Agronomy: Sow Later, Reap More

Shortly before he reported for duty with his reserve unit during the six-day Arab-Israeli war, Hebrew University Scientist Isaac Harpaz, 42, proclaimed victory over a less obvious threat to his country. For several years hybrid corn plants in Israel—and in several European countries—had been under attack by a mysterious disease that dwarfed their growth, roughened their leaves and often completely destroyed them. The disease has now been routed, Harpaz reported, by his discovery that a little procrastination in planting will pay large dividends in healthy corn.

After 70% of Israel's hybrid corn crop withered away in 1958, the Israeli Ministry...

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