期刊
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
卷 39, 期 3-4, 页码 358-369出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00103620701826498
关键词
ameliorant; high-energy milling; liming effects; multinutrients; silicate rock fertilizers
The effectiveness of intensively milled gneiss and potassium (K-feldspar) as K fertilizers was evaluated through a glasshouse experiment with ryegrass. Plant were grown on two soil types for 12 months. Results show that the agronomic effectiveness of milled gneiss was nearly as great as potassium sulfate (K2SO4), but milled K-feldspar was much less effective because of the relatively small extent of dissolution of K-feldspar in the soil. The positive effects of K-silicate rock fertilizers (K-SRFs) included increases in plant biomass, uptake of K and silicon (Si), and soil pH with increasing application rate of the K-SRFs. The application of K-SRFs will be most advantageous for amending K-deficient soils, and high-energy milling provides a simple method for manufacturing effective multinutrient SRFs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据