Nitthaisong, Pattama

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Nitthaisong, Pattama
Alternative Name
Nitthaisong, P.
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pattama.ni@kmitl.ac.th

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    Item type:Publication,
    Optimum potassium fertilizer rate for growth, biomass yield, and fuel properties of Leucaena (Leucaena leucocephala) cv. Tarramba in sandy soil
    (2025-05-01)
    Nitthaisong, P.
    ;
    Thupwong, K.
    ;
    Tonmukayakul, N.
    ;
    Utharapan, J.
    ;
    Chaisan, T.
    The results showed that the 187.5, 375 and 750 kg ha<sup>-1</sup> application rates increased plant height and stem diameter, while the control (0 kg ha<sup>-1</sup>) showed a potassium deficit, resulting in stem dieback. High leaf, branch, and stem yield were found at application rates greater than 93.75 kg ha<sup>−1</sup>, while plant height, stem diameter and biomass yield were slightly further increased in the 187.5, 375 and 750 kg ha<sup>-1</sup> treatments. Regarding fuel properties, the potassium application rate did not affect the heating value and ash content but decreased the N and S contents. The potassium content tended to increase with increased potassium application rate. However, the leucaena wood under all the treatments had suitable fuel properties for use as a fuel crop.