Establishing P Fertilization Recommendation Index of Different Vegetables by STP with the "3414" Field Experiments in South China.
In: International Journal of Agriculture & Biology, Jg. 16 (2014-06-01), Heft 3, S. 603-608
academicJournal
Zugriff:
The aim of this study was to establish phosphorus fertilization recommendation index of different vegetables (leafy, gourd and leguminous vegetables) by soil test P (Olsen-P and Brayl-P) with the "3414" experiments of 121 sites during 2007-2010 in 30 counties of Guangdong Province, China. The results showed that relationship between vegetable relative yield and soil test P was linear with plateau and logarithmic equation model. The optimal amount of P fertilizer was established with soil test P by logarithmic equation mathematical models. The soil P content was calculated by the relative yield of 50, 75, 90 and 95%, to obtain the soil P abundance and deficiency indicators. Taking plentiful-lack of soil-test P as an index, soil Olsen-P and Bray l-P were classified into five classes corresponding to relative yield of 50, 75, 90 and 95%. This study shows P fertilizer recommended rates were rendered by the models of soil test P with Olsen-P and Brayl-P for "3414" field experiments for three vegetables. © 2014 Friends Science Publishers [ABSTRACT FROM AUTHOR]
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Establishing P Fertilization Recommendation Index of Different Vegetables by STP with the "3414" Field Experiments in South China.
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Autor/in / Beteiligte Person: | Ding, Xiaodong ; Zhang, Qiao ; Wang, Rongping ; Liao, Xinrong ; Li, Shuyi ; Ceng, Sijian ; Zhang, Yucan |
Zeitschrift: | International Journal of Agriculture & Biology, Jg. 16 (2014-06-01), Heft 3, S. 603-608 |
Veröffentlichung: | 2014 |
Medientyp: | academicJournal |
ISSN: | 1560-8530 (print) |
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