Effect of Synthetic Soil Aggregates as a Soil Ameliorant to Enhance Properties of Problematic Gray ('Jahgaru') Soils in Okinawa, Japan

Autor:	Kazutoshi Kinjo, G. Y. Jayasinghe, Yoshihiro Tokashiki, Makoto Kitou
Rok vydání:	2010
Předmět:	Soil organic matter fungi food and beverages Soil Science Soil science Soil carbon complex mixtures Soil management Soil conditioner Horticulture Soil structure Soil pH Soil water Environmental science Red soil Agronomy and Crop Science
Zdroj:	Communications in Soil Science and Plant Analysis. 41:649-664
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103620903533959
Popis:	Synthetic aggregates (SA) were developed using low productive red soil, paper, and starch waste and then utilized as a soil ameliorant to improve poor physical and chemical properties of a gray soil (“Jahgaru”). The gray soil was amended with SA at 10, 20, 30, 40, and 50% and then used for the cultivation of French marigold (Tagetes patula). The SA addition enhanced bulk density, porosity, water‐holding capacity, hydraulic conductivity, pH, organic matter, and carbon (C) content of original gray soil. Plant height, number of flowers per plant, shoot fresh weight, shoot dry weight, root length, root fresh weight, and root dry weight in 30% of SA addition were the greatest and were increased by 1.5, 2.9, 3.5, 4.7, 3.4, 4.3, and 9 times, respectively, compared to gray soil. It can be concluded that developed SA can be utilized as a soil ameliorant to improve poor physical and chemical properties of gray soil.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::16a9582eb1327869850f9e335a47e874 https://doi.org/10.1080/00103620903533959 Zobrazit plný text záznamu