IN NATURE of February 17 is a communication from Mr. and Mrs. Howard pointing out that the probable explanation of the advantage of leaving land rough ploughed during the hot weather in India is that the biological changes which occurred under the conditions of Messrs. Russell and Hutchinson's experiments occur here also.
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LEATHER, J. The Fertilising Influence of Sunlight. Nature 83, 277 (1910). https://doi.org/10.1038/083277a0
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