At first Kuan-Shu instructed farmers about green cultivation and the dangers of pesticides and chemical fertilizers.
No chemical fertilizers are used, just organic fertilizer sent straight from the gardens at Castel Gandolfo.
He wanted us to plant corn everywhere and start production of chemical fertilizers.
Runoff of nitrates and nitrites from fields sprayed with chemical fertilizers get into drinking water and cause cancer. can lead to cancer.
So how is it that the rubes, with their grease-stained hands, reeking of the smell of manure or chemical fertilizers, have outperformed the darlings of the information age?
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Prior to the "Special Period" Cuba had been a heavy user of oil-based chemical fertilizers, and much of the land was heavily degraded, requiring years of careful manuring to restore fertility.
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Better plant varieties, chemical fertilizers and agricultural management contributed to the great increase in agricultural yields of the past century, but part of the increase almost certainly came from additional CO2 in the atmosphere.
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The likely impact includes forest conversion to agricultural land, a drop in biological diversity as a result of monocropping and the massive use of chemical fertilizers, pesticides and herbicides, unsustainable levels of water abstraction and a greater risk of water-related conflicts with local communities and neighbouring States sharing the same transboundary river systems.
This means no artificial fertilizers, chemical pesticides, herbicides, plant growth regulators or genetically modified organisms.
The focus on data is intentional: While other classes teach ag students how to repair combines or learn the proper chemical mixes of common fertilizers, students in agricultural economist Kevin Moore's "Returning to the Farm" class create business plans using financial information from their own family farms.
Aside from organic sulfur and copper mixes, they use no chemical sprays, no artificial fertilizers or pesticides.
Companies that have nothing to do with chemical weapons--producers of fertilizers, pharmaceuticals and plastics--will bear a heavy burden.
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Facilities not so declared can continue to operate--yet almost any factory capable of producing fertilizers, insecticides, pharmaceuticals or plastics can also make chemical warfare agents.
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General Barbero has worked hard with other federal agencies to curb the availability of ammonium-nitrate fertilizers made in Pakistan, since traces of the agricultural chemical have shown up repeatedly in the aftermath of Taliban bombings.
In closed societies, factories making fertilizers, pharmaceuticals or plastics can easily cover their production of chemical weapons.
To put it bluntly, the idea was to bribe the have-nots to forgo biological and chemical arms by making available access to sophisticated means of producing pharmaceuticals, fertilizers and pesticides.
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What is more, virtually any plant used to manufacture fertilizers, pesticides or pharmaceutical products can be readily adapted to churn out large quantities of the toxic chemical agents.
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