Results 41 to 50 of about 5,618 (212)

Comparação de métodos de estimação do tamanho ótimo de parcela em sorgo e crotalária spectabilis

open access: yesAgrarian, 2022
O objetivo deste trabalho foi comparar dois métodos de estimação do tamanho ótimo de parcela para avaliar a massa de matéria fresca de sorgo (Sorghum bicolor (L.) Moench) e crotalária spectabilis (Crotalaria spectabilis Roth.).
​Alberto Cargnelutti Filho   +4 more
doaj   +1 more source

The Monocrotaline Model of Hypertension Leads to Cachexia in Male but Not Female Mice

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 16, Issue 6, December 2025.
ABSTRACT Background The monocrotaline (MCT) model of cardiac cachexia is a pharmaceutical approach to pulmonary hypertension that has been used to study heart failure and muscle wasting in rodents; however, little is known of how this pyrrolizidine alkaloid leads to peripheral changes in organ function and body mass, and sex differences have not been ...
Abbey L. Politeski   +15 more
wiley   +1 more source

Crotalaria spectabilis Toxicity in Chickens.

open access: yesExperimental Biology and Medicine, 1960
SummaryConcentrations of 0.05% to 5% Crotalaria spectabilis seed were fed to chicks. All concentrations of the legume were shown to be toxic. Concentrations in excess of 0.3% produced death in all birds within 18 days. When less than 0.2% was fed there was a marked reduction in weight gain.
J R, ALLEN, G R, CHILDS, W W, CRAVENS
openaire   +2 more sources

Insecticides outweigh rye cover crop in triggering secondary pest outbreaks

open access: yesPest Management Science, Volume 81, Issue 12, Page 7971-7984, December 2025.
Insecticides outweigh rye cover crop in triggering secondary pest outbreaks. Zeus Mateos‐Fierro*, Ashley Leach, Ian Kaplan. Spider mite and melon aphid outbreaks are enhanced with broad‐spectrum insecticides, while natural enemies are reduced. However, rye cover crop has little effect on either pest or natural enemy populations.
Zeus Mateos‐Fierro   +2 more
wiley   +1 more source

Acúmulo e liberação de P, K, Ca e Mg em crotalária e milheto solteiros e consorciados

open access: yesRevista Ceres, 2010
As características das leguminosas e gramíneas usadas como plantas de cobertura são bastante conhecidas, mas a velocidade com que os nutrientes associados à biomassa vegetal tornam-se disponíveis às culturas é ainda pouco estudada.
Adriano Perin   +4 more
doaj   +1 more source

Crop performance and profitability for the initial transition years of a regenerative cropping system in the Upper Midwest United States

open access: yesJournal of Environmental Quality, Volume 54, Issue 6, Page 1572-1585, November/December 2025.
Abstract The transition from conventional to more regenerative cropping systems can be economically risky due to variable transition period yields and unforeseen costs. We compared yields and economic returns for the first 3 years of the transition from a business as usual (BAU) conventional corn (Zea mays)–soybean (Glycine max) rotation to an ...
Ashim Datta   +7 more
wiley   +1 more source

Influência dos elementos meteorológicos na produção de adubos verdes, em diferentes épocas de semeadura Influence of the meteorological elements in the production of green manures sown in different periods

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2003
Para se estudar a influência do saldo de radiação solar, temperatura do ar, precipitação e fotoperíodo no rendimento em fitomassa e na data de florescimento da Crotalaria juncea e da Mucuna aterrima, foi conduzido um experimento em São Vicente da Serra ...
Vanderley S. dos Santos   +1 more
doaj   +1 more source

Soil conditions and seeding rates influence outcomes of first‐year wiregrass (Aristida beyrichiana) restoration

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
We examined whether seeding rates and soil types affected the number, growth and survival of new seedlings of wiregrass (Aristida beyrichiana). We sowed seeds from wet and dry sites on wet and dry soils at three seeding rates. In the first year of restoration, the number of seedlings per plot was greatest at the highest seeding rate, and seedlings from
Jennifer M. Fill   +7 more
wiley   +1 more source

Influence of soil bulk density on shoot and root traits of crotalaria

open access: yesPesquisa Agropecuária Tropical, 2015
The selection of cover crop species with high potential for root growth in dense layers of soil can help in the management of agricultural systems through biological soil unpacking.
Leandro Pereira Pacheco   +4 more
doaj   +1 more source

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

open access: yesAgronomy 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   +7 more
wiley   +1 more source

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