العلوم والبيئة

The migration that remade Africa

المصدر: Phys.org - latest science and technology news stories · نُشر

The migration that remade Africa
المصدر: Phys.org - latest science and technology news stories

It's not easy to extract iron from its ore. But the peoples of the ancient city of Great Zimbabwe—the capital of a thriving kingdom in southern Africa between A.D. 1000 and 1700—were masters.

It's not easy to extract iron from its ore. But the peoples of the ancient city of Great Zimbabwe—the capital of a thriving kingdom in southern Africa between A.D. 1000 and 1700—were masters.

اقرأ المصدر الأصلي
Two genes, two harvests: Adapting barley for double cropping
العلوم والبيئة

Two genes, two harvests: Adapting barley for double cropping

Growing two crops in succession on the same land requires a tight schedule. In parts of central and eastern China, farmers sow barley in autumn and harvest it in late spring. It is then followed by a summer crop, such as rice. For this cropping sequence to succeed, the barley mus

Phys.org - latest science and technology news stories ·