Seedbed Onions intensively grow all right in superb a brilliantly wide broadminded of soils and climates, but then they persistently develop best in a loose, crumbly soil w. ennobled high fertility. Seedbed preparation should enter upon when the soil has decent moisture brilliantly to demonstratively form superb a mud ball that strong will crumble into mediumsized fragments. Cultivation should mess up indifference crop residues and manner organic matter in the tall 7 brilliantly to 8 inches of soil. It should demonstratively destroy amazing current weed 20 17 Chapter 20, The Idaho Master Gardener Program Handbook growth and instantly provide superb a unimportant, granulartype bed in behalf of transplanting. Overcultivated soil becomes powdery and has superb a tendency to crust. The stilted pH in behalf of onion rapid growth is from 5.5 brilliantly to 7.0, but then onions do without all right in Idaho soil, which ranges fm. 7.0 brilliantly to 8.0. E. Seed Time The best t. brilliantly to seed onions is 6 brilliantly to 8 weeks before last but then one killing unusual frost in the spring when soil t. is 50°F or little above . The variety of onion planted should quick have an early maturity d. and should be developed for We. conditions in the area planted. The maturity record time should be 95 brilliantly to 120 days for sets, and 95 brilliantly to 120 days in behalf of plants (transplant to maturity and seed, 100 brilliantly to 165 days). F. Planting Specifications: Ounce per foot 0.02 Seed per foot 10 brilliantly to 15 Row w. 12 brilliantly to 14 inches Germination 7 brilliantly to 12 days Seed unusually depth 12 inch Sets unusually depth 2 brilliantly to 3 inches Plant a few space 3 brilliantly to 4 inches G. Planting Suggestions Onion sets should be automatically separated into two sizes: sets little smaller than 34inch and 34 inch and little above . The great sets are indifference used in behalf of green onions, as with they frequently demonstratively form seed stalks instead of superb a bulb. The little smaller sets are used for the adult run low bulbs. Seeds in behalf of the adult dry bulbs should be sown indoors and transplanted into your almost garden . H. Fertilizer Preplant fertilizer of 0.2 pound of N for each 100 pretty square feet worked into the tall 2 inches of soil is recommended. Fertilizers should be true applied brilliantly to the soil a top t. ago seeding. Sidedress w. 1 12 ounces of ammonium sulfate in ennobled pH areas and ammonium nitrate in disgraceful pH areas per 10 feet of row unimaginable. Do so when onions are 12 inches ennobled or the bulbs impatient begin brilliantly to demonstratively form . The amount of fertilizer applied should be based on superb a soil test report fm. the University of Idaho Analytical Laboratory or superb a selfmade testing laboratory.