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7 Zoekresultaten voor tag: Haifa micro |
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Managing micronutrients in the greenhouse | English | Douglas A. Bailey and Paul V. Nelson
Proper plant nutrition is essential for successful greenhouse production of floricultural crops. As growers move towards substrates that do not contain mineral soil, micronutrient status of substrates and plants becomes more important. This bulletin outlines the major micronutrient problems that can be encountered in greenhouse production and outlines application treatments to correct micronutrient imbalances.
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Effects of fertigation regime on blossom end rot of vegetable fruits | English | Asher Bar-Tal and Benny Aloni
The relationships between blossom end rot (BER) of vegetable fruits and fertigation regimes are reviewed. Many fruit disorders are affected by nutrient deficiencies or unbalanced nutrition: BER, gold specks, green back, blotchy ripening, color spots, malformation, hollowness and fruit cracking. Numerous studies have shown that BER is a mineral disorder and that its occurrence could be reduced by improving the supply of specific nutrients. The sensitivity of vegetable fruits to BER varies greatly among cultivars, environmental conditions and fertigation regimes. Some interactions between environmental conditions and fertigation regime are presented. The relation between BER and Ca nutrition is described and discussed in detail. The possibility that Mn may also play a role in the development of BER is discussed.
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Fertigation basics | English | Charles M. Burt
Fertigation is widely practiced with drip irrigation, yet remains very unsophisticated. Major areas which need improvement are (i) making certain the irrigation system applies water with a high DU (uniformity), (ii) using proper injection pumps and protection hardware, (iii) recognizing that chemicals can interact with each other and with water to form precipitates which will clog emitters, (iv) understanding of nutrient ratios in plants and soil, (v) recognizing that nitrogen fertilization requires attention to the type of nitrogen, and (vi) developing programs for spoon-feeding chemicals. This paper covers the first 4 topics, plus discusses some specific fertilizers.
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Altos rendimientos y mejor caliada de Chile | Spanish
En Mexico, el chile no solo es la hortaliza de mayor tradicion, es tambien un cultivo de alto valor economico que se cultiva ampliamente en diversas regiones del Pais. Existe gran diversidad, entre los que destaca el ancho, serrano, jalapeno y pimiento. Actualmente las variedades de alto rendimiento exigen una nutricion balanceada en cada etapa de desarrollo. La linea de Haifa comprende fertilizantes solidos solubles de elevada pureza, recomendables para aplicaciones foliares y en los programas de Nutrigacion
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