WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Wednesday, September 26, 2018

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4585. Morrow, L.. 1990. Meaningful relationships.. Growers Guide, May 1990 A6.
Calcium is an important nutrient to consider. It gives strength to plant cell walls, making them more resistant to disease. It also interacts with nitrogen and helps the latter enter the plant through the leaves when foliar fed. It also reduces N volatility. Foliar applications of N have been shown to be twice as effective as soil applications. Calcium by itself is best applied at seeding time.

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