Results 71 to 80 of about 49,056 (193)

Cyathula prostrata (pasture weed).

open access: yes, 2020
Abstract Cyathula prostrata is an annual to short-lived perennial herb native to Africa and Asia and some parts of Oceania, now found naturalized elsewhere in Oceania and in South and Central America. It grows as a weed in cultivated land, roadsides, grazing land, along seashores and in primary and secondary forests and is classed as
openaire   +1 more source

Imported seed weevils attack initalian and milk thistles in southern California

open access: yesCalifornia Agriculture, 1974
ITALIAN THISTLE, Carduus pycnocephalus. L., and milk thistle, Silybum marianum (L.) Gaertn., alien weeds of Eurasian origin, have been studied since 1966 as targets of biological control in southern California. Found mainly in the coastal counties, these
R Goeden, D Ricker
doaj  

Banco de sementes em cerrado sensu stricto sob queimada e sistemas de cultivo Seedbanks in cerrado sensu stricto under burning and cultivation system

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar o efeito de queimada e de sistemas de cultivo sobre o banco de sementes em solo de Cerrado. Foi realizada amostragem em área sob cerrado sensu stricto queimada e não queimada, assim como em área de pastagem e lavoura
Fernanda Satie Ikeda   +3 more
doaj   +1 more source

The economic costs of weeds on productive land in New Zealand

open access: yesInternational Journal of Agricultural Sustainability, 2017
Here we review published research on the costs of weeds to New Zealand’s pastoral, arable and forestry sectors, and propose an alternative dynamic approach for future research.
J. T. Saunders   +7 more
doaj   +1 more source

Organic-Conventional Dairy Systems Trial in New Zealand: Four Years’ Results [PDF]

open access: yes, 2005
The Organic-Conventional Comparative Dairy Systems trial at Massey University began in August 2001, and the organic farmlet achieved certification in August 2003.
Butcher, Natalie   +9 more
core  

Promoción de raigrás anual naturalizado (Lolium multiflorum L.) en la cuenca del río Salado. Evaluación de la producción invernal de forraje en pastoreo [PDF]

open access: yes, 2013
Effective operation of grazing production systems needs control the production of forage at farm level. A nine year old stand of enhanced tame native ryegrass (Lolium multiflorum L.) (RGE) and an annual crop of Italian ryegrass (Lolium multiflorum L.
Colombatto, Dario   +3 more
core  

The role of grazier motivations and risk attitudes in the adoption of grazing best management practices [PDF]

open access: yes
The onus on landholders in relation to environmental performance is ever increasing. One tool for achieving environmental improvements is the design and promotion of region-specific ‘best management practices’ (BMPs).
Greiner, Romy   +2 more
core   +1 more source

The effect of organic farming systems on aspects of the environment - desk study OF0123 [PDF]

open access: yes, 1995
Key Conclusions 1. The crop rotations of organic systems maintain landscape diversity and biodiversity whilst the maintenance of field boundaries on organic units produces benefits to a wide range of organisms. 2. Inorganic nitrogen fertilisation and
Bailey, Steven   +5 more
core  

COMPORTAMENTO INGESTIVO E RESPOSTAS FISIOLÓGICAS DE NOVILHOS NELORE EM DIFERENTES CONDIÇÕES DE PASTEJO

open access: yesCiência Animal Brasileira, 2012
This study aimed to evaluate the ingestive behavior and physiological responses of steers under different grazing conditions. Five Nellore steers, weighing an average of 390.78 ± 14 kg BW, were assigned to five experimental treatments: clean pasture ...
Cleiton Luiz Tonello   +5 more
doaj  

Sustainability, Externalities and Economics: The Case of Temperate Perennial Grazing Systems in NSW [PDF]

open access: yes
The replacement of perennial grass species by undesirable annual grass weeds not only results in lower productivity but is also contributes to a range of external costs.
Dowling, Peter, Jones, Randall E.
core   +1 more source

Home - About - Disclaimer - Privacy