100 to 120 days, indeterminate — 'Hatsutaka' plants grow to about two feet and have white flowers. The seeds are large, light green with black hilums (eye), and contain 41% protein and 20% oil.
The USDA accession number for 'Hatsutaka' soy is PI 540740. It was originally obtained from the Sakate Seed Company of Japan, and was donated by J. Konovsky of Washington State University in 1990. Each packet contains 25 to 30 seeds.
Sow seeds about one inch deep, three to four inches apart. Although you can plant in rows, they can be planted densely and allowed to form a canopy. This will help control weed growth. Soybeans are tolerant of drought and poor soil since they fix nitrogen. They will, however, benefit from fertile soil.
Soybean flowers are perfect (self-fertile) and cross pollination is almost non-existent, making saving seed easy. Allow pods to fully develop and dry on the plants.
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