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Perdomo C, MAGonzález Franco, JoaquínGalvis, YC deGarcía Durán, E.Arregocés, OscarLeón Sarmiento, L.A.[Los macronutrimentos en la nutrición de la planta de arroz [conjunto audiotutorial]]Los macronutrimentos en la nutrición de la planta de arroz [conjunto audiotutorial]

Badu-Apraku, B.Fakorede, M.A.B.Menkir, A.Sanogo, D.[Conduct and management of maize field trials]Conduct and management of maize field trials

Schulz, S.[Farmer participation in research and development; the problem census and solving technique: IITA research guide, No. 57]Farmer participation in research and development; the problem census and solving technique: IITA research guide, No. 57
Autor: Butler, A.C.

Landscaping of research stations is important for soil conservation, health of staff, privacy, security, and aesthetics. Landscape design gives the first impression of a research station. If the design is efficient and maintenance is regular, few problems arise.


Butler, A.C.[Landscape design on research stations]Landscape design on research stations
Autor: Kang, B.T.

Fertilizers furnish plants with nutrients for growth. Generally, plants take up nutrients dissolved in water. Water solubility, however, cannot be used as the only measure of nutrient availability to plants. Several definitions and terms are important to describe fertilizers. The "grade", for exa...


Kang, B.T.[Fertilizers; definitions and calculations]Fertilizers; definitions and calculations
Ekeleme, F.Kamara, A.Omoigui, L.O.Tegbaru, A.Mshelia, J.Onyibe, J.[Guide to rice production in Borno State, Nigeria]Guide to rice production in Borno State, Nigeria

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