologies have been developed, and tested, with standardized appli…

RUF-33948 2014 CC BY 4.0 11 Aug 2015

Conservation agriculture I: Effects of legume crop species on ground cover, soil moisture retention, weed suppression and litter fall on maize yield in Swaziland

D. M. Bhekizizwe · O. T. Edje

The reintroduction of conservation agriculture in Swaziland required information on crop species that could provide ground cover, suppress weeds and conserve soil moisture. A field experiment was conducted at the Malkerns Research Station …

RUF-33903 2014 CC BY 4.0 11 Aug 2015

Journal articles Open Access
Using APSIM-model as a decision-support-tool for long-term integrated-nitrogen-management and maize productivity under semi-arid conditions in Kenya

M. Oscar Kisaka · F.S. Mairura · M.W. Mucheru-Muna · D.N. Mugendi +3 more

There is continued decline in per capita agricultural productivity in the drier parts of Kenya’s central highlands. The declines have been linked to low and declining soil fertility, soil water, high atmospheric heat, prolonged dry-spells …

RUF-33784 2015 CC BY 4.0 28 Jul 2015

Productivity and Phosphorus Use Efficiencies of Soybean Genotypes on Fields of Differing Soil Fertility in Two Agroecological zones of Uganda

P. Ebanyat · J. Ssekamwa · P. Tukamuhabwa

On- farm trials were conducted in the Northern moist farmlands (NMF) and South and Eastern Lake Kyoga basin (SELKB) agro-ecological zones of Uganda for two seasons of 2011 to determine the yield response of soybean genotypes to phosphorus …

RUF-33180 2012 CC BY 4.0 22 May 2014