Abstract
CULTIVATORS in parts of the Irrawaddy delta complained that after a few years use of an ammonium phosphate fertilizer on rice lands, they had continually to increase the dose in order to obtain the same response. An experiment was devised to test this opinion1,2.
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References
Ann. Rept. Dept. Agric. Burma, 1941-42 and 1942–43, 2.
Agric. Dept. Burma, Myaungmya Farm Reports, 1931 to 1941.
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RHIND, D., TIN, U. Results of the Continuous Use of an Ammonium Phosphate Fertilizer on Rice in Lower Burma. Nature 161, 105–106 (1948). https://doi.org/10.1038/161105a0
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DOI: https://doi.org/10.1038/161105a0