Soil fertility and fertilizer management. Long-term fertility experiment
Anonymous
Annual report for 1977: 304-307
1978
Accession: 000748332
Long-term NPK trials at IRRI, the BPI stations and on different soils are reported and grain yield data for rice IR26 and IR36 for the treatments tabulated. Significant grain yield increases were obtained with 140 kg N/ha. Application of NPK gave 5.4-6.3 t grain/ha, while N and NP applications gave 3.2-4.5 and 3.3-4.5 t/ha, resp.
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