Intro to Soil Fertility and Plant Nutrition

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<ul><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 1/12</p><p>Soil Fertility and Plant Nutrition</p><p>y oes ma er</p><p>LightCO2</p><p>Heat</p><p>a er u r en s</p><p> Ca acit of a soil to su ort roduction of aspecific crop.</p><p> Measured in terms of yield/biomass</p><p> Productivity depends on adequate moisture,</p><p>climate (temperature, rainfall).</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 2/12</p><p> Soils ca acit to su l elements essential forplant growth</p><p> Measured: - directly (concentration of nutrients)</p><p>- indirectly (productive capacity)</p><p> Soil fertility is relative to the plant being</p><p> Civilization depends on agriculture</p><p> A riculture de ends on soil roductivit</p><p>fertility</p><p>World Population Growth</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 3/12</p><p>Food Production and Nourishment</p><p>US agricultural productivity</p><p>ren s n arm an s</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 4/12</p><p>World Fertilizer Consumption</p><p>80</p><p>100</p><p>ns</p><p>60nTo Nitrogen</p><p>P2O5</p><p>20Milli K2O</p><p>NO3-</p><p>0</p><p>1920 1940 1960 1980 2000 2020</p><p>Location of North American phosphate</p><p>SKMB</p><p>BCAB</p><p>ND</p><p>ON</p><p>WA</p><p>OR</p><p>MT</p><p>MN</p><p>PQ</p><p>NB</p><p>NS</p><p>PEI</p><p>ME</p><p>VT</p><p>ID</p><p>SD</p><p>NY</p><p>PA</p><p>OHINIL</p><p>IA</p><p>WIMI</p><p>WY</p><p>NV</p><p>NH</p><p>MA</p><p>CTRI</p><p>NE</p><p>MD</p><p>NJ</p><p>UT</p><p>CA</p><p>AZ M</p><p>KS</p><p>MO</p><p>KY</p><p>WVVA</p><p>MD</p><p>DE</p><p>NC</p><p>TNOK</p><p>CO</p><p>AR</p><p>TX LA</p><p>MS AL GA</p><p>SC</p><p>Potash mines</p><p>Phosphate rock mines</p><p>FL</p><p> Total Reserves: 13,224 million tons</p><p> Life of Reserves: 88 years</p><p> US Reserves: 1,102 million tons</p><p> Life of US Reserves: 25 years</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 5/12</p><p> Total Reserves: 9,256 million tons</p><p>Factors Affecting Plant Growth</p><p>and Yield</p><p> Climate: rain, temperature, light, wind, etc.</p><p> Crop: variety, planting date, pests, etc.</p><p> Soil: fertilit , structure, texture, etc.</p><p>Textbook Table 1-6</p><p>be no greater than that allowed by</p><p>e mos m ng grow ac or </p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 6/12</p><p>e g s na ogy o a arre</p><p>Seeding rate</p><p>P and seeding rate</p><p>Water, P and seeding rate</p><p>N</p><p>Seeding rate</p><p>P and seeding rate</p><p>Water, P and seeding rate</p><p>N</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 7/12</p><p>Seeding rate</p><p>P and seeding rate</p><p>Water, P and seeding rate</p><p>N</p><p>Seeding rate</p><p>P and seeding rate</p><p>Water, P and seeding rate</p><p>NN</p><p>Essential Plant Nutrients</p><p>Classification: Quantitative Abundance</p><p> Carbon</p><p> H dro en</p><p> Iron</p><p> Zinc</p><p> Oxygen Nitrogen</p><p> Boron Molybdenum</p><p> Phosphorous</p><p> Potassium</p><p> Copper </p><p> Manganese</p><p> Calcium</p><p> Sulfur </p><p> Chloride</p><p> Nickel</p><p> agnes um</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 8/12</p><p>Classification of Nutrients based on</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 9/12</p><p>Classification of Nutrients: Function</p><p>Classification of Nutrients: Function</p><p>Classification of Nutrients: Mobility</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 10/12</p><p>S deficiency</p><p>N deficienc</p><p>r ca ange</p><p>Steenberg effect</p><p>World Fertilizer Consumption</p><p>80</p><p>100</p><p>ns</p><p>60</p><p>onT</p><p>oNitrogenP2O5</p><p>20Milli K2O</p><p>NO3-</p><p>0</p><p>1920 1940 1960 1980 2000 2020</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 11/12</p><p>EUTROPHICATIONNatural Process Accelerated by land use</p></li><li><p>8/8/2019 Intro to Soil Fertility and Plant Nutrition</p><p> 12/12</p><p>Extent of H oxia in the Gulf of Mexico</p><p>Frequency of Occurrence 1985 - 1999</p><p>Distribution of frequency of occurrence of midsummer hypoxia </p><p>based on data from Rabalais, Turner and Wiseman</p><p> -,</p><p>page 14-27</p></li></ul>