水稻施硅效应研究初报

A PRELIMINARY STUDY ON THE EFFCIENCY OF SILICON FERTILIZER ON RICE

摘要:

本研究的供试土壤为草炭型水稻土、白浆型水稻土和草甸型水稻土。三种土壤的有效硅含量127～181 ppm。供试硅肥的有效硅含量32.2％,公顷施用硅肥1吨,增产稻谷5.5～8.7％。当高肥条件时,增产10.0～13.4％。经济有效的硅肥施用量,一般公顷施用1吨为宜。

Abstract:

Three types of soils, including a peat, a baijing and a meadow peddy soils, were used in the present study. The range of available silicon content of the three types of soils was 127-181 ppm. The available silicon content of the fertilizer used was 32.2%. The yield of rice increased by 5.5-8.7% when 1, 000 kg/ha silicon fertilizer was used. Under some high fertile soil, a grain yield increase of 10.0-13.4% was achieved. The conclusion was that in general 1, 000 kg/ha silicon fertilizer should be used for the soils being studied economically.