期刊论文详细信息
Ciência Rural
Nutrients concentration changes in two flooded soils during the rice cycle
Silva, Leandro Souza da3  Bohnen, Humberto1  Sousa, Rogério Oliveira de2 
[1] Universidade Federal do Rio Grande do Sul;Universidade Federal de Pelotas;Universidade Federal de Santa Maria, Santa Maria
关键词: soil solution;    rice;    nutrients;   
DOI  :  10.1590/S0103-84782003000300014
学科分类:农业科学(综合)
来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais
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【 摘 要 】

Flooding a soil and growing plant on it can change its biological and chemistry properties, in comparison with a non-flooded environment. An experiment was conducted in order to study the nutrients dynamics in the solution of two soils (Planossolo and Gleissolo) during the rice cycle. Rice plants were cultivated in 50L containers having devices to collect soil solution at several depths (2.5, 5.0, 7.5 and 31cm). In the soil solution, with and without plant, P, K, Ca, Mg, Fe and Mn, were measured at 10, 19, 44, 77, and 113 days after the flooding. Potassium was especially sensible to the rice plant and depth of sampling

【 授权许可】

CC BY-NC   

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