T14-1 Soil Science & Management, 4E Chapter 14 Fertilizers

T14-2 Soil Science & Management, 4E Objectives Distinguish forms of fertilizers Describe fertilizer sources for each nutrient Perform important fertilizer calculations Describe how to use fertilizers List two effects fertilizers have on the soil

T14-3 Soil Science & Management, 4E Terms to Know Banding Broadcasting Calcium carbonate equivalent Chelates Complete fertilizers Fertigating Fertilizer Fertilizer analysis Fertilizer burn Fertilizer filler Fertilizer grade Fertilizer ratio Fluid fertilizers Foliar feeding Fritted trace elements Granules (continued)

T14-4 Soil Science & Management, 4E Terms to Know Mixed fertilizers Nutrient carriers Pop-up fertilizers Pressurized liquid Prills Pulverized fertilizers Sidedressing Split application Starter fertilizer Topdressing

T14-5 Soil Science & Management, 4E Fertilizers Figure 14-1

T14-6 Soil Science & Management, 4E Fertilizers Pressurized liquids Figure 14-2

T14-7 Soil Science & Management, 4E Fertilizers Fluid fertilizers Dry fertilizers Slow-release fertilizers

T14-8 Soil Science & Management, 4E Fertilizer Materials Nitrogen carriers (See Figures 14-4, 14-5, 14-6) Phosphorus carriers (See Figures 14-8, 14-9) Potassium carriers (See Figure 14-11) Secondary elements (See Figure 14-12) Trace elements (See Figure 14-13)

T14-9 Soil Science & Management, 4E Figure 14-4 Fertilizer Materials

T14-10 Soil Science & Management, 4E Figure 14-5 Fertilizer Materials

T14-11 Soil Science & Management, 4E Figure 14-6 Fertilizer Materials

T14-12 Soil Science & Management, 4E Figure 14-8 Fertilizer Materials

T14-13 Soil Science & Management, 4E Figure 14-9 Figure Fertilizer Materials

T14-14 Soil Science & Management, 4E Figure Fertilizer Materials

T14-15 Soil Science & Management, 4E Figure Fertilizer Materials

T14-16 Soil Science & Management, 4E Fertilizer analysis and grade Figure Mixed Fertilizers

T14-17 Soil Science & Management, 4E Mixed Fertilizers Contents of fertilizers Fertilizer ratio Elements and oxides Calculations for blending

T14-18 Soil Science & Management, 4E Selecting Fertilizer Factors that influence fertilizer selection: –Crop –Time of year –Application method –Cost

T14-19 Soil Science & Management, 4E Applying Fertilizer Figure 14-15

T14-20 Soil Science & Management, 4E Applying Fertilizer Fertilizing before planting –Broadcasting –Soil injection Fertilizing at planting –Banding Figure 14-17

T14-21 Soil Science & Management, 4E Applying Fertilizer Pop-up fertilizers –Transplant solutions Fertilizing after planting –Topdressing –Sidedressing –Fertigation –Foliar feeding

T14-22 Soil Science & Management, 4E Applying Fertilizer Horticultural fertilization

T14-23 Soil Science & Management, 4E Fertilizer Effects on Soils Effects of fertilizer on soil pH Effects of fertilizer on soluble salts

T14-24 Soil Science & Management, 4E Summary Fertilizer is substance used to supply essential elements –Finely ground minerals, natural or synthetic organic materials, and inorganic chemicals –Fertilizers come in different forms: Dry Fluid Slow-release Mixed –Nitrogen, phosphate, and potash