Effects of environment and cultural conditions on nitrogen and phosphorus in coffee leaves
Analyses of total N an P in coffee leaves from different geographic areas have been compared. The levels of these nutrients are correlated with each other and the quadratic regression equation for leaf N on leaf P has been derived. The valued of N/P ratio in the coffee leaf for diagnosing nutritional status is assessed. No correlations were observed between Mg and either N or P. Irrigation of coffee in Kenya on latosolic soils raises leaf P but not N levels, in the absence of organic mulch and fertilezers. Effects of organic mulch, N and P fertilizers on leaf levels of N or P are discussed
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| Format: | biblioteca |
| Published: |
Oct
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| Subjects: | MEDIO AMBIENTE, CULTIVO, ANALISIS DE TEJIDOS, HOJAS, CONTENIDO DE NUTRIENTES, NITROGENO, FOSFORO, ABONOS, FERTILIZANTES NP, RIEGO, MANTILLO, EFECTOS DE LOS FERTILIZANTES, MACRONUTRIENTES, |
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