Study on dynamic change law of N, P and K in Panax notoginseng plant soils with different interval year / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 572-579, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-300190
ABSTRACT
<p><b>OBJECTIVE</b>To study effects of different interval year on Panax notoginseng plant soils macro element content.</p><p><b>METHOD</b>The dynamic change of total N, P, K and available N, P, K in soil from Mabai, Matang, Gumu and Panlong was determined under different planting patterns (new soil, interval 5 years soil and continuous cropping soil).</p><p><b>RESULT</b>Contents order of soil total N, P and available N, P were interval 5 years soil > continuous cropping soil > new soil. No significant quarter change on soil total N was found, but the other three showed inverted "v" curve, and the peak value appeared on April 2010. Content of soil total K did not change significantly, but the available K content order was new soil > continuous cropping soil > interval 5 years soil, the quarter change was similar as soil available N or P. The soil total N, P, K and available N, P, K were different of the 4 monitoring sites under the 3 interval planting modes. There was a significant correlation between soil total P and available P under all these 3 interval planting modes, but N and K. The propitiation of N-P-K of new soil, interval 5 years soil and continuous cropping soil were 1 0.4 2.4, 1 0.41.4, 10. 42.0, respectively.</p><p><b>CONCLUSION</b>Continuous cropping pattern induce the accumulation of P, but deficient of K. The imbalance proportion of N, P and K was one of the incentives of continuous cropping induced obstacles. Strengthen the research of optimum proportion of soil N, P and K, and then eliminate continuous cropping obstacles by means of formulated fertilization is the future research direction.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fósforo
/
Potássio
/
Controle de Qualidade
/
Solo
/
Cruzamento
/
Medicamentos de Ervas Chinesas
/
Química
/
China
/
Agricultura
/
Panax notoginseng
País/Região como assunto:
Ásia
Idioma:
Chinês
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2014
Tipo de documento:
Artigo
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