Mixed Cropping Effects on Yield, Manganese Influx, and Manganese Depletion in the Rhizosphere of Fodder Crops Grown in Manganese-Deficient Soil

Autor:	Sumeet Arneja, U. S. Sadana
Rok vydání:	2012
Předmět:	Rhizosphere Fodder crops fungi food and beverages Soil Science chemistry.chemical_element Manganese Biology Agronomy chemistry Yield (chemistry) Shoot Growth rate Monoculture Agronomy and Crop Science Cropping
Zdroj:	Communications in Soil Science and Plant Analysis. 43:533-540
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103624.2012.639425
Popis:	To examine the possibility of managing manganese (Mn) deficiency through mixed cropping, berseem was grown as a monoculture and in mixed cropping with oats, ryegrass, or raya in a Mn-deficient soil under screen-house conditions. In no-Mn berseem monoculture treatment, shoot dry weight (SDW) and root length (RL) were, respectively, 33% and 45% of the maximum recorded values obtained with berseem grown in mixed cropping with ryegrass at 60 days of growth. Corresponding values of SDW and RL of berseem when grown with raya were 78% and 76% of the maximum, respectively. Even though berseem grown in mixed cropping with ryegrass and raya had smaller RL/SDW ratio and greater shoot growth rate than berseem grown as monoculture, it acquired a high shoot Mn concentration because of 3.8 times more Mn influx. A high Mn influx was the result of a high concentration gradient that developed because of depletion of Mn at the root surface.
Databáze:	OpenAIRE
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