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Effect of Clay Content in Soil on Boron Uptake and Yield of Wheat
Author(s) -
Keren R.,
Bingham F. T.,
Rhoades J. D.
Publication year - 1985
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1985.03615995004900060027x
Subject(s) - chemistry , yield (engineering) , dry matter , agronomy , boron , clay soil , soil water , soil science , environmental science , biology , materials science , organic chemistry , metallurgy
The effect of total B content in soil on B uptake by wheat ( Triticum aestivum L.) and its effects on yield were studied for three soil‐sand mixtures at soil‐to‐soil + sand ratios of 1:3, 2:3, and 1. The results indicate that the higher the clay content of a soil, the lower is the B activity in solution for any given amount of B added. It was suggested that the soil adsorption sites act as a pool to which B can be stored or removed depending on the change in solution B concentration in soil. The B uptake by the plants is higher as the sand content increases, for any total amount of B added. However, the experimental results from all three soil‐sand mixtures lie on the same line when the B content in the shoot is plotted against B activity in soil solution ( r 2 = 0.9695). The dry matter of the plants was decreased with both an increase in total amount of B added and an increase in the sand content for any given amount of total B. As found for B uptake, the relative dry matter weight and the relative yield values lie on the same linear line when they are plotted against B activity in soil solution from all three soil systems. This indicates that the yield responds to B activity in soil solution only.