Therefore, it is wise to apply organic fertilizers well before planting so that adequate amounts of nutrients will be released before plants need them. When a deficiency does occur, it is not easy to get quick corrective action from organic sources. Soil moisture, temperature, and pH all affect nutrient availability. Very wet, dry, or cool soil can prevent nutrient release. Rates of application.
Most soils contain adequate levels of micronutrients so outside sources are usually unnecessary.
First, look on the product packaging to find the percentage of nutrients contained in the material. If you are using a nonpackaged source, use the results listed in the waste analysis report or the appropriate value from in Table 1. Then, divide this number into the pounds of actual nutrient recommended on the soil test report. The results of this calculation indicate that 8.3 lbs of bloodmeal per 1000 square feet will supply the recommended nitrogen. You find that you need to apply 12.5 lbs of meal per 1000 square feet to meet the nitrogen requirement.