The Influence of Fertility Level on the Growth, and on Changes in Nitrogen, Phosphorus, and Potassium Content of Different Parts of Oats from Jointing to Milk Stage |
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1st 2nd 3rd 1st sampling alfalfa Average of four concentration considerable content in oat content of nitrogen correlation deficiency symptoms dry matter factors four replicates Goodall and Gregory grain yield green Gregory Goodall growth growth medium harvest heading stage inflorescence jointing stage jointing to milk leaf fractions leaf samples leaves Middle leaves low nitrogen lower plant lower two leaves ment Middle leaves Lower milk stage Milligrams Mineral Content nitrate nitrogen fertilization nitrogen per plant nitrogen supply nutrient oat leaves occurred percent of dry percentage content percentage nitrogen content percentage phosphorus phosphorus and potassium Phosphorus content phosphorus supply plant analyses plant sap potassium content rapid tissue tests relationship sampling 2nd sampling sampling 3rd sampling at Aurora sampling sampling second sampling senescence small grains soil stages of development third sampling tillering top leaves total content Total nitrogen translocation treatments trogen Upper stem uptake W. K. Kellogg Foundation whole plant yellowing