Depletion of plant-available silicon in soils: a possible cause of declining rice yields

• Published in: Communications in soil science and plant analysis Vol. 28; no. 13/14; pp. 1245 - 1252
• Main Authors: Savant, N.K, Datnoff, L.E, Snyder, G.H
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01-01-1997; Taylor & Francis
• Subjects: AGROECOSYSTEMS; Agronomy. Soil science and plant productions; Biological and medical sciences; CARACTERISTICAS DEL SITIO; CORRELATION; CROP YIELD; Deficiencies. Phytotoxicity of elements. Salinity; DISPONIBILIDAD DE NUTRIENTES; DISPONIBILITE D'ELEMENT NUTRITIF; DURABILITE; ECOSISTEMA; ECOSYSTEME; ECOSYSTEMS; FACTEUR LIE AU SITE; FERTILIDAD DEL SUELO; FERTILITE DU SOL; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; GESTION; MANAGEMENT; NUTRICION DE LAS PLANTAS; NUTRIENT AVAILABILITY; NUTRIENT MANAGEMENT; NUTRIENTES; NUTRIENTS; NUTRITION DES PLANTES; ORYZA SATIVA; PADDY SOIL; PLANT NUTRITION; PLANT PRODUCTION; PRODUCCION VEGETAL; PRODUCTION VEGETALE; RENDEMENT DES CULTURES; RENDIMIENTO DE CULTIVOS; SILICIO; SILICIUM; SILICON; SITE FACTORS; SOIL FERTILITY; Soil-plant relationships. Soil fertility. Fertilization. Amendments; SOL DE RIZIERE; SOSTENIBILIDAD; SUBSTANCE NUTRITIVE; SUELO DE ARROZALES; SUSTAINABILITY; World; Monocotyledones; Soil fertility; Cultivated soil; Available nutrient; Review; Inorganic element; Temperate zone; Cereal crop; Oryza sativa; Gramineae; Mineral fertilization; Angiospermae; SOIL TYPES; Paddy field; Silicon; Intertropical zone; Production system; Soil chemistry; Nutrition; Bioavailability; Agroecosystem; Depletion; Decrease; Spermatophyta; Yield; Soil plant relation
• ISSN: 0010-3624; 1532-2416
• DOI: 10.1080/00103629709369870

The phenomenon of yield decline in different rice ecosystems from many parts of the world has been reported to be associated with decreases in the effective nitrogen (N) supply from soil. However, many reports in the literature suggest that silicon (Si) is an agronomically essential element for sustainable rice production. Depletion of plant-available Si in soils where rice is grown could be a possible limiting factor contributing to declining yields. In order to address this problem of yield decline or stagnation, it seems necessary to survey Si status of soils and rice grown in different ecosystems throughout the world and develop region-specific integrated nutrient management systems that include the element Si