Record nummer 707304
Titel artikel Comparison of the phosphorus status of soils managed organically and conventionally
Auteur(s) Lengnick, L.L. ; King, L.D.
Tijdschrifttitel American journal of alternative agriculture
Deel(Jaar)Nummer 1(1986)3
Paginering 108 - 114
Annotatie(s) 21 refs
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Trefwoorden (cab) alternatieve landbouw / vergelijkingen / experimenten / mineralen / fosfor / gesteenten / bedrijfssystemen
Rubrieken Kunstmeststoffen, bemesting / Alternatieve Landbouw
Publicatie type Artikel
Taal Engels
Toelichting Soil from adjoining farms, one organically and one conventionally managed, were used in a greenhouse study to compare soil P status and the efficiency of concentrated superphosphate and rock phosphate. Management did not affect dry matter yield of soybean plants. Conventional management resulted in higher P concentration in the plant and higher P uptake when superphosphate was the source.However, when rock powder was the source, management effect was not significant. When no P was applied, organic management resulted in greater total soil P, organic P and calciumphosphate
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