Physical Sciences and Mathematics Commons^™

Fall Fertilization And Liming For Tobacco Production, J. L. Sims, Kenneth L. Wells

Soil Science News and Views

Proper nutrition of tobacco is a prerequisite for achieving high yields of cured leaf possessing desirable marketing characteristics. Together with the variety grown, soils, climate, and curing conditions, a desirable nutrient environment greatly influences yield, quality, and usability of the leaf produced. Late summer and early fall is a good time to select fields for future tobacco crops or to sample this year's tobacco fields which will be used for tobacco next year, and to assess their needs for lime, phosphorus, and potassium. Planning fertilization strategies this fall that lead to increased profit is much more effective than waiting until …

Soil Testing: Improving Reliability, John H. Grove

Soil Science News and Views

Late summer is a good time to check forage and row crop fields for possible nutritional problems and to make plans for fall soil sampling. "Problem" areas can be identified for selective sampling and the test results can be used to plan fertilizer and lime expenses for the next crop production season. Fields scheduled for tobacco, small grain and/or double cropping need to be sampled first in order to determine lime, phosphorus (P) and potassium (K) needs before fall application.

Effect Of Fertilizer Salts On Crop Production, V. P. Evangelou

Soil Science News and Views

Soil consists largely of mineral and organic matter, air, and water. Plants obtain nutrients from mineral and organic matter, oxygen from air, and they use water as a carrier of nutrients from the soil into the root and to the above ground portion of plants.

Since soil water functions as a carrier of nutrients from solid fractions of soil into and through plants, it plays a very important role in plant nutrition. Because of this importance, correct chemical balance of the soil solution is necessary for best crop performance. This means that pH of the solution should be in the …

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.