Results 71 to 80 of about 8,400 (167)

Situación de las poblaciones valencianas del género Marsilea: medidas para su conservación. [PDF]

ESTRELLES, E., IBARS, A. M. & HERRERO-BORGOÑÓN, J. J. 2001. Situación de las poblaciones valencianas del género Marsilea: medidas para su conservación. Bot. Complutensis 25: 241-249. Se analiza la situación de las poblaciones valencianas de Marsilea
Estrelles, E., Herrero-borgoñón, J.J., Ibars, A.M.   +2 more
core   +1 more source

Phylogenetic Relationships, Character Evolution, and Two New Species in Hemiboea (Didymocarpoideae, Trichosporeae)

Ecology and Evolution, Volume 15, Issue 10, October 2025.
This paper describes two new species of Hemiboea based on molecular and morphological evidence. Furthermore, we trace the evolution of eight important morphological characters in Hemiboea, which indicates whether the involucre is early deciduous and whether there are two protuberances on the inner ventral surface of the corolla, which may be the key ...
Ping Liang, Xiao Wang, Fang Wen, Xin‐Xiang Bai, Jun Mu   +4 more
wiley   +1 more source

Soil physical properties and grape yield influenced by cover crops and management systems

Revista Brasileira de Ciência do Solo, 2013
The use of cover crops in vineyards is a conservation practice with the purpose of reducing soil erosion and improving the soil physical quality. The objective of this study was to evaluate cover crop species and management systems on soil physical ...
Jaqueline Dalla Rosa, Alvaro Luiz Mafra, João Carlos Medeiros, Jackson Adriano Albuquerque, Davi José Miquelluti, Marcos André Nohatto, Evandro Zacca Ferreira, Odoni Loris Pereira de Oliveira   +7 more
doaj   +1 more source

Introduction of new forage technology in North Vietnam using participatory approaches : experiences and lessons learned [PDF]

, 2006
Agriculture plays an important socio-economic role in Vietnam. Animal production is expanding due to the continuous increase in demand resulting from high demographic growth in urban areas and changing food habits.
Le Hoa Binh,, Nguyen Thi Hoa Ly,, Salgado, Paulo, Tran Van Thu,   +3 more
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Regenerative soil treatments with alginite, mulch, and cover crops under minimum tillage: Impacts on soil organic matter content and quality in a 3‐year study

Agronomy Journal, Volume 117, Issue 5, September/October 2025.
Abstract The degradation of arable land globally, largely due to declining soil organic matter (SOM), is a pressing issue. SOM is essential for various soil functions and significantly influences soil quality and health. Our study aimed to compare soil regenerative management methods for soil quality and basic essential functions and their ...
Sándor Attila Pabar, Zsolt Kotroczó, Borbála Biró, Tünde Takács   +3 more
wiley   +1 more source

Infiltração de água em um podzólico vermelho-escuro sob dois métodos de preparo, usando chuva simulada com duas intensidades

Revista Brasileira de Ciência do Solo, 1999
Realizou-se no campo, num Podzólico Vermelho-Escuro, um experimento, para estudar a taxa de infiltração, tempos de empoçamento e início de escoamento superficial de água, sob preparo convencional e plantio direto, usando chuva simulada de intensidades ...
M. C. Alves, M. S. V. Cabeda
doaj   +1 more source

Flower Garden Banks National Marine Sanctuary: A rapid assessment of coral, fish, and algae using the AGRRA Protocol [PDF]

, 2000
The Flower Garden Banks are topographic features on the edge of the continental shelf in the northwest Gulf of Mexico. These banks are approximately 175 km southeast of Galveston, Texas at 28° north latitude and support the northernmost coral reefs on ...
Gittings, Stephen R., Pattengill-Semmens, Christy, Shyka, Thomas   +2 more
core  

Reação de diferentes culturas para controlar Meloidogyne ethiopica [PDF]

, 2009
Dois experimentos foram realizados em casa de vegetação, visando a caracterização de resistência ou suscetibilidade de 52 espécies vegetais a Meloidogyne ethiopica e os seus possíveis efeitos adversos sobre a população do nematóide, em condições de casa ...
Carneiro, Regina Maria Dechechi Gomes, Carneiro, Rui Gomes, Lima, Edriana Araújo de, Mattos, Jean Kleber de Abreu, Moita, Antônio Williams   +4 more
core   +1 more source

Carbon and nitrogen release from cover crop roots is poorly predicted by their chemical composition

Agronomy Journal, Volume 117, Issue 5, September/October 2025.
Abstract Root‐derived carbon (C) and nitrogen (N) release in relation to chemical composition has rarely been quantified in field studies. The objectives of this study were to evaluate C and N release from six summer cover crop roots and to correlate it with their chemical composition. Root decomposition and N release from velvet bean (Mucuna aterrima),
Douglas Adams Weiler, Celso Aita, Raquel Schmatz, Guilherme Dietrich, Bruno Chaves, Janquieli Schirmann, Guilherme Jurkevicz Delben, Sandro José Giacomini   +7 more
wiley   +1 more source

Las gesneriáceas de los departamentos de Boyacá y Cundinamarca, Cordillera Oriental Colombiana

Acta Biológica Colombiana, 2005
Se estudiaron las gesneriáceas presentes en los departamentos colombianos de Boyacá y Cundinamarca, cordillera oriental andina. Se revisaron las colecciones depositadas en los herbarios COL, FMB y UPTC.
Laura Clavijo-R.
doaj