Zobrazeno 1 - 10
of 141
pro vyhledávání: '"D. Dourado-Neto"'
Publikováno v:
Planta Daninha, Vol 31, Iss 4, Pp 749-763 (2013)
Due to the increase of water deficiency in many farm regions and its meaning on weed interference, competitive interactions between soybean and three weeds were evaluated under water stress (20 to 40 days after transplanting) and no stress conditions
Externí odkaz:
https://doaj.org/article/3f36933fabf1447db1dbb9992f8e9ffd
Publikováno v:
Planta Daninha, Vol 31, Iss 3, Pp 599-610 (2013)
Devido à ausência na caracterização competitiva de espécies de plantas daninhas e suas habilidades sob condições edafoclimáticas desfavoráveis, avaliou-se o potencial de competição de Tridax procumbens em meio à cultura da soja. O cultivo
Externí odkaz:
https://doaj.org/article/bb087ca344a643f18c7b414de0e9e12b
Autor:
L. C. Timm, K. Reichardt, J. C. M. Oliveira, F. A. M. Cassaro, T. T. Tominaga, O. O. S. Bacchi, D. Dourado-Neto, D. R. Nielsen
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 28, Iss 1, Pp 49-58 (2004)
The state-space approach is used to evaluate the relation between soil physical and chemical properties in an area cultivated with sugarcane. The experiment was carried out on a Rhodic Kandiudalf in Piracicaba, State of São Paulo, Brazil. Sugarcane
Externí odkaz:
https://doaj.org/article/d0f704ec7f6a4dbb96b9a6f5d873959d
Publikováno v:
Planta Daninha, Vol 21, Iss 3, Pp 413-419 (2003)
O objetivo deste trabalho foi avaliar a seletividade de herbicidas aplicados em condições de pré e pós-emergência da cultura de milho, conduzida sob sistema de semeadura direta, sem a presença de plantas daninhas durante todo o ciclo da cultura
Externí odkaz:
https://doaj.org/article/2c43ad99ea0948b8bdb65546078f0cb6
Publikováno v:
Scientia Agricola, Vol 55, Iss spe, Pp 58-61 (1998)
The first models of temporal variation of root systems appeared over 20 years ago. The complex architectural geometry of root systems; the wide range in size and diameter and the rapid growth and decomposition of finest roots; the different physiolog
Externí odkaz:
https://doaj.org/article/c4979c624fb34e02840e891d0adfe183
Publikováno v:
Scientia Agricola, Vol 55, Iss spe, Pp 51-57 (1998)
With the purpose of presenting to scientists the implications of the objective in model development and a basic vision of modeling, with its potential applications and limitations in agriculture, an integration of crop modeling professionals with agr
Externí odkaz:
https://doaj.org/article/64fd06da7eb5412c82b87539bdfdf5eb
Publikováno v:
Scientia Agricola, Vol 54, Iss spe, Pp 149-154 (1997)
With the purpose to evaluate the effect of short (12 hours) and long (13 and 14 hours) photoperiods and air temperature regimes (winter and summer growing seasons) on soybean behaviour, greenhouse experiments were installed at the Federal University
Externí odkaz:
https://doaj.org/article/8a9c18954add4bd6bd72595c3ff6401b
Publikováno v:
Scientia Agricola, Vol 54, Iss spe, Pp 1-16 (1997)
To identify specific growth stages of the common bean crop at which the plant is less sensitive to water stress, in which irrigation could be omitted without significant decrease hi final yield, two field experiments were conducted at "La Tola" Unive
Externí odkaz:
https://doaj.org/article/f10ebadf755847b4aaca4362678912e1
Publikováno v:
Scientia Agricola, Vol 54, Iss spe, Pp 136-148 (1997)
The main objective of this paper was to develop a separable linear programming model, considering a set of technical factors which may influence the profit of an irrigation project The model presents an objective function that maximizes the net incom
Externí odkaz:
https://doaj.org/article/26f54ea0ecc44e52bab36d8858f50932
Autor:
K. Reichardt, O. Portezan, O.O.S. Bacchi, J.C.M Oliveira, D. Dourado-Neto, J.E. Pilotto, M. Calvache
Publikováno v:
Scientia Agricola, Vol 54, Iss spe, Pp 17-21 (1997)
A neutron probe calibration correction is proposed in order to reduce soil water content variability, assumed to be a consequence of improper calibrations relations. The time stability of spatially measured soil water content data is used to correct
Externí odkaz:
https://doaj.org/article/19f22b222a064500ae388e01383a61ef