Sixty-two experiments in crops; a laboratory manual for beginning students

Front matter

Sixty -Two Experiments s

5 4

In Crops

SECTION ONE.— PLANT COMPOSITION. Experiment Number

Title

Page

1. How Plants Live, — Chlorophyll 9

2. How Plants Live, — Protoplasm and Cells 10

3. Testing Seeds for Starch 11

4. Testing Plants for Starch 11

5. Testing Plant and Animal Substances for Protein.... \2 Field Exercise, — Sugar in Plants 12

6. Testing Seeds for Fats and Oils 13

7. Testing Seeds for Fats and Oils 13

8. The Moisture Requirements of Plants 14

9. To Show that Moisture Passes Through a Plant IS

Experiment Title Page

Number

10. Carbon in Plants 15

11. The Effect of Too Much Plant Food 16

12. Soil Wiater in Relation to Plant Composition 17

13. Osmosis 18

14. Cellulose in Plants 19

15. Physical Examination of the Corn Kernel 20

16. The Parts of a Seed 22

17. The Purpose of • the Parts of a Seed 23

18. Composition of Plant and Animal Products 23

Field Exercise ; — Farm Accounts 24

Section Two.— I

19. Evolution of the Corn Plant 25

20. Types of Corn 27

21. Vitality as It Affects Yield in Corn 29

22. Pollination of Corn 30

23. Judging Corn by Means of the Score Card 31

24. Proportion of Corn to Cob 33

25. Selecting Seed Corn in the Field 35

26. A Home Project in Seed Corn Production 36

27. Grading Seed Corn 37

28. Weight per Bushel of Different Varieties of Corn 37

29. Storing Seed Corn 38

30. To Determine the Shinkage of Corn 39

CEREAL CROPS.

31. The size and shape of the Corn Kernel 41

32. Field Exercise: Determining the value of tip and Butt Kernels 42

33. The Wheat Plant 42

34. A Study of the Head of Wlieat 43

35. Wheat,— Flour 44

36. The Stooling of the Wheat Plant 44

37. Preparing the Seed Bed for Winter Wheat 45

38. A Study of the Oat Head 46

39. Purity of Oats 47

40. A Study of the Root System of Plants 48

41. Structure of the Corn Plant 49

TABLE

O F

SECTION THREE.— FORAGE CROPS. Experiment Number Title Page

42. Silage SO

43. A Study of Cowpeas 52

44. A Study of Soybeans 53

45. \'arietics of Clovers and Related Crops 54

Field Exercise, — Clovers 55

46. Inoculation of Legumes 56

47. Inoculation of Legumes 57

Experiment Number Title Page

48. Inoculation of Legumes 58

49. Timothy 59

50. Crop Rotation 60

51. Directions for Scoring Barley 62

Field Exercise, — Chinch Bugs 65

Section Four.— Plant Economics. 53. 54. 55

56. 57. 58.

59. 50. 61.

Testing Seeds for \'itality 66 62.

Testing Seeds for Mtality 67 63.

Testing Seeds for Purity 68 64.

Field Exercise, — Club Project 69 65.

To Determine the Mability of Wheat 70 66.

Corn Smut 71 67.

Parts of a Flower 72 68.

Field Exercise, — Plant Starch Ti 69.

The Hessian Fly on ^^'heat 74 70.

Wheat Rust 75 71.

Stinking Smut of W'heat 76 72.

Field Exercise, — The Home Garden 77

Loose Smut of Wheat 78

Treating Oats for Smut 79

Propagation of Plants 80

W'eeds and Their Classification 82

Weeds and Their Classification 84

Distribution of Weed Seed 86

Blue Printing Plants 86

Clover Crop Pests. — Seed Chalcid 87

Clover Crop Pests. — Root-Borer 87

Clover Crop Pests. — Seed-Midge 88

Corn Crop Pests 89

Field Exercise, — Corn Ear ^\'orms 89