Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter35: Plant Nutrition
Section: Chapter Questions
Problem 1TYK
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Question
Mark all the correct answers with regards to plant nutrition:
-Sulfur fertilizers are irrelevant in increasing crop yields
-Gypsum is the most commonly used soil S amendment
-Potassium sulfate should not be applied in alkaline soils In organic farming, legumes need to be added as cover crops, cash crops, intercroping or green manures
-High SOM will certainly have S sufficiency to crops
-Most soil N is stored as soil organic matter
-Only low organic matter soils have S deficciency
-Inorganic N fertilizer are the only way to balance soil N fertility
_Free living diazotrophs can sustain crop N nutrition
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