Buscar
Mostrando ítems 21-30 de 64
Nitrogen content identification in crop plants using spectral reflectance and artificial neural networks
(2001-01-01)
The accurate identification of the nitrogen content in crop plants is extremely important since it involves economic aspects and environmental impacts. Several experimental tests have been carried out to obtain characteristics ...
Nitrogen content identification in crop plants using spectral reflectance and artificial neural networks
(Institute of Electrical and Electronics Engineers (IEEE), 2001-01-01)
The accurate identification of the nitrogen content in crop plants is extremely important since it involves economic aspects and environmental impacts. Several experimental tests have been carried out to obtain characteristics ...
Production of yacon plantlet (Polymnia sonchifolia poep. et endl.) in different organic fertilization
(International Society Horticultural Science, 2002-01-01)
The work was carried out in nursery of the Agronomical Science College (ASC) UNESP-Botucatu, in period from September 21(st) to October 31(st) 2000. The propagation material (rhizophores) was obtained from plants, which ...
Leaf spray fertilization of boron and zinc on productivity and fruit quality of Japanese pear tree
(2010-08-31)
The cultivation of fruit plants from temperate climate in tropical or subtropical regions can be a good income alternative for the producer. However, due to the little existent information about cultivation of those fruit ...
Leaf Spray Fertilization of Boron and Zinc on Productivity and Fruit Quality of Japanese Pear Tree
(Int Soc Horticultural Science, 2010-01-01)
The cultivation of fruit plants from temperate climate in tropical or subtropical regions can be a good income alternative for the producer. However, due to the little existent information about cultivation of those fruit ...
A genetic algorithm for crop rotation
(2012-06-13)
In the last few years, crop rotation has gained attention due to its economic, environmental and social importance which explains why it can be highly beneficial for farmers. This paper presents a mathematical model for ...
Non-nutrient heavy metals in tomato plants cultivated in soil amended with biosolid and sugar-cane bagasse compost
(2004-12-01)
In this study, non-nutrient heavy metal concentrations (Cd, Cr, Ni and Pb) were measured in composts during the composting process, in compost/Red-yellow Latosol mixtures, and in tomato plants. Composts were produced using ...
Variables Involved in the Planting of Rice in the Rice Husk
(Trans Tech Publications Ltd, 2012-01-01)
Rice production in Brazil in 2010 was approximately 12,2 million tons, and to reach that amount several planting techniques were used with different strains of rice in different rice-growing areas. Since Rice Husk Ash (RHA) ...