Zobrazeno 1 - 10
of 299
pro vyhledávání: '"K. REICHARDT"'
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
Autor:
L. Fante Junior, J. C. M. Oliveira, L. H. Bassoi, C. M. P. Vaz, A. Macedo, O. O. S. Bacchi, K. Reichardt, A. C. Cavalcanti, F. H. B. B. Silva
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 26, Iss 4, Pp 835-842 (2002)
A densidade do solo de amostras indeformadas foi determinada por meio das técnicas de tomografia computadorizada e do torrão impermeabilizado, visando à identificação de processos de compactação do solo e a comparação de métodos. A pesquisa
Externí odkaz:
https://doaj.org/article/34c84833a0aa489db8e91481a2096bfa
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 22, Iss 2, Pp 189-196 (1998)
Mechanical impedance of clayey and gravelly soils is often needed to interpret experimental results from tillage and other field experiments. Its measurement is difficult with manual and hydraulic penetrometers, which often bend or break in such soil
Externí odkaz:
https://doaj.org/article/08b2ff384d484a14a5975c454c7696f3
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 55, Iss 3, Pp 498-502 (1998)
The soil water retention curve is fundamental for the hydraulic characterization of a soil and has many applications in agricultural research as well as in practical agriculture. A new procedure for soil moisture and soil bulk density evaluation insi
Externí odkaz:
https://doaj.org/article/1ddd20e106464ccc87d3a6940740b3f5
Publikováno v:
Scientia Agricola, Vol 54, Iss 3, Pp 232-240 (1997)
Foi realizado experimento em um solo franco arenoso (Typic Haplustoll) na Estação Experimental da Universidade Central do Equador, "La Tola", em Tumbaco-Pichincha, Equador, entre julho e novembro de 1994, com o objetivo de identificar estádios da
Externí odkaz:
https://doaj.org/article/671e93b6f5b2411c83ac1fe403f5c714
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
Autor:
M.D. de Souza, L.H. Basssoi, O.O.S. Bacchi, K. Reichardt, L.C. Hermes, R.B. Abakerli, J.E. Pilotto
Publikováno v:
Scientia Agricola, Vol 54, Iss spe, Pp 116-120 (1997)
Atrazine displacement was studied in a soil profile as a function of water movement and time after herbicide application, taking into account possible influence of preferential flow on leaching. The experiment consisted of two 7 x 7m plots of a dark
Externí odkaz:
https://doaj.org/article/152b7b6eb897439db1730dd1beb3711e
Publikováno v:
Scientia Agricola, Vol 52, Iss 1, Pp 50-55 (1995)
Com o objetivo de estudar as características físicas do solo, sob monocultura, o presente trabalho avaliou a distribuição de tamanho de partículas, presença de camadas compactadas, porosidade total, macro e microporosidade de um latossolo verme
Externí odkaz:
https://doaj.org/article/66b1970bb71642a2ad12b00cc52359b7