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Full-Text Articles in Physical Sciences and Mathematics
Molybdenum Nutrition Of Crops In Kentucky, J. L. Sims
Molybdenum Nutrition Of Crops In Kentucky, J. L. Sims
Soil Science News and Views
Molybdenum (Mo) is one of eight micronutrient elements required for the growth of plants. Research conducted in California nearly 40 years ago established its need for plant growth. Mo deficiencies have been reported throughout the world, especially on acid soils in the United States, Australia, and New Zealand. Generally, the Mo requirement of leguminous crops is greater than for non~legumes, but many non-leguminous field and vegetable crops have responded to additions of fertilizer Mo under severe deficiency conditions. Of all the nutrient elements required by plants for growth, Mo is needed in smallest amounts.
The Status Of Sulfur Fertilization Of Crops In Kentucky, Lloyd W. Murdock
The Status Of Sulfur Fertilization Of Crops In Kentucky, Lloyd W. Murdock
Soil Science News and Views
Sulfur has long been recognized as being essential for the growth of plants and animals due to it being necessary for production of several amino acids. Although regarded as a "secondary" element, it is required by plants in fairly high amounts, very similar to that of phosphorus. Sulfur deficiency symptoms in plants are somewhat similar to those of nitrogen since an overall uniform pale-green leaf color develops. Sulfur deficiencies are often found in crops growing on sandy soils with low organic matter content.
Use Of Plant Analysis, William O. Thom
Use Of Plant Analysis, William O. Thom
Soil Science News and Views
Plant analysis is the laboratory determination of several nutrient elements on a single sample of plant material. In recent years this technique has been more frequently used to diagnose soil fertility problems 0r to monitor soil fertility recommendations on growing crops. Current instrumentation makes it possible to rapidly determine several elements on an extract from a plant sample.