Effects of Organic and Chemical Agriculture Systems on Arbuscular Mycorrhizal Fungi and Green Tomato Production in Calakmul, Mexico

• 作者: Alejandro Morón-Ríos Ana Aguilar-Chama Jorge Castellanos-Albores José Armando Alayón-Gamboa Roger Guevara Yuriko Pilar Cruz-Koizumi
• 来源期刊: 农业科学(英文)
• 学科: 医学
• 关键词: VERMICOMPOST Agrochemical FERTILIZATION BIODIVERSITY
• 年，卷（期）: 2018,（9）
• 页码范围: 1145-1167
• 页数: 23页
• 分类号: R73

摘要

Organic agriculture is increasingly used as an alternative to conventional agriculture due to its positive impact on the health of ecosystems and agroecosystems. However, the outcome of organic agriculture in terms of the production of various crops remains uncertain due to the influence of many variables, rising questions about its advantages over conventional agriculture. This study assessed the impacts of organic agricultural system on arbuscular mycorrhizal (AM) fungi diversity in soil and green tomato (Physalis ixocarpa Brot. ex Horn) crop production. A field experiment was conducted using a random block design with five repetitions of the following treatments: a) Control (no fertilization, NF);b) Vermicompost use (OTV);c) OTV with vermicompost leaching (OTH);and d) Inorganic fertilization (CST). Throughout the crop cycle, soil samples were analyzed chemically, the relative growth rate (RGR) of the plants was measured, and the colonization and diversity of AM fungi were quantified in roots and soil;finally, above-ground, root biomass, and fruit production were measured. Organic fertilization (OTV, OTH) increased (p p > 0.05). It is concluded that organic agriculture management is essential to promote a greater AM fungi diversity and fungi root colonization. Plant-AM fungi interaction increases growth rates and it allows a similar tomato production compared with conventional agriculture.