Journal ArticleDOI
Yield and fruit quality of four sweet corn hybrids (Zea mays) under conventional and integrated fertilization with vermicompost
Reads0
Chats0
TLDR
It is confirmed that the use of organic fertilizers such as vermicompost has a positive effect on crop yield and quality, indicating the complexity of the organic amendment-plant interactions and the importance of controlling genetic variation when studying the effects of verMicompost on plant growth.Abstract:
BACKGROUND: Vermicompost has been proposed as a valuable fertilizer for sustainable agriculture. The effects of vermicompost on yield and quality of sweet corn were evaluated in this study. In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer, and integrated fertilization regimes in which 75% of the nutrients were supplied by the inorganic fertilizer and 25% of the nutrients were supplied by either (ii) rabbit manure, or (iii) vermicompost. All three types of fertilization regime were supplied at two doses. Two pairs of nearly isogenic sweet corn hybrids homozygous for sugary1 and shrunken2 mutants were included in the trials to explore fertilizer × genotype interactions. Growth, yield and ear quality of the plants were evaluated in relation to the three fertilization regimes. RESULTS: In general, the integrated regimes yielded the same productivity levels as the conventional treatment. Moreover, both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear. Nevertheless, most of the observed effects of the organic fertilizers were genotype-dependent. CONCLUSION: The results confirm that the use of organic fertilizers such as vermicompost has a positive effect on crop yield and quality. Nevertheless, these effects were not general, indicating the complexity of the organic amendment-plant interactions and the importance of controlling genetic variation when studying the effects of vermicompost on plant growth.read more
Citations
More filters
Are organic foods safer or healthier than conventional alternatives? a systematic review
TL;DR: The published literature lacks strong evidence that organic foods are significantly more nutritious than conventional foods, and consumption of organic foods may reduce exposure to pesticide residues and antibiotic-resistant bacteria.
Journal ArticleDOI
Are Organic Foods Safer or Healthier Than Conventional Alternatives?: A Systematic Review
Crystal Smith-Spangler,Margaret L. Brandeau,Grace E. Hunter,J. Clay Bavinger,Maren Pearson,Paul J. Eschbach,Vandana Sundaram,Hau Liu,Patricia Schirmer,Christopher D Stave,Ingram Olkin,Dena M. Bravata +11 more
TL;DR: In this paper, the authors reviewed evidence comparing the health effects of organic and conventional foods and found no significant differences between populations by food type for allergic outcomes (eczema, wheeze, atopic sensitization) or symptomatic Campylobacter infection.
Journal ArticleDOI
Plant genotype strongly modifies the structure and growth of maize rhizosphere microbial communities
Manuel Aira,María Gómez-Brandón,María Gómez-Brandón,Cristina Lazcano,Erland Bååth,Jorge Domínguez +5 more
TL;DR: Although microorganisms clearly responded to dose of fertilization, the three fertilizers also contributed to differentiate rhizosphere microbial communities, and larger plants did not promoted higher biomass or microbial growth rates suggesting complex interactions between plants and fertilizers.
Journal ArticleDOI
Impact of compost, vermicompost and biochar on soil fertility, maize yield and soil erosion in Northern Vietnam: A three year mesocosm experiment
TL;DR: It is shown for the first time that the combination of vermicompost and biochar may not only improve plant productivity but also reduce the negative impact of agriculture on water quality.
Journal ArticleDOI
The use of vermicompost in organic farming: overview, effects on soil and economics
TL;DR: The effects of vermicompost on soil fertility physically, chemically and biologically are discussed and future prospects and economy on the use of organic fertilizers in the agricultural sector are examined.
References
More filters
Journal ArticleDOI
Agricultural sustainability and intensive production practices
David Tilman,Kenneth G. Cassman,Pamela A. Matson,Pamela A. Matson,Rosamond L. Naylor,Stephen Polasky +5 more
TL;DR: A doubling in global food demand projected for the next 50 years poses huge challenges for the sustainability both of food production and of terrestrial and aquatic ecosystems and the services they provide to society.
Journal ArticleDOI
The evolution of apical dominance in maize
TL;DR: The cloned teosinte branched1 (tb1) gene encodes a protein with homology to the cycloidea gene of snapdragon and suggests that tb1 acts both to repress the growth of axillary organs and to enable the formation of female inflorescences.
Book
SAS for Mixed Models, Second Edition
Ramon C. Littell,George A. Milliken,Walter W. Stroup,Russell D. Wolfinger,Oliver Schabenberger +4 more
TL;DR: Professionals and students with a background in two-way ANOVA and regression and a basic knowledge of linear models and matrix algebra will benefit from the topics covered.
Journal ArticleDOI
Humic acids isolated from earthworm compost enhance root elongation, lateral root emergence, and plasma membrane H+-ATPase activity in maize roots
Luciano Pasqualoto Canellas,Fábio Lopes Olivares,Anna L. Okorokova-Façanha,Arnoldo Rocha Façanha +3 more
TL;DR: Investigating the effects of humic acids isolated from cattle manure earthworm compost on the earliest stages of lateral root development and on the plasma membrane H+-ATPase activity reveals the presence of exchangeable auxin groups in the macrostructure of the earthworms compost HA.
Journal ArticleDOI
Nutrient availability and management in the rhizosphere: exploiting genotypic differences
Zed Rengel,Petra Marschner +1 more
TL;DR: Understanding the role of plant-microbe-soil interactions in governing nutrient availability in the rhizosphere will enhance the economic and environmental sustainability of crop production.