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Replanting
https://agcrops.osu.edu/node/4338
soils, do not interplant more seed unless the number of plants per foot of row is less than 45 percent of ... For light-colored soils, do not interplant unless the number of plants per foot of row is less than 60 ... 7.5-inch wide rows is 2.8 seeds per foot of row. If the soil in the field is dark in color and good ...
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Sampling Corn Grain for Vomitoxin
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-03/sampling-corn-grain-vomitoxin
Moldy grain and vomitoxin levels vary considerably within the grain lot. This is largely because ... produces vomitoxin in the grain, and number of infected kernels on a given ear within a field are highly ... vastly different levels of internal fungal colonization, and consequently, different levels of vomitoxin ...
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Introduction to Graduate- Level East Asian Studies
https://fabe.osu.edu/courses/agsysmt-7786
AGSYSMT 7786 This interdisciplinary course is a combination of student explorations of scholarly work in East Asia and subjects in these cultures. Readings and presentations on the impact of STEM in agriculture and environment on the cultures in East Asia ...
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Conservation Tillage & Technology Conference March 14-15 in Ada
local Soil and Water Conservation Districts, Ohio Department of Agriculture, and United States ... begin at 10:00 a.m. on Tuesday. The Tuesday session on Soil Health, Cover Crops and No-till will include ... sessions on Wednesday will begin at 8:30, and end about 4:30. The Soil Health, Cover Crops and No-till and ...
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Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values
https://ohioline.osu.edu/factsheet/anr-75
Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...
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Using Soil Tests Phosphorus Results to Identify Agronomic and Conservation Needs
chance of more than 0.5 inches of rainfall. Soil Test Phosphorous (STP) values are above 50 PPM Mehlich ... water quality. Fields with Soil Test Phosphorus (STP) levels two to three times higher than the ... Between 20-40 PPM (or 30-50 PPM if wheat/alfalfa are in the rotation) Greater than 50 PPM More detailed ...
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Grapevine Nutrient Management: Petiole Sampling and Analysis
https://ohioline.osu.edu/factsheet/hyg-1438
availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...
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Drones for Spraying Pesticides—Opportunities and Challenges
https://ohioline.osu.edu/factsheet/fabe-540
likely to cause a significant level of soil compaction resulting in reduced crop yield. Spot spraying, ... spraying and the high level of public demand for relaxation of current rules and regulations. Universities, ... a number of important data points: soil characteristics (type, moisture content, and nutrient content) ...
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Soil Terminology and Definitions
https://ohioline.osu.edu/factsheet/SAG-19
of soil antecedent biological activity. A high BR generally indicates higher soil microbial activity, ... accumulation in the soil. This index can be used as an early and sensitive indicator of carbon or soil organic ... and macropores leading to soil compaction and decreased soil organic matter levels. Soil compaction ...
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Developing Phosphorus and Potassium Recommendations for Field Crops
https://ohioline.osu.edu/factsheet/AGF-515
+ (0.05 x CEC))] + (YP x CR) + 20 CL is the critical level (100 ppm at a CEC of 10), STL is the soil test ... test results are based on soil calibration studies that correlate soil test levels to crop yield ... crop (buildup stage). Once soil test values reach the critical soil test level, a maintenance approach ...