The Secret of the Green Thumb |
Contents
CHAPTER | 3 |
SUPPLY LINES AND OPERATION CENTERS | 31 |
OXYGEN | 58 |
Copyright | |
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acid amount animals areas bacteria become branches buds bulbs called carry cause cells characteristics chemical chromosomes color containing continued covered crop crossed culture desirable develop disease dominant drought dwarf early effective example fall fertilizer FIGURE flat flower foliage forests four fruit garden gene germinate give grafting grass green grow grown growth hormone hybrid inches increase insects kill kinds land leaf leaves length light living minerals moved natural necessary nitrogen nutrients occur organisms ovary parent peas period petals pine plants pollen present produced regions removed require result roots rose season seed seedlings selection shade short shrubs soil solution species sprayed spring stamens stem summer surface sweet tall temperature trees types United upper usually varieties vegetation week winter yellow