Nitrate of soda A strong alkaline fertilizer with about 15% nitrogen.
Nitrification The process of oxidizing ammonium salts into nitrogen for plants.
Notched With V-shaped indentations.
Soil pH should be between 6.0 and 6.7 Apply nitrate of soda between the rows to stimulate growth. Harvest spinach when young or the plants will go to seed.
Squash
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The result of a chemical process by which nitrogen in plant and animal waste is oxidised by soil bacteria. It first changes into nitrites, then into nitrates, which can be absorbed by plant roots. Nitrate of soda is an alkaline fertiliser that's ...
of a mixed fertilizer per 100 feet of row or 300 square feet. For most crops, additional nitrogen as side or top dressing may be made one or more times, using 1 lb. of ammonium nitrate or 2 lbs. of nitrate of soda per 100 feet of row.
 See also: Soil, Plant, Flower, Manure, Fertilize
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