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Narrow row spacing and high plant population to short height castor genotypes in two cropping seasons
(Elsevier B.V., 2012-01-01)
Castor plant (Ricinus communis L.) produces a very important oil for chemical and biofuel industries. However, doubts remain about what the best plant arrangement is to obtain the maximum yield of seeds and oil from short ...
Influence of fertilizer on coumarin content and biomass production in Mikania glomerata sprengel
(1998-12-01)
Mikania glomerata Sprengel leaf extracts have been used in cough syrup formulations due to the presence of active coumarin derivatives. Yields of such natural compounds in cultivated plants can be affected by several ...
Upland rice growth and mineral nutrition as affected by cultivars and sulfur availability
(2013-01-01)
A better understanding of the differential growth of upland rice (Oryza sativa L.) cultivars with increasing soil S availability could help improve rice yield under upland conditions. The objective of this study was to ...
Effects of superficial liming and silicate application on soil fertility and crop yield under rotation
(2013-03-01)
Soil acidity and low natural fertility are the main problems for grain production in Brazilian 'cerrado'. Although lime has been the most applied source for soil correction, silicate may be an alternative material due to ...
Plant density and nitrogen fertilization in Swiss chard
(Assoc Brasileira Horticultura, 2012-10-01)
An experiment was conducted to evaluate the effect of plant spacing and nitrogen fertilization on Swiss chard's yield, from September to November 2009. The experimental design was of randomized blocks in split plot with ...
Reação de cultivares de cana-de-açúcar à broca do colmo
(2013-01-01)
The objective of this study was to evaluate the reaction of ten sugarcane cultivars to Diatraea saccharalis under field conditions, using a randomized block design with treatments in factorial 2x10 with six replications. ...
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo
(2005-10-01)
Analysis of variance and covariance was preformed on growth traits (stem girth, bark thickness, total height gain and rubber yield) of 22 open-pollinated progenies of the rubber tree Hevea brasiliensis from an Asian Hevea ...
Doses de potássio em cobertura na cultura da abóbora
(2012-10-01)
Although there are recommendations for the fertilization of commercial squash crops, studies which connect the effect of topdressing potassium fertilization and yield are still rare. Thus, this study aimed at evaluating ...
Desenvolvimento do manjericão (Ocimum basilicum L.) cultivado em solução nutritiva com diferentes níveis de magnésio
(2007-11-01)
The aim of this experiment was to study the influence of several levels of magnesium on development and essential oil content of basil, plants were cultivated using Hoagland and Arnon (1950) number one 1 complete solution, ...
Comportamento de cultivares de cafeeiro em diferentes densidades de plantio
(2005-12-01)
This experiment was developed at Adamantina, west region of the State of São Paulo, Brazil, during May 1995 to June of 2000. The plant growth and productivity of two coffee cultivars Catuaí Amarelo IAC 47 and Obatã IAC ...