Results 21 to 30 of about 261,417 (315)

Faixa de umidade menos limitante ao crescimento vegetal e sua relação com a densidade do solo ao longo do perfil de um latossolo roxo The least limiting water range as related to the soil bulk density along the soil profile of an oxisol

Ciência Rural, 2000
Quando um solo sofre qualquer tipo de manejo, sua estrutura é afetada, acarretando, normalmente, aumento na sua densidade com conseqüente diminuição da sua porosidade e alteração na distribuição do diâmetro dos seus poros. Este trabalho foi realizado com
Vilson Antonio Klein, Paulo Leonel Libardi   +1 more
doaj   +1 more source

Features of autumn development of winter wheat depending on the main tillage in the Luhansk region

Agrology, 2020
Today, in the scientific and practical field, as well as a long time later, much attention is paid to improving the quality and quantity of yield. To obtain the desired results, we considered various systems of basic soil tillage in the growing of winter
S. V. Masliev, A. A. Beseda, I. I. Yarchuk, D. V. Tsyganok, S. S. Romashenko   +4 more
doaj   +1 more source

Establishment of Xaraés and Marandu grasses under levels of soil compaction Estabelecimento dos Capins-Xaraés e Marandu sob níveis de compactação do solo

Engenharia Agrícola, 2012
In Cerrado soils under grazing, changes occur in physical attributes, such as increased density, decreasing on the size of water stable aggregates, and macroporosity reduction.
Edna M. Bonfim-Silva, Daniel D. Valadão Júnior, Rafael H. P. dos Reis, Jader J. Campos, Walcylene L. M. P. Scaramuzza   +4 more
doaj   +1 more source

Experimental study of tsunami-type waves impact on soil at foundations of offshore gravity platforms

Инженерно-строительный журнал, 2014
Scouring, caused by waves, currents and races of ship propellers, has been a subject of theoretical investigations, physical modeling in hydraulic laboratories and full-scale experiments in several countries. The results reported on these tests usually
N.D. Belyaev, V.V. Lebedev, I.S. Nudner, A.V. Mishina, K.K. Semenov, D.I. Shchemelinin   +5 more
doaj   +1 more source

Anatomia radicular de milho em solo compactado Anatomy of maize roots in compacted soil

Pesquisa Agropecuária Brasileira, 2010
O objetivo deste trabalho foi avaliar a relação entre a estrutura anatômica das raízes de milho e os atributos físicos de solo submetido a diferentes graus de compactação.
Anderson Cristian Bergamin, Antonio Carlos Tadeu Vitorino, Beatriz Lempp, Cristiano Márcio Alves de Souza, Fábio Régis de Souza   +4 more
doaj   +1 more source

Atributos químicos e físicos de um argissolo cultivado com Panicum maximum Jacq. cv. IPR-86 Milênio, sob lotação rotacionada e adubado com nitrogênio Chemical and physical attributes in an anfisol cultivated with Panicum maximum Jacq. cv. IPR-86 Milênio, under rotational stocking and fertilized with nitrogen

Revista Brasileira de Ciência do Solo, 2008
A avaliação dos atributos químicos e físicos do solo é necessária em estudos que exploram intensivamente os sistemas de pastejo. No presente trabalho, objetivou-se avaliar as variações nos atributos físicos e químicos de um Argissolo cultivado com capim ...
Patrícia Sarmento, Luis Roberto de Andrade Rodrigues, Mara Cristina Pessôa da Cruz, Simony Marta Bernardo Lugão, Fábio Prudêncio de Campos, José Frederico Centurion, Manoel Evaristo Ferreira   +6 more
doaj   +1 more source

THE INFLUENCE OF BASIC TILLAGE METHODS ON AGROPHYSICAL PROPERTIES OF DARK-CHESTNUT SOILS IN SARATOV TRANS-VOLGA REGION

Научный журнал Российского НИИ проблем мелиорации, 2019
The purpose of research is to study the influence of resource-saving tillage methods and their alternation for various crops in irrigated crop rotation on its agrophysical properties.
V. A. Shadskikh, V. E. Kizhaeva, O. L. Rasskazova   +2 more
doaj   +1 more source

Modelling diverse root density dynamics and deep nitrogen uptake — a simple approach [PDF]

, 2009
We present a 2-D model for simulation of root density and plant nitrogen (N) uptake for crops grown in agricultural systems, based on a modification of the root density equation originally proposed by Gerwitz and Page in J Appl Ecol 11:773–781, (1974). A
Zhang, Kefeng, Jensen, Lars Stoumann, Pedersen, Anders, Thorup-Kristensen, Kristian, Zhang, K.   +4 more
core   +1 more source

Analisis Kepadatan Lapangan Menggunakan Metoda Sand Cone Di Jalan Perumahan Ekajaya Permata 1 Sicincin Kota Payakumbuh

Jurnal Bangunan, Konstruksi & Desain, 2023
Every housing complex must have adequate road access because roads are a means of public transportation used by the community to support daily activities. Road infrastructure makes transportation easier and allows people to carry out activities. The road
Hanifah Asnur, Ridha Sari, Rini Yunita, Sutria Desman   +3 more
doaj   +1 more source

A Semi-Empirical Method for Predicting Soil Void Ratio from CPTu Data via Soil Density Correlation

Applied Sciences
Soil void ratio is a key parameter in geotechnical engineering design and geological hazard prevention. However, existing methods for determining void ratio are plagued by issues such as difficulty in sampling, susceptibility of samples to disturbance ...
Xiang Meng, Hongfei Duan, Mingyu Liu, Gaoshan Li, Zhongnian Yang, Wei Shi, Xianzhang Ling   +6 more
doaj   +1 more source