Contents ix 
PAGES 
Organic matter. ‘ By cs me as < ‘ 63 
Soil moisture ‘ 5 ze ‘ 2 : - . 64 
Soil alkali. i 3 . x é x < 66 
Acid soils. : q a é x 3 . p 68 
Plant-food in the soil. F ‘ 5 : é 69 
Soil bacteria . : : ;. - ‘ ‘ ‘i ‘ 70 
Selecting a sugar-beet sol . 2. . . . 71 
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CHAPTER VI 
MANURING AND ROTATIONS . : : : . . 73-91 
Plant-food requirements of beets . - ‘i ‘ 2 74 
Ways of maintaining soil fertility. 2. . .  . 75 
How to determine fertilizer needs . ‘ ‘ é 76 
Commercial fertilizers for beets. " : 2 ‘ 77 
Nitrogen, 78 
Phosphorus, 79 
Potassium, 80 
Indirect fertilizers : : F : P ‘ ‘ 81 
Home-mixing of fertilizers . . . . . ) , 82 
Farm manure for sugar-beets : . : ; . 82 
Handling farm manure, 84 
Green-manures . 3 3 : , ‘ ~ ‘ 85 
Rotations . 2 ‘ . . ‘ ‘ 86 
Reasons for crop rotations, 86 
Principles of good rotations, 88 
Rotations with sugar-beets, 88 
CHAPTER VII 
‘+; CONTRACTS FOR RAISING BEETS . 5 ‘ 3 - 92-102 
Advantages of contracting . : ¢ . : : 92 
Items included in the contract . F - ‘ 3 93 
