Impact of green manure and mineral fertilizer inputs on soil organic matter and crop productivity in a sloping landscape of Sri Lanka by Egodawatta, W.C.P., Sangakkara, U.R., Stamp, P.

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Early Growth of Crotalaria (Crotalaria juncea), Tithonia (Tithonia diversifolia), and Maize (Zea mays) as Affected by Soil Fertility and Phosphorus Fertilizer under Pot and Field C... by Rast, Helen, Liedgens, M, Sangakkara, U.R, Stamp, P

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Influence of different weed categories on growth and yields of maize (Zea mays) grown in a minor (dry) season of the humid tropics / Einfluss verschiedener Schadpflanzengruppen auf... by Sangakkara, U.R., Stamp, P.

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Root and shoot growth of maize (Zea mays) as affected by incorporation of Crotalaria juncea and Tithonia diversifolia as green manures by Sangakkara, U.R, Liedgens, M, Soldati, A, Stamp, P

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Agronomic regeneration of soil fertility in tropical Asian smallholder uplands for sustainable food production by DE COSTA, W. A. J. M., SANGAKKARA, U. R.

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Maize yields as affected by short- and long-term improved fallows: a comparative analysis in the Asian humid tropics by Schelbert, R, Sangakkara, U.R, Stamp, P

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Response of selected legume companion crops to irrigation frequencies by Sangakkara, U.R.

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Impact of the cropping systems of a minor dry season on the growth, yields and nitrogen uptake of maize (Zea mays L.) grown in the humid tropics during the major rainy season by Sangakkara, U.R, Richner, W, Steinebrunner, F, Stamp, P

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Soil moisture and potassium affect the performance of symbiotic nitrogen fixation in faba bean and common bean by Sangakkara, U.R. (Peradeniya, Univ. of (Sri Lanka). Faculty of Agriculture), Hartwig, U.A, Noesberger, J

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