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A study of the effect of intensive cropping and the use of pure chemicals on the need for so-called "minor elements" on certain soil types and the effect of natural Chilean nitrate of soda in eliminating this need

Phillippe, Maurice MatthewVirginia Agricultural and Mechanical College and Polytechnic Institute1940

… soil management problem and what part natural Chilean nitrate of soda plays in preventing and correcting this condition. Also this investigation was developed to give a comparison of yield and growth of various crops grown intensively on a number of soil types where fertilized with purified …

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A study of the effect of intensive cropping and the use of pure chemicals on the need for elements other than nitrogen, phosphorus, and potassium on certain soil types and the effect of natural Chilean nitrate of soda in supplying these elements

Wellborn, Fred LaFayetteVirginia Agricultural and Mechanical College and Polytechnic Institute1942

vt Repository record for A study of the effect of intensive cropping and the use of pure chemicals on the need for elements other than nitrogen, phosphorus, and potassium on certain soil types and the effect of natural Chilean nitrate of soda in supplying these elements (opens in a new tab)

Perchlorate Variations Over 300 Years: Influence of Human Activities, Volcanic Eruptions and Bolide Events

Peterson, Kari2016

<p>Perchlorate, which derives from both anthropogenic and natural sources in the current environment, constitutes a significant health risk to humans because it competitively inhibits iodine uptake by the thyroid gland. Thus, there has been considerable interest in reducing the human exposure to …

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