Showing 161 - 180 results of 16,602 for search '(( 50 ((ppm decrease) OR (a decrease)) ) OR ( 50 ((mg decrease) OR (nn decrease)) ))', query time: 0.72s Refine Results
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    Changes in lowland paddy soil fertility in the Philippines after 50 years of the Green Revolution by Atsushi Nakao (12396)

    Published 2021
    “…<p>The Green Revolution (GR) made a major contribution to increasing the rice yield in the Philippines from 1.3 t ha<sup>−1</sup> in 1966 to 4.0 t ha<sup>−1</sup> in 2018, but the changes in paddy soil fertility that occurred during this 50-year period remain unknown. …”
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