Results 51 to 60 of about 97,140 (212)

Seed Traps Differ in Species Numbers, Seed Densities and Contamination but Mostly Do Not Reflect Grazing in a Pampa Grassland

open access: yesApplied Vegetation Science, Volume 29, Issue 2, April/June 2026.
Ground traps are more effective than adhesive traps in measuring seed rain species richness and density. They also allow to more closely resemble the seed production of the surrounding vegetation. Management‐driven differences in the vegetation were not reflected by the seed rain of any trap type, but the advantages and disadvantages of different trap ...
Alois Fundneider   +6 more
wiley   +1 more source

Restauración del bosque montano en suelos degradados: La fertilización temprana quintuplica el crecimiento postplantación de Polylepis australis

open access: yesEcología Austral, 2023
Los suelos montanos afectados por la pérdida de bosque, el fuego y la ganadería son más propensos a la erosión y, en consecuencia, a una degradación más rápida que afecta su fertilidad.
Paola A. Rocabado   +4 more
doaj   +1 more source

¿Por qué se destruyen los recursos naturales renovables? (II)

open access: yes, 2022
Most ecologists agree that the day is not far off when humanity will be short of food, the evil is getting worse every day as the population grows geometrically without control. The cases of India, China and Japan have shown the world an insufficient food system, depleting resources.
Universidad Cooperativa de Colombia   +1 more
openaire   +1 more source

Control mecánico del árbol no nativo Ligustrum lucidum (Oleaceae): supervivencia, regeneración y costos

open access: yesBoletín de la Sociedad Argentina de Botánica, 2019
Introducción y objetivos: Existe una creciente demanda de estudios que evalúen el costo-beneficio de la aplicación de técnicas de control de especies no nativas.
Tatiana Alejandra Valfré-Giorello   +3 more
doaj   +1 more source

Hydrogen peroxide in micropropagation of Lilium: A comparison with a traditional methodology [PDF]

open access: yes, 2006
The micropropagation of Lilium longiflorum requires adequate equipment which may not be afforded by small laboratories or producers. In this work we compared traditional methodology with a protocol that included easily available elements to sterilize ...
Curvetto, Nestor Raul   +2 more
core  

Disease Tolerance in Helianthus petiolaris: A Genetic Resource for Sunflower Breeding [PDF]

open access: yes, 2015
Argentina is a major sunflower producer in the world, with crop acreage of 2−2.7 million ha in the last four years. Sunflower crop yield is often influenced by sanitary constraints, mainly fungal pathogens.
Cantamutto, Miguel   +2 more
core   +1 more source

La crisis energética frente a los recursos naturales renovables.

open access: yes, 2023
All the country's soils are in the process of exhaustion or weariness, this is due to their misuse or management. This negative factor is greatly serious in numerous regions such as Boyacá, Santanderes, Nariño, Cundinamarca, Antioquia, Huila, old Caldas, in which a type of empirical or traditional agriculture is practiced, without mediating rational ...
Díaz Arbeláez, Bernardo   +1 more
openaire   +1 more source

RSR Calculator, a tool for the Calibration / Validation activities

open access: yesRevista de Teledetección, 2014
The calibration/validation of remote sensing products is a key step that needs to be done before its use in different kinds of environmental applications and to ensure the success of remote sensing missions.
C. Durán-Alarcón   +3 more
doaj   +1 more source

Spent Oyster Mushroom Substrate in a Mix with Organic Soil for Plant Pot Cultivation [PDF]

open access: yes, 2008
Disposal of spent mushroom substrates can pose a problem to the environment. The reuse in crop production by its recycling as an ingredient of growing mixes would provide an environmentally safe disposition.
Curvetto, Nestor Raul   +2 more
core   +1 more source

Effect of Planting Date, Clipping Height, and Cultivar on Forage and Grain Yield of Winter Wheat in Argentinean Pampas [PDF]

open access: yes, 2006
In Argentinean Pampas, new wheat (Triticum aestivum L.) cultivars are routinely introduced to farmers for dual-purpose production. The objective of this study was to evaluate the effect of planting date, clipping height on forage, and grain yield for ...
Arroquy, Jose Ignacio   +3 more
core   +1 more source

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