On the fertilization of sugar cane.

Authors

  • J. van Schuylenborgh
  • R.M. Sarjadi

DOI:

https://doi.org/10.18174/njas.v6i4.17699

Abstract

Soil and leaf analyses in Indonesia have shown that the sugar cane crop removes an average of 100 kg. N, 100 kg. PO4, 350 kg. K, 30 kg. Ca and 20 kg. Mg per ha. per annum from the soil. Results from fertilizer trials have emphasized the relationship between sucrose percentage and N, P and K contents. When the leaf N content was sufficiently high, the sucrose percentage and the K/PO4 ratio in the leaf were related, with the optimum value for the ratio appearing to lie between 5.5 and 6.5. With adequate N and PO4 contents, there was a direct relationship between the sucrose percentage and the leaf K content. The sucrose percentage was also related to the K/PO4+N, K/PO4 and K/N ratios. When the leaf K content was adequate, the sucrose percentage and the PO4/N ratio in the leaf were related, with an optimum value of 0.215. Nitrogen had the greatest effect on cane production, but tended to reduce sugar yields. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1958-11-01

Issue

Vol. 6 No. 4 (1958)

Section

Papers

License

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