26 Sep 2019
Potassium

Interaction of micronutrients with major nutrients with special reference to potassium

Ujwala Ranade-Malvi
Institute for Micronutrient Technology, India

Potassium is an essential element for plant growth and is an extremely dynamic ion in plant and soil system. As an ion, potassium is highly mobile in the plant system but only moderately mobile in the soil system. Just like humans require a balanced diet with appropriate amounts of carbohydrates, proteins, vitamins, minerals, fats and water, plants too require conditions of balanced nutrition. There is a pre-determined ratio of nutrients that is required by the plant system, depending on its life cycle, environment and its genotypic characteristics, to realize its maximum genetic potential.

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26 Sep 2019
Greater varieties

South Africa wants greater varietal spread of citrus & table grapes in Japanese trade

Carolize Jansen
www.freshplaza.com

A recent visit to Japan for the annual Tokyo International Conference on African Development (TICAD), which was joined by the Citrus Growers’ Association at the behest of President Cyril Ramaphosa, provided the association with a salient opportunity to address some nagging aspects of fruit trade with that country, as well as to press the fruit industry’s interests.

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26 Sep 2019
Mandarins for harvest

Farmers, researchers try to hold off deadly citrus greening long enough to find cure

Diane Nelson, UC Davis
https://phys.org

In an orange grove outside Exeter, California, workers climb aluminum ladders to pick fruit with expert speed. California produces 80 percent of the nation’s fresh oranges, tangerines and lemons, most of it in small Central California communities like these.

“This may be the last place in the world where you can still grow citrus,” says farmer Richard Bennett, reaching high to pull an orange from a tree. He peels it in two long ribbons, and the scent of zest fills the air. “Citrus is so important to our health and economy, and it’s threatened by a devastating disease.”

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