D.D.T. Alternatives
Sir, —Current news and comment on pollution seem mainly concerned with air and water, largely overlooking the vital part played by the soil. The integrity of the soil which produces our food is just as important to our national health as the purity of ail and water. Loss of humus is closely associated with the leaching of water-soluble fertilisers and poison sprays into our waterways, and with the depression of the soil bacteria from which plants derive health and resistance to disease. Perhaps the exhortation of one of the speakers at the Grasslands Conference to farmers to be “adventurous and resourceful” could spur a few true husbandmen to denounce the present chemical deluge and return to the old principles of establishing true fertility through the soil’s own biological system. A few organic farmers in New Zealand have already found it safer and economically worth while, even in reducing the effects of grass-grub damage.—Yours, etc., HUMUS. May 20, 1970.
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Press, Volume CIX, Issue 32302, 21 May 1970, Page 10
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160D.D.T. Alternatives Press, Volume CIX, Issue 32302, 21 May 1970, Page 10
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