1. August 2008 Grain, Oil, and Specialty Field- Crop Production By Larry Stine Estherville Lincoln Central High School Original Power Point created by Larry Stine Modified by Georgia Agricultural Education Curriculum Office June 2002

2. August 2008 Competencies: Define important terms used in crop production Identify major crops grown for grain, oil, and special purposes Classify field crops according to use and thermo requirements Describe how to select field crops, varieties, and seed

3. August 2008 Competencies: Prepare proper seedbeds for grain, oil, and specialty crops Plant field crops Describe current irrigation practices for field crops to meet their water needs Control pests in field crops Harvest and store field crops

4. August 2008 Terms to Know Field Crops Grain Crops Malting Forage Cover Crops Green Manure Crops Oilseed Crops

5. August 2008 Terms to Know Linen Linseed Oil Ginning Seed Pieces Cash Crop Thermo Cereal Crops

6. August 2008 Terms to Know Seed Legume Crops Root Crops Sugar Crops Tuber Crops Stimulant Crops Conventional Tillage No-till

7. August 2008 Term to Know Row Crop Planters Drill Planters Broadcast Planters Irrigation Sprinklers Surface Irrigation Mechanical Pest Control

8. August 2008 Terms to Know Cultural Control Biological Control Genetic Control Chemical Control Threshing

9. August 2008 History of Crop Production Began about 10,000 years ago Changed early humans from hunters to farmers Observed what animals were eating Trial and error and thousands of years of selection

10. August 2008 In the United States Occupies more than 450 million acres Acreage represents about 20% of the U.S. About 2% of American workers are in production agriculture 11% of personal income in U.S. spent on food Helps to maintain balance of trade

11. August 2008 Major Field Crops in the United States Seven major grain crops in the United States. Grain crops are grasses grown for their edible seeds. Major Grain Crops: 1.Corn5. Rye 2.Wheat6. Rice 3.Barley7. Grain sorghum 4.Oats

12. August 2008 Corn Most important field crop in the U.S. 35-40% of total production from midwest 50% of corn produced in the world Origin in Central America

13. August 2008 Corn Less than 10% of U.S. production is for human consumption Major classifications: - Dent corn -Flint corn -Popcorn -Sweet corn -Flour or soft corn -Pod corn

14. August 2008 Wheat Most important grain crop in the world 2nd to corn in U.S. Primarily for human consumption Ground into flour: -bread -cakes -cereal -macaroni/noodles

15. August 2008 Wheat Types of Wheat: - Common -Poulard -Durum-Polish -Club-Emmer -Spelt Classes of Common Wheat: - Soft red winter-Hard red winter -Hard red spring-White

16. August 2008 Barley Ranks fifth among grain crops in U.S. Most is used in livestock feed Same feed value as corn Production for malting is also important

17. August 2008 Oats Fourth in acres produced in the United States Value is well documented for livestock: - Adding bulk to the diet -Adding protein to the diet 5% is made into oatmeal and cookies Used in production of plastics, pesticides, and preservatives Important in paper and brewing industries

18. August 2008 Rye Least economically important grain crop 25-35% of rye acreage used for grain Remainder used for forage: - Cover crop -Green manure crop Rye grown for grain is used for livestock feed, flour, whiskey & alcohol production

19. August 2008 Rice Major grain crop grown for food for over half the people in the world Only commercially grown grain crop that can grow and thrive in standing water Types grown in U.S.: - Short grain -Medium grain -Long grain Majority used for human consumption

20. August 2008 Sorghum In U.S. used primarily for livestock feed About equal to corn in food value Other uses include: - Forage -Manufacture of syrup or sugar -Making of brooms Third most important U.S. grain crop

21. August 2008 Sorghum Types of sorghum: -Grain -Forage -Syrup -Grass -Broomcorn

22. August 2008 Oilseed Crops Crops grown for the production of oil from their seeds Growing in importance each year Important crops are: - Soybeans-Safflower -Peanuts-Flax -Corn-Sunflower -Cottonseed

23. August 2008 Soybeans 60 million acres in U.S. Average yield 34 bu/acre Gross $11 billion/year Oil and grain products are major uses Meal fed to livestock Also used for hay, pasture, and other forage 100’s of other uses

24. August 2008 Peanuts Actually a pea and not a nut Grown primarily in the South One ton will yield: -500 lbs. oil -800 lbs. meal -700 lbs. shell Meal used for livestock feed and in human diets Other foods include peanut butter and dry roasted peanuts

25. August 2008 Safflower Production for oil occurs mainly in California Plants grow 2 to 5 feet high with heads resembling Canadian thistles 25-35 percent oil Used in production of paint and other industrial products Used for cooking oil and low cholesterol diets

26. August 2008 Flax Originally, the production was for fiber Fibers were used to produce linen Oil is called linseed oil Important raw product in many types of paint 100’s of uses in industry Meal is excellent source of protein for animal feeds

27. August 2008 Sunflowers Production of oil-type important in recent years 90% of production oil-type 49-53% oil Meal has 14-19% protein Meal used for livestock feed Oil used for margarine and cooking oil Oil can substitute for diesel fuel in tractors

28. August 2008 Specialty Crops Include: - Fiber Crops -Sugar Crops -Stimulant Crops Examples include: - Cotton -Sugar beets -Sugarcane -Tobacco

29. August 2008 Cotton Originated in Central and South America Important crop in South since colonial times Need warm temperatures and a long growing season Can produce up to three crops per year under irrigation

30. August 2008 Cotton Over 15 million bales of cotton produced in U.S. per year 9 million bales used in textile industry, rest is exported Removing seed from cotton is called ginning Seed is processed to remove the oil which contributes to vegetable oil needs Meal is used for animal feed

31. August 2008 Sugar Beets Accounts for about 35% of the refined sugar produced in the U.S. Produces a thick, fleshy storage root Center of production is the western states and the upper Midwest

32. August 2008 Sugar Cane Accounts for 65% of the sugar refined in the U.S. Crop is a grass grown from sections of stalk called seed pieces Takes about 2 years to reach harvesting stage in Hawaii Takes 7 months until harvest in the southern states Can harvest several times before replanting

33. August 2008 Tobacco Original North American product used by Native Americans Produced as a cash crop Production dropped in the 1980’s and increased again in the 1990’s Requires large amounts of labor and is adapted to small farming operations Warm temperatures and plenty of rainfall are required for optimum production

34. August 2008 Classification of Field Crops Three ways of classifying field crops: 1. Use 2. Thermo requirements 3. Life span Classification by use: -Cereal crops-grown for their edible seeds -Seed legume crops-nitrogen-fixing crops that produce edible seeds -Root crops-grown for their thick, fleshy storage roots

35. August 2008 Classification of Field Crops Forage crops-grown for hay, silage, or pastures for livestock feed Sugar crops-grown for their ability to store sugars in their stems or roots Oil crops-produced for the oil content of their seeds Tuber crops-grown for their thickened, underground storage stems Stimulant crops-grown for their ability to stimulate the sense of the user

36. August 2008 Classification of Field Crops Thermo classifications: - Warm season -Cool season Warm season crops must have warm temperatures in order to live and grow Cool season crops often need a period of cool weather in order to attain maximum production

37. August 2008 Classification of Field Crops Classification by life span: - Annual -Biennial -Perennial Factors to consider for the selection of field crops: 1. Crops that will grow and produce the desired yields under the type of climate available. 2. Crops that are adapted to the type of soil available.

38. August 2008 Classification of Field Crops 3. Demand on market available for the crop to be produced. 4. Labor requirements and availability of labor for the crop. 5. Machinery and equipment necessary to grow the crop. 6. Availability of enough land to justify production of the crop. 7. Pest-control problems. 8. Expected yields. 9. Anticipated production costs.

39. August 2008 Seedbed Preparation Purpose is to provide conditions favorable for germination and growth Eliminating competition from weeds and crop residues is a consideration

40. August 2008 Seedbed Preparation Can increase availability of soil nutrients Should not be overworked Fineness of seedbed is dependent on size of seed Should contain enough fertility to encourage germination and growth Control and elimination of weeds, insects, and diseases is an important consideration

41. August 2008 Seedbed Preparation Three categories of tillage preparation: 1. Conventional tillage- land is plowed with a moldboard plow 2. Minimum tillage- seedbed is prepared only enough so that the seed can make contact with the soil and germinate 3. No-till-planting seeds directly into the residue of the previous crop

42. August 2008 Planting Field Crops Three general types of planters: 1. Row crop planters-plant seeds in precise rows with even spacing within the rows 2. Drill planters-plant seeds in narrow rows at high population rates 3. Broadcast planters-scatter the seed in a random pattern on top of the seedbed

43. August 2008 Planting Field Crops Other considerations include: - Date to plant -Germination rate of seeds -Uniformity of seed -Weather conditions -Insect and disease control problems

44. August 2008 Meeting Water Needs of Crops Ideally 1/2 of pore space is filled with water About 1/2 of the water in the pore spaces are available for plant use Factors affecting water availability include: -Type of soil -Natural rainfall -Water-table levels -Prevailing winds

45. August 2008 Meeting Water Needs of Crops Irrigation may be the answer to obtaining profitable yields Irrigation has been practiced for over 5,000 years - Egyptians used water from the Nile River for irrigation -Chinese and Native Americans used irrigation

46. August 2008 Meeting Water Needs of Crops Major methods of supplying irrigation water to crops: - Sprinklers-spray water through the air, much like rainfall -Surface irrigation- water gets to the crop by gravity, flowing over the surface of the soil or in ditches or furrows -Subsurface irrigation- supplies water to the roots of crops underground

47. August 2008 Pest Control in Field Crops Control of pests in field crops often determines profits Pests include: -Diseases -Weeds -Insects -Animals Economic losses total billions of dollars each year

48. August 2008 Pest Control in Field Crops Three main categories of losses: 1. Reduced yields 2. Reduced quality 3. Spoilage Methods of controlling pests in field crops: -Mechanical pest control -Genetic control -Cultural pest control -Chemical control -Biological pest control

49. August 2008 Mechanical Pest Control Anything that affects the environment of the pest or the pest itself Cultivation is the normal mechanical control of weeds Other types include: -Pulling or mowing weeds -Use of screens, barriers, traps, and electricity

50. August 2008 Cultural Control Adapting farming practices to control pests Includes: -Timing farming operations to eliminate pests -Rotating crops -Planting resistant varieties -Planting trap crops that are more attractive to insects than is the primary crop

51. August 2008 Biological Control Involves the use of predators or diseases as the control mechanisms Examples: -Release of sterile male insects -Uses of baits and repellents Important that the control be specific to the intended pest

52. August 2008 Genetic Control Development of varieties of crops that are resistant to pests May involve making the crop less attractive to pest because of: -Taste -Shape -Blooming time

53. August 2008 Chemical Control Involves the use of pesticides to control pests Excellent management practices must be exercised Care in pest identification and selection of the chemical are important Dosage, runoff, and pesticide residues need to be monitored

54. August 2008 Harvesting and Storing Field Crops Harvesting at proper stage of maturity is a key to maximizing profits Culmination of a growing season of work and anticipation of the rewards of a job well done

55. August 2008 Harvesting and Storing Field Crops Development of mechanical harvesting equipment Primary harvesting machine is the combine which performs the tasks of: -Cutting the crop -Threshing the crop -Separating crop from debris -Cleaning the crop

56. August 2008 Harvesting and Storing Field Crops Threats to quality of stored crops include: -Heat -Moisture -Fungi -Insects -Rodents Production of field crops generates more income for American agriculturists than any other production enterprise