Now showing items 1-10 of 1409
Effects of different nutrient concentrations and reuse of substrate in tomato production
(Int Soc Horticultural Science, 2015-01-01)
Reusing the substrate in subsequent crops has been proposed due to several advantages, especially economic and environmental ones. Furthermore, the electrical conductivity of the nutrient solution can directly influence ...
Uso racional de nutrientes no cultivo hidropônico de amorperfeito
The objective of this work was to evaluate different concentrations of nutritional solution in the hydroponic cultivation of Viola x wittrockiana Gams. The experiment was conducted in DFT hydroponic system, in a completely ...
DEFICIÊNCIAS MINERAIS NO CULTIVAR DE ALGODÃO IAC-22
(Instituto Agronômico de Campinas, 1997-01-01)
Desenvolveu-se um experimento em solução nutritiva, omitindo-se os nutrientes, um a um, com o objetivo de descrever as deficiências minerais no cultivar de algodão (Gossypium hirsutum L.) IAC 22. As deficiências de N, P, ...
Influence of drainage and nutrient-solution nitrogen and potassium concentrations on the agronomic behavior of bell-pepper plants cultivated in a substrate
(Public Library Science, 2017-07-05)
The interactive effects of N (6, 9, 12 and 15 mmol L-1) and K (3, 5, 7, and 9 mmol L-1) concentrations in nutrient solutions were evaluated on bell pepper grown in a coconut-coir substrate and fertilized without drainage. ...
Evaluación de tres variedades de albahaca y dos dosis de fertilización en producción hidropónica y en suelo
(Zamorano: Escuela Agrícola Panamericana, 2012, 2012)
Gaseous exchanges, growth and foliar anatomy of sugarcane plants grown in potassium (K) deprived nutrient solution
Potassium participates in the plant metabolism and has an important effect on stomata opening, the activation of some enzymes and the mobilization of solutes, with positive effects on photosynthate distribution. Thus, in ...
Corn growth and changes of soil and root parameters as affected by phosphate fertilizers and liming.
(Pesquisa Agropecuária Brasileira, Brasília, V.26, n.9, p.1309-1314, set. 1991, 2011)