Kimaro, A.A., Birhane, E., Mowo, J., Betemariam, E., Mpanda, M. Hadgu, K.M. 2014. Soil fertility management. In De Leeuw, J. Njenga, M., Wagner, B., Iiyama, M. (Eds). 2014. Treesilience: An assessment of the resilience provided by trees provided by trees in the drylands of Eastern Africa. Nairobi, Kenya. ICRAF (pp. 71-78).
Ambe, J.T., Agboola, A.A. & Hahn, S.K. (1992). Studies of weeding frequency in cassava in Cameroon. International Journal of Pest Management, 38(3), 302-304.
Nassary, E.K., Baijukya, F. & Ndakidemi, P.A. (2019). Sustainable intensification of grain legumes optimizes food security on smallholder farms: a review. International Journal of Agriculture and Biology, 1-17.
Berkhout, E.D., Malan, M. & Kram, T. (2019). Better soils for healthier lives? An econometric assessment of the link between soil nutrients and malnutrition in sub-Saharan Africa. Plos One, 14(1):e0210642, 1-26.
Fernández Rivera, S. et al., 'Faecal excretion by ruminants and manure availability for crop production in semi-arid West Africa', International Livestock Centre for Africa, 1995
Que,N.N., Lapar, M.L., Tisdell, C., Toan, N.N., Nga, Q.N., Ninh, T.T.N., Jabbar, M. and Staal, S. 2011. On the economics of small-scale household pig production in Vietnam: Survey results, analysis and assessment. Paper presented at the 7th international conference of the Asian Society of Agricultural Economists, Hanoi, Vietnam, 13-15 October 2011. Nairobi, Kenya: ILRI.
Sahrawat, K. L.;; Ponnamperuma, F. N.;, 'Measurement of Exchangeable NH4+ in Tropical Rice Soils', Soil Science Society of America Journal, vol. 42(2), pp. 282-283, Wiley, 1978
Cruz, R. T.;; O'Toole, J. C.;, 'Dryland Rice Response to an Irrigation Gradient At Flowering Stage', Agronomy Journal, vol. 76(2), pp. 178-183, Wiley, 1984
Flores-Nimedez, A. A.;; Doerffling, K; Vergara, B. S.;, 'Amelioration of Drought-Induced Transplanting Shock in Rice By an Abscisic Acid Analog in Combination with the Growth Retardant Tetcyclacis', 1995
Savoskul, Oxana; Shevnina, E. 2015. Irrigated crop production in the Syr Darya Basin: climate change rehearsal in the 1990s. In Hoanh, Chu Thai; Johnston, Robyn; Smakhtin, Vladimir. Climate change and agricultural water management in developing countries. Wallingford, UK: CABI. pp.176-192. (CABI Climate Change Series 8)
Abdullaev, Iskandar; Molden, David; Matyakubov, Bakhtyar. 2005. Best water conservation practices and their impact on water productivity in the Syr Darya River Basin. In Scientific maintenance as factor of sustainable development of water Management. Proceedings of International Conference, Kazakh Institute of Water Management, Kazakhstan, 20-21 October, 2005. pp.33-41.