U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Agronomy Remove constraint Journal name: Agronomy Publication year rev 7979-2021 Remove constraint Publication year rev: 7979-2021 Source 2021 v.11 no.4 Remove constraint Source: 2021 v.11 no.4
Start Over

Search

201  Search Results

« Previous | 1 - 20 of 201 |
Number of results to display per page

Search Results

1. Acclimation to Ex Vitro Conditions in Ninebark

Author:
Katarzyna Jagiełło-Kubiec; Karolina Nowakowska; Aleksandra Józefina Łukaszewska; Andrzej Pacholczak
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Physocarpus opulifolius; abscisic acid; acclimation; agronomy; greenhouses; leaf anatomy; leaf thickness; mesophyll; micropropagation; parenchyma (plant tissue); photosynthesis; plant growth; plant height; plantlets; sodium; soil; solar radiation; stomatal conductance; supplementary lighting
Abstract:
... Acclimation is the final phase of micropropagation and often decisive for its economic output. The aim of the experiments was to evaluate the effect of abscisic acid (ABA) and supplementary light on acclimation and leaf anatomy of the in vitro-rooted plants of ninebark (Physocarpus opulifolius L.). The initial material came from 8–10-week-old in vitro cultures on ½MS supplemented with 1 mg·L⁻¹ IBA ...
DOI:
10.3390/agronomy11040612

2. Alfalfa Forage Production and Nutritive Value, Fermentation Characteristics and Hygienic Quality of Ensilage, and Soil Properties after Broiler Litter Amendment

Author:
Annesly Netthisinghe; Paul Woosley; Naomi Rowland; Todd Willian; Becky Gilfillen; Karamat Sistani
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Clostridium botulinum; Medicago sativa; agronomy; alfalfa; animal health; botulism; fermentation; forage production; forage yield; haylage; hygiene; nutritive value; poultry manure
Abstract:
... Recycling broiler litter (BL) nutrients is an important strategy for sustainable forage production. However, BL can contain Clostridia bacteria that can contaminate forages at harvest, resulting in poor ensilage quality and botulism-related animal health risks. A better understanding of the effects of BL amendment on alfalfa (Medicago sativa L.) production and ensiling is beneficial for promoting ...
DOI:
10.3390/agronomy11040701

3. Altered Nitrogen Availability in Pea–Barley Sole- and Intercrops Changes Dominance of Two Nitrophilic Weed Species

Author:
Ortrud Jäck; James Ajal; Martin Weih
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Chenopodium album; Galeopsis; Hordeum vulgare; Pisum sativum; agronomy; barley; biomass; community structure; crop yield; mineralization; nitrogen; nitrogen fertilizers; nitrogen fixation; peas; soil; total nitrogen; weed control; weeds
Abstract:
... Effective and sustainable weed management in agricultural fields is a prerequisite for increasing crop yield without negatively impacting the environment. The aim of this study was to explore how varying nitrogen (N) availability in cropping arrangements of pea (Pisum sativum) and barley (Hordeum vulgare) grown as sole crops and intercrops at different fertilization levels and considering differen ...
DOI:
10.3390/agronomy11040679

4. Amaranthus retroflexus L. (Redroot Pigweed): Effects of Elevated CO2 and Soil Moisture on Growth and Biomass and the Effect of Radiant Heat on Seed Germination

Author:
Sandra Weller; Singarayer Florentine; Muhammad Mansoor Javaid; Amali Welgama; Aakansha Chadha; Bhagirath Singh Chauhan; Christopher Turville
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Amaranthus retroflexus; agronomy; biomass production; carbon dioxide; carbon dioxide enrichment; climate change; drought; dry matter partitioning; heat; herbicide resistance; light intensity; no-tillage; plant height; seed germination; soil water; taxonomy; water stress; weeds; North America
Abstract:
... Amaranthus retroflexus L. (Amaranthaceae), Redroot pigweed, is native to North America, but has become a weed of agriculture worldwide. Previous research into competition with food crops found it significantly reduces yields. Additionally, taxonomy, biomass allocation, physiological responses to light intensity, water stress, elevated CO₂, and herbicide resistance have been investigated. To extend ...
DOI:
10.3390/agronomy11040728

5. Annual Net Primary Productivity of Different Functional Groups as Affected by Different Intensities of Rainfall Reduction in the Semiarid Grasslands of the Gauteng Province in South Africa

Author:
Thabo Patrick Magandana; Abubeker Hassen; Eyob H. Tesfamariam
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; ecosystems; forbs; grasses; grasslands; net primary productivity; rain; rain intensity; rangelands; soil water; species diversity; South Africa
Abstract:
... Rainfall variability is expected to change the soil water regime thereby impacting negatively on rangeland species composition, productivity and ecosystem services. The aim of this study was to assess the impact of different intensities of rainfall reduction (RR) on vegetation annual net primary productivity (ANPP). Twenty 7 × 7 m experimental plots with different intensities of RR structures cons ...
DOI:
10.3390/agronomy11040730

6. Application of DSSAT CERES-Maize to Identify the Optimum Irrigation Management and Sowing Dates on Improving Maize Yield in Northern China [Erratum: January 2022, v.12(1)]

Author:
Patrick Rugira; Juanjuan Ma; Lijian Zheng; Chaobao Wu; Enke Liu
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Zea mays; aboveground biomass; agronomy; basins; corn; crop yield; irrigation rates; irrigation water; leaf area index; model validation; models; phenology; rain; soil water content; sustainable development; water use efficiency; China
Abstract:
... The increase in irrigated maize plantings in Northern China has increased the demand for irrigation water in the region, resulting in chronic water shortages in drier years. Efficient irrigation and water use are essential for the sustainable development and management of water resources in the area. This research applied DSSAT-maize in the Loess Plateau (Fenhe basin) to determine the suitable irr ...
DOI:
10.3390/agronomy11040674

7. Application of UV-C Irradiation to Rosa x hybrida Plants as a Tool to Minimise Macrosiphum rosae Populations

Author:
Anastasios I. Darras; Panagiotis J. Skouras; Panagiotis Assimomitis; Chara Labropoulou; George J. Stathas
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Macrosiphum rosae; Rosa; adults; agronomy; carbon dioxide; fecundity; greenhouses; instars; irradiation
Abstract:
... UV-C irradiation is known to enhance plant resistance against insect pests. In the present study, we evaluated the effects of low doses of UV-C on Macrosiphum rosae infesting greenhouse rose (Rosa x hybrida) plants. The application of 2.5-kJ/m² UV-C irradiation on rose leaves before infestation induced anti-herbivore resistance and negatively affected the aphid fecundity. No eggs and first instar ...
DOI:
10.3390/agronomy11040702

8. Assessing the Impact of Rice Cultivation and Off-Season Period on Dynamics of Soil Enzyme Activities and Bacterial Communities in Two Agro-Ecological Regions of Mozambique

Author:
Obinna T. Ezeokoli; Valter N. A. Nuaila; Chinedu C. Obieze; Belo A. Muetanene; Irene Fraga; Maria Natalia Tesinde; Alexis Ndayiragije; João Coutinho; Ana M. P. Melo; Rasheed A. Adeleke; Ana I. Ribeiro-Barros; David Fangueiro
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Agromyces; Desulfuromonas; Lysobacter; Micromonospora; Rubrobacter; Sphingomonas; acid phosphatase; agronomy; bacterial communities; electrical conductivity; fallow; rice; soil; soil ecosystems; soil enzymes; soil productivity; soil quality; Mozambique
Abstract:
... Soil ecosystem perturbation due to agronomic practices can negatively impact soil productivity by altering the diversity and function of soil health determinants. Currently, the influence of rice cultivation and off-season periods on the dynamics of soil health determinants is unclear. Therefore, soil enzyme activities (EAs) and bacterial community compositions in rice-cultivated fields at posthar ...
DOI:
10.3390/agronomy11040694

9. Assessment of Drought and Heat Tolerance of Durum Wheat Lines Derived from Interspecific Crosses Using Physiological Parameters and Stress Indices

Author:
Hafid Aberkane; Bouchra Belkadi; Zakaria Kehel; Abdelkarim Filali-Maltouf; Izzat S. A. Tahir; Sara Meheesi; Ahmed Amri
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; biomass; canopy; drought; drought tolerance; durum wheat; genetic variation; grain yield; heading; heat; heat stress; heat tolerance; heritability; normalized difference vegetation index; photosystem II; stress tolerance; temperature; vegetative growth; water stress; Morocco; Sudan
Abstract:
... Drought and high temperature are the major abiotic stresses for wheat production. The present study investigated the effect of drought and chronic heat stress on physiological parameters of durum wheat lines derived from interspecific crosses and their association with yield. Seventy-seven durum wheat lines were evaluated during two seasons (2016–2017 and 2017–2018) for drought tolerance at Tessao ...
DOI:
10.3390/agronomy11040695

10. Assuring Effectiveness in Consumer-Oriented Traceability; Suggestions for Food Label Design

Author:
Angelo Corallo; Maria Elena Latino; Marta Menegoli; Roberta Pizzi
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; asymmetry; consumer preferences; consumer satisfaction; farm to fork; food safety; foods; information transparency; readability; traceability
Abstract:
... Traceability is an important tool used by food companies and regulators in assuring food safety and quality, especially when consumers’ needs for food information transparency are the driver. Consumers consult the label to find out more details about a food product and, although many factors influence their perceptions and purchasing acts, the label remains the primary means of communicating food ...
DOI:
10.3390/agronomy11040613

11. Bio-Based Value Chains Potential in the Management of Cacao Pod Waste in Colombia, a Case Study

Author:
Diana C. Meza-Sepúlveda; Ana M. Castro; Annie Zamora; Jorge W. Arboleda; Adriana M. Gallego; Anyela V. Camargo-Rodríguez
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agricultural wastes; agronomy; bioeconomics; biomass; case studies; crop production; energy; hulls; markets; pollution; surveys; Colombia
Abstract:
... Agriculture generates 11.4 billion tons of biomass worldwide, including residues from crop production and industrial processing. Improper disposal of agricultural residues results in environmental pollution and the waste of valuable biomass resources. Management of agricultural waste is particularly suboptimal in developing countries where low added-value traditional practices to manage the residu ...
DOI:
10.3390/agronomy11040693

12. Biochar for Circular Horticulture: Feedstock Related Effects in Soilless Cultivation

Author:
Fien Amery; Jane Debode; Sarah Ommeslag; Rian Visser; Caroline De Tender; Bart Vandecasteele
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; biochar; biomass; calcium; chlorophyll; disease control; electrical conductivity; feedstocks; fertilizers; greenhouse experimentation; horticulture; lignocellulose; mechanism of action; nutrient uptake; peat; phosphorus; plant growth; potassium; soilless culture; strawberries; wood
Abstract:
... Biochar has previously been used in growing media blends as fertilizer or for improving plant growth, disease suppression, and as a sustainable replacement of peat. To achieve optimal circular horticulture, we propose here to reuse the biochar from spent growing media. However, it is unclear to what extent the biochar feedstock determines the mode of action of the biochar and if use of spent growi ...
DOI:
10.3390/agronomy11040629

13. Bioconversion Process of Barley Crop Residues into Biogas—Energetic-Environmental Potential in Spain

Author:
Carlos Morales-Polo; María del Mar Cledera-Castro; Marta Revuelta-Aramburu; Katia Hueso-Kortekaas
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; anaerobic digestion; barley; biogas; biotransformation; cost effectiveness; crop residues; energy efficiency; hydrogen production; malt; methane; power plants; sludge; sustainable development; upflow anaerobic sludge blanket reactor; Spain
Abstract:
... Barley fields reach 1.7 million hectares in Spain, of which 320,000 are used to produce malt, generating 450,000 tons of crop residue from barley intended for malt production. One way to treat this waste in an environmentally sound, energy-sustainable and economically cost-effective manner is anaerobic digestion. The biogas generated can be used as fuel and as a renewable source of energy (providi ...
DOI:
10.3390/agronomy11040640

14. Bioherbicidal Properties of Parthenium hysterophorus, Cleome rutidosperma and Borreria alata Extracts on Selected Crop and Weed Species

Author:
Mst. Motmainna; Abdul Shukor Juraimi; Md. Kamal Uddin; Norhayu Binti Asib; A. K. M. Mominul Islam; Mahmudul Hasan
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Abelmoschus esculentus; Ageratum conyzoides; Amaranthus tricolor; Cleome; Echinochloa colona; Euphorbia hirta; Oryza sativa; Parthenium hysterophorus; Spermacoce alata; Zea mays; agronomy; greenhouses; herbicides; hypocotyls; laboratory experimentation; leaves; methanol; phytotoxicity; rice; seed germination; survival rate; weed control; weeds
Abstract:
... Natural product-based herbicides could be the effective alternatives to synthetic chemical herbicides for eco-friendly weed management. This research, therefore, was conducted to identify the phytotoxic properties of Parthenium hysterophorus L., Cleome rutidosperma DC. and Borreria alata (Aubl.) DC. with a view to introducing them as a tool for natural herbicide development. The methanol extracts ...
DOI:
10.3390/agronomy11040643

15. Biostimulant Application Improves Yield Parameters and Accentuates Fruit Color of Annurca Apples

Author:
Claudio Di-Vaio; Aurora Cirillo; Danilo Cice; Christophe El-Nakhel; Youssef Rouphael
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; apples; color; exocarp; firmness; flavor; fruit color; fruit weight; human health; macroalgae; microalgae; pH; titratable acidity; Italy
Abstract:
... The Annurca apple is a typical fruit from Southern Italy that is notable for its high firmness and characteristic flavor, and presents positive effects on human health. The aim of the present study was to improve the agronomic characteristics of Annurca trees and the quality of their fruits by the use of plant biostimulants. We performed the study with three biostimulants (protein hydrolysates, se ...
DOI:
10.3390/agronomy11040715

16. Breeding and Genetics of Forages for Semi-Arid and Arid Rangelands

Author:
Joseph G. Robins
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Camelus; Capra hircus aegarus; Equus; Ovis aries; agronomy; beef; camels; dairy cattle; genetics; goats; horses; rangelands; sheep
Abstract:
... Rangelands are the Earth’s largest land type and provide the feed source for the extensive grazing of beef and dairy cattle (Bos taurus), sheep (Ovis aries), goat (Capra aegagrus hircus), horse (Equus ferus caballus), camel (Camelus spp [...] ...
DOI:
10.3390/agronomy11040718

17. Cactus Pear as Roughage Source Feeding Confined Lambs: Performance, Carcass Characteristics, and Economic Analysis

Author:
Kleitiane Balduíno da Silva; Juliana Silva de Oliveira; Edson Mauro Santos; João Paulo de Farias Ramos; Felipe Queiroga Cartaxo; Patrícia Emília Naves Givisiez; Aelson Fernandes do Nascimento Souza; Gabriel Ferreira de Lima Cruz; José Maria César Neto; Joyce Pereira Alves; Daniele de Jesus Ferreira; Anny Graycy Vasconcelos de Oliveira Lima; Anderson de Moura Zanine
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Cenchrus ciliaris; agronomy; cactus pears; cold; crossbreds; diet; digestibility; dry matter intake; economic analysis; forage; males; nutrient intake; roughage; slaughter weight; weight gain; wheat bran
Abstract:
... The effect of diets containing 0% of wheat bran levels (control buffel grass and cactus pear) contrasted with diets with cactus pear as the only forage source and wheat bran levels (30; 37 and 44%) on nutrient digestibility, feed intake, animal performance, carcass characteristics, and economic analysis was evaluated. Twenty-eight male, non-castrated crossbred lambs (22.6 ± 2.37 kg) were submitted ...
DOI:
10.3390/agronomy11040625

18. Can Grazing Moderate Climatic Effects on Herbage Nutritional Quality?

Author:
Guy Dovrat; Efrat Sheffer; Serge Yan Landau; Tova Deutch; Haim Gorelik; Zalmen Henkin
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agronomy; meteorological data; nutritive value; pastures; prediction; spring; temperate zones; winter; Israel
Abstract:
... In Mediterranean grasslands, the composition of vegetation and its nutritional quality for animals are strongly affected by the climatic conditions prevailing during winter and spring. Therefore, these seasonal ecosystems provide an opportunity to examine how variability in climatic conditions affects the regeneration and quality of pasture vegetation. The intensity of grazing in this seasonal sys ...
DOI:
10.3390/agronomy11040700

19. Can We Use Machine Learning for Agricultural Land Suitability Assessment?

Author:
Anders Bjørn Møller; Vera Leatitia Mulder; Gerard B. M. Heuvelink; Niels Mark Jacobsen; Mogens Humlekrog Greve
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
agricultural land; agronomy; land suitability; land use; mechanistic models; Denmark
Abstract:
... It is vital for farmers to know if their land is suitable for the crops that they plan to grow. An increasing number of studies have used machine learning models based on land use data as an efficient means for mapping land suitability. This approach relies on the assumption that farmers grow their crops in the best-suited areas, but no studies have systematically tested this assumption. We aimed ...
DOI:
10.3390/agronomy11040703

20. Changes in the Bio-Availability of Phosphorus in Pyrochars and Hydrochars Derived from Sewage Sludge after Their Amendment to Soils

Author:
Marina Paneque; José María de la Rosa; Antonio F. Patti; Heike Knicker
Source:
Agronomy 2021 v.11 no.4 pp. -
ISSN:
2073-4395
Subject:
Cambisols; Lolium perenne; agronomy; bioavailability; hydrochars; hydrothermal carbonization; phosphates; phosphorus; phosphorus fertilizers; plant growth; pyrolysis; sewage sludge; soil pH; solubilization
Abstract:
... The expected shortage of global phosphate has enforced the search for alternative resources for P fertilizers. Therefore, the present study focuses on the turnover of phosphorus (P) of hydrochars and pyrochars derived from sewage sludge (SS) in soils during plant growth. We designed a pot experiment in which Lolium perenne L. was allowed to grow on a Calcic Cambisol amended with SS-derived chars. ...
DOI:
10.3390/agronomy11040623