Contents 1 Plant breeding 2 Biotechnology 3 Soil science 3.1 Soil conservation 4 Agroecology 5 Theoretical modeling 6 See also 7 References 8 Bibliography 9 External links

Plant breeding[edit] Main article: Plant breeding An agronomist field sampling a trial plot of flax. This area of agronomy involves selective breeding of plants to produce the best crops under various conditions. Plant breeding has increased crop yields and has improved the nutritional value of numerous crops, including corn, soybeans, and wheat. It has also led to the development of new types of plants. For example, a hybrid grain called triticale was produced by crossbreeding rye and wheat. Triticale contains more usable protein than does either rye or wheat. Agronomy has also been instrumental in fruit and vegetable production research.

Biotechnology[edit] Purdue University agronomy professor George Van Scoyoc explains the difference between forest and prairie soils to soldiers of the Indiana National Guard's Agribusiness Development Team at the Beck Agricultural Center in West Lafayette, Indiana An agronomist mapping a plant genome Agronomists use biotechnology to extend and expedite the development of desired characteristic.[2] Biotechnology is often a lab activity requiring field testing of the new crop varieties that are developed. In addition to increasing crop yields agronomic biotechnology is increasingly being applied for novel uses other than food. For example, oilseed is at present used mainly for margarine and other food oils, but it can be modified to produce fatty acids for detergents, substitute fuels and petrochemicals.

Soil science[edit] Main article: Agricultural soil science Agronomists study sustainable ways to make soils more productive and profitable. They classify soils and analyze them to determine whether they contain nutrients vital to plant growth. Common macronutrients analyzed include compounds of nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Soil is also assessed for several micronutrients, like zinc and boron. The percentage of organic matter, soil pH, and nutrient holding capacity (cation exchange capacity) are tested in a regional laboratory. Agronomists will interpret these lab reports and make recommendations to balance soil nutrients for optimal plant growth.[3] Soil conservation[edit] In addition, agronomists develop methods to preserve the soil and to decrease the effects of erosion by wind and water. For example, a technique called contour plowing may be used to prevent soil erosion and conserve rainfall. Researchers in agronomy also seek ways to use the soil more effectively in solving other problems. Such problems include the disposal of human and animal manure, water pollution, and pesticide build-up in the soil. Techniques include no-tilling crops, planting of soil-binding grasses along contours on steep slopes, and contour drains of depths up to 1 metre.[citation needed]

Agroecology[edit] Agroecology is the management of agricultural systems with an emphasis on ecological and environmental perspectives.[4] This area is closely associated with work in the areas of sustainable agriculture, organic farming, and alternative food systems and the development of alternative cropping systems.

Theoretical modeling[edit] Theoretical production ecology tries to quantitatively study the growth of crops. The plant is treated as a kind of biological factory, which processes light, carbon dioxide, water, and nutrients into harvestable products. The main parameters considered are temperature, sunlight, standing crop biomass, plant production distribution, and nutrient and water supply.

See also[edit] Agricultural engineering Agricultural policy Agroecology Agrology Agrophysics Food systems Green Revolution Vegetable farming

References[edit] ^ "I'm An Agronomist!". Retrieved 2013-05-02.  ^ Georgetown International Environmental Law Review ^ Hoeft, Robert G. (2000). Modern Corn and Soybean Production. MCSP Publications. pp. 107 to 171. ASIN B0006RLD8U.  ^ "Iowa State University: Undergraduate Program - Agroecology". Archived from the original on 7 October 2008. 

Bibliography[edit] Wendy B. Murphy, The Future World of Agriculture, Watts, 1984. Antonio Saltini, Storia delle scienze agrarie, 4 vols, Bologna 1984-89, ISBN 88-206-2412-5, ISBN 88-206-2413-3, ISBN 88-206-2414-1, ISBN 88-206-2415-X

External links[edit] Look up agronomist in Wiktionary, the free dictionary. Wikimedia Commons has media related to Agronomy. Wikiquote has quotations related to: Agronomy At Wikiversity, you can learn more and teach others about Agronomy at the Department of Agronomy The American Society of Agronomy (ASA) Crop Science Society of America (CSSA) Soil Science Society of America (SSSA) European Society for Agronomy The National Agricultural Library (NAL) – Comprehensive agricultural library. Information System for Agriculture and Food Research v t e Agriculture General Agribusiness Agricultural supplies Agricultural science Agricultural engineering Agroforestry Agronomy Animal husbandry Animal-free agriculture Extensive farming Farm Free range Intensive farming Intensive animal farming Mechanised agriculture Organic farming Permaculture Sustainable agriculture Universities and colleges Urban agriculture History Prehistoric Neolithic Revolution Agriculture in Mesoamerica Ancient Ancient Egypt Ancient Greece Ancient Rome Medieval Arab Agricultural Revolution Modern British Agricultural Revolution Green Revolution Organic Types Aquaculture Cattle Dairy farming Goat farming Grazing Hydroponics Livestock Pig farming Orchards Poultry farming Sheep farming Categories Agriculture by country Agriculture companies Biotechnology Livestock Meat industry Poultry farming Category Portal Wikiproject v t e Botany History of botany Subdisciplines Plant systematics Ethnobotany Paleobotany Plant anatomy Plant ecology Phytogeography Geobotany Flora Phytochemistry Plant pathology Bryology Phycology Floristics Dendrology Plant groups Algae Archaeplastida Bryophyte Non-vascular plants Vascular plants Spermatophytes Pteridophyte Gymnosperm Angiosperm Plant morphology (glossary) Plant cells Cell wall Phragmoplast Plastid Plasmodesma Vacuole Tissues Meristem Vascular tissue Vascular bundle Ground tissue Mesophyll Cork Wood Storage organs Vegetative Root Rhizoid Bulb Rhizome Shoot Stem Leaf Petiole Cataphyll Bud Sessility Reproductive (Flower) Flower development Inflorescence Umbel Raceme Bract Pedicellate Flower Whorl Floral symmetry Floral diagram Floral formula Receptacle Hypanthium (Floral cup) Perianth Tepal Petal Sepal Sporophyll Gynoecium Ovary Ovule Stigma Archegonium Androecium Stamen Staminode Pollen Tapetum Gynandrium Gametophyte Sporophyte Plant embryo Fruit Fruit anatomy Berry Capsule Seed Seed dispersal Endosperm Surface structures Epicuticular wax Plant cuticle Epidermis Stoma Nectary Trichome Prickle Plant physiology Materials Nutrition Photosynthesis Chlorophyll Plant hormone Transpiration Turgor pressure Bulk flow Aleurone Phytomelanin Sugar Sap Starch Cellulose Plant growth and habit Secondary growth Woody plants Herbaceous plants Habit Vines Lianas Shrubs Subshrubs Trees Succulent plants Reproduction Evolution Ecology Alternation of generations Sporangium Spore Microsporangia Microspore Megasporangium Megaspore Pollination Pollinators Pollen tube Double fertilization Germination Evolutionary development Evolutionary history timeline Hardiness zone Plant taxonomy History of plant systematics Herbarium Biological classification Botanical nomenclature Botanical name Correct name Author citation International Code of Nomenclature for algae, fungi, and plants (ICN) - for Cultivated Plants (ICNCP) Taxonomic rank International Association for Plant Taxonomy (IAPT) Plant taxonomy systems Cultivated plant taxonomy Citrus taxonomy cultigen cultivar Group grex Practice Agronomy Floriculture Forestry Horticulture Lists Related topics Botanical terms Botanists by author abbreviation Botanical expedition Category Portal WikiProject Agriculture and agronomy portal Ecology portal Environment portal Sustainable development portal Authority control GND: 4421347-5 NDL: 00568596 Retrieved from "" Categories: AgronomyHidden categories: All articles with unsourced statementsArticles with unsourced statements from November 2008Wikipedia articles with GND identifiers

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