The initial and residual value of phosphorus from apatite rock phosphate and super phosphates as measured by 32 P dilution technique


Citation

Zaharah A.R., . and Sharifudin H.A.H., . The initial and residual value of phosphorus from apatite rock phosphate and super phosphates as measured by 32 P dilution technique. pp. 27-31. ISSN 0126-6128

Abstract

A pot trial using maize (Zea mays L.) grown on an Ultisol labelled with 32P was carried out to evaluate the agronomic value of nine types of apatite rock phosphates and triple superphosphate. Results show that the effectiveness of tested rock phosphates is variable as compared to superphosphate when measured at 30 days after planting. However these rock phosphates were three to five times more effective than triple superphosphate in the second cropping.


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Abstract

A pot trial using maize (Zea mays L.) grown on an Ultisol labelled with 32P was carried out to evaluate the agronomic value of nine types of apatite rock phosphates and triple superphosphate. Results show that the effectiveness of tested rock phosphates is variable as compared to superphosphate when measured at 30 days after planting. However these rock phosphates were three to five times more effective than triple superphosphate in the second cropping.

Additional Metadata

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Item Type: Article
Additional Information: 4 tables; 10 ref. Summary (En Malay)
AGROVOC Term: ZEA MAYS
AGROVOC Term: FOSFATO MINERAL
AGROVOC Term: SUPERFOSFATO
AGROVOC Term: FOSFORO
Depositing User: Ms. Norfaezah Khomsan
Last Modified: 24 Apr 2025 05:56
URI: http://webagris.upm.edu.my/id/eprint/20292

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