Authors: M A Jianfeng Eiichi Takahashi
Publish Date: 2014/01/13
Volume: 133, Issue: 2, Pages: 151-155
Abstract
In a pot experiment the effect of silicate on P availability for rice grown in a Pdeficient soil with and without flooding was analyzed Treatments were designed as follows C control Yakuno soil SS sodium silicate application at 047 mg Si g1 soil and SC sodium carbonate application In order to separate pH effect from Si effect SC was adjusted to the same pH as SSSoil pH of SS and SC increased by 10 unit Shoot dry weight of SC plants and more so of SS plants increased under both nonflooded and flooded conditions P concentrations in the shoots were not increased under either condition of SS and SC With SS Si concentration in the shoots significantly increased Mn concentration significantly decreased resulting in a higher P/Mn ratio in the shoot but not with SC Both SS and SC increased N concentration in the shoots nearly two times compared with control under both conditions
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