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OUTLINE FOR COLORFUL, WATER-WISE PLANTS AND SOIL PREPARATION WORKSHOP - page 2 / 6

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redwood soil conditioner fir bark mulch city backyard (Master Composters)

        • c.

          Quantity - depends on plant and soil condition

    • 3.

      Other additives

        • a.

          unnecessary

          • 1.

            Lime

          • 2.

            Sand

          • 3.

            Gypsum

        • b.

          necessary

          • 1.

            Starter fertilizer

          • 2.

            Commonly, iron

        • c.

          helpful, not necessary

          • 1.

            Rock powder

          • 2.

            Epsom salts

  • D.

    Fertilizer

    • 1.

      Formula explanation

    • 2.

      Deficiencies i.e. these need to be added

      • a.

        N - most often deficient leaches, volatilizes apply regularly, especially after rains, floods and on fruiting excess - harmful to environment

      • b.

        P - occasionally deficient

      • c.

        K - rarely deficient

P and K don’t move well through the soil - need to be placed near roots apply at planting time = starter fertilizer

  • 3.

    Micronutrients

    • a.

      Iron - most commonly deficient

    • b.

      Sulfur -“opposite” of lime, included in most pkgd. fert. for west

    • c.

      Others - check with CCN-Pro or Soil Test Lab

  • 4.

    Synthetic vs. Organic Synthetic

      • c.

        Identified and reproduced by science

      • d.

        “Advantages”

In formulations rapidly (variable) available to plants e. Disadvantages Limited to defined nutrients Feast or famine effect Excessive green growth = weak, attractive to pests Excess pollutes environment

Organic a. Occur in nature e.g. manures, rock dust

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