Sentences with phrase «additional arable»
«High population densities among farmers led them to expand to additional arable land,» Lipson said.
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New ways to utilize starch from cassava can provide food to an additional 30 million people without taking more arable land than today.
Conventional stockless arable farms depend on the input of synthetic nitrogen fertilizers, while stockpiled manure and slurry on livestock farms create additional emissions and other environmen - tal problems.
One example is improving yield on lands already deforested to produce crops, thereby preventing additional deforestation driven by increasing demand for arable land.