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2. Right source, rate, time and place for nutrients, fertilizer ...

   www.aol.com/source-rate-time-place-nutrients...

   Use the 4 Rs to help keep nutrients and fertilizer in the soil.

3. Ammonium sulfate - Wikipedia

   en.wikipedia.org/wiki/Ammonium_sulfate

   The primary use of ammonium sulfate is as a fertilizer for alkaline soils.In the soil, the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth.

4. Garden: It is time to test your garden soil - AOL

   www.aol.com/news/garden-time-test-garden-soil...

   Taking soil samples. Most gardeners need only submit one soil sample for analysis, no matter the size of the garden, bed or planting area. As long as the soil is not different in color, texture or ...

5. Is Wood Ash Good for the Garden? 5 Tips for Using This ... - AOL

   www.aol.com/wood-ash-good-garden-5-164600561.html

   Find out if wood ash is good for the garden and how to use it effectively to fertilize plants. ... around 6.5. If your soil is acidic (lower than 6.5) and you want to neutralize it, wood ash is a ...

6. Alkali soil - Wikipedia

   en.wikipedia.org/wiki/Alkali_soil

   Alkali, or alkaline, soils are clay soils with high pH (greater than 8.5), a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 metre depth. Alkali soils owe their unfavorable physico-chemical properties mainly to the dominating presence of sodium carbonate , which causes the soil to swell ...

7. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   Soil pH is a measure of the soil's acidity or alkalinity and is determined on a scale from 0 to 14, with 7 being neutral. A pH value below 7 indicates acidic soil, while a pH value above 7 indicates alkaline or basic soil. Soil acidification is a significant concern in agriculture and horticulture.