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Evaluation of almond shell as a culture substrate for ornamental plants. I. Characterisation: (with 4 figures & 6 tables) Phyton
Lao,MT; Jiménez,S.
Some technical and economic problems currently limit the use of substrates. The main problems include the lack of reciprocal adaptation of the cultivation technics and the substrate, the possible presence of pathogens, and the cost involved. To these we must add the ecological problems of the extraction areas, since there are no short-term renewable resources, especially in the case of peat, the classic substrate. This has motivated the search for substitutes, especially amongst indigenous materials and those easily obtained locally, such as cereals straw, rice husk and cork residues. The use of these substrates should be evaluated agronomically for: physical (total porosity, available water, air content, distribution of particles size, apparent density),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Substrate characterisation; Available water; Peat; Expanded clay.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100007
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Evaluation of almond shell as a culture substratefor ornamental plants. II. Ficus benjamina: (with 3 tables & 2 figures) Phyton
Lao,MT; Jiménez,S.
Some technical and economic problems currently limit the use of substrates. The main problems include the lack of reciprocal adaptation of the cultivation technics and the substrate,the possible presence of pathogens, and the cost involved. To these we must add the ecological problems of the extraction areas, since there are no short-term renewable resources, especially in peat, the classic substrate. This has motivated the search for substitutes, especially amongst indigenous materials and those easily obtainable locally, such straws cereals, rice husk and cork residuous. The use of these substrates should be evaluated agronomically for: physical, chemical and cultural properties. The characterisation and use of almond shell (Prunus dulcis) as a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Substrate; Mixture; Peat; Expanded clay.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100008
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Nutrient levels of the soil solution obtained by means of suction cups in intensive tomato cultivation: (with 5 tables & 1 figure) Phyton
Lao,MT; Jiménez,S; Eymar,E; Fernández,EJ.
Suction cups are the only viable method to obtain in situ the soil solution along the culture in real time (24 h). The soil solution is the objective criterion to modify the nutrient solution, so that it can be an appropriate tool for fertirrigation management. The nutrient levels of the soil solution must be known to establish the appropriate approach to nutrients management. In this work, levels of pH, EC,NO3-,NH4+, H+2PO4- , K+, Ca2+, Mg2+, Na+ and Cl- of the soil solution of three tomato crops were followed for periods 1995/96 and 1996/97 culture estimated in a trial carried out during two years.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertirrigation management; Nutrient parameters; Nutrient solution; Tomato production.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100003
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Producción de biomasa y rendimiento en judía verde (Phaseolus vulgaris L.) cv. Strike en respuesta a la fertilización fosforada Phyton
R,Salinas; Sánchez,E; Ruíz,JM; Lao,MT; Romero,L.
El objetivo del presente trabajo fue determinar el impacto de la deficiencia de fósforo, el nivel adecuado o la toxicidad de este macronutriente en la producción de biomasa total y el rendimiento en judía verde (Phaseolus vulgaris L.) cv. 'Strike'. El experimento se realizó en cámara de cultivo, en macetas con sustrato (vermiculita). Los niveles de fósforo en la solución nutritiva fueron: P1: 0,5 mM; P2: 1 mM; P3: 2 mM; P4: 4 mM; P5: 6 mM, y P6: 8 mM. La concentración P3 (2 mM) fue considerada como la óptima. La influencia del fósforo fue significativa, provocando un aumento progresivo en la concentración total de este elemento en la planta. Con el tratamiento P6 se obtuvo la mayor concentración de fósforo en la planta y con P1 la más baja. Los resultados...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fósforo; Deficiencia; Toxicidad; Solución nutritiva; Rendimientos.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000100005
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