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How to Grow More Vegetables : And Fruits, Nuts ... - Shroomery

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i-<br />

a<br />

1<br />

2<br />

Income*<br />

31<br />

222 WHO IS ECOLOGY ACTION?<br />

1<br />

2<br />

Vegetable<br />

yields #<br />

31<br />

mechanized organic techniques (assuming similar non-meat<br />

diets). In addition, chemical techniques deplete the soil’s<br />

capacity <strong>to</strong> produce. Wilson Clark, in the January 1975 issue of<br />

Smithsonian, noted: “Even though more corn was produced per<br />

acre in 1968 than in the 1940s, the efficiency with which crops<br />

used available [nitrogen] fertilizer actually declined fivefold.”<br />

Chemical agriculture requires ever-increasing amounts of<br />

fertilizer at an increasing cost as petroleum supplies dwindle.<br />

The use of chemical fertilizers depletes beneficial microbial life,<br />

breaks down soil structure, and adds <strong>to</strong> soil salinity. Impoverished<br />

soil makes crops more vulnerable <strong>to</strong> disease and insect<br />

attack and requires increasing amounts of pesticides <strong>to</strong> sustain<br />

production. “A modern agriculture, racing one step ahead of the<br />

POTENTIAL OF SMALL-SCALE GROW BIOINTENSIVE FOOD-RAISING<br />

AS INDICATED BY ECOLOGY ACTION’S RESEARCH TO DATE<br />

Production as compared <strong>to</strong> U.S. commercial averages, per unit area<br />

#<br />

1<br />

Grain<br />

yields<br />

2<br />

3+<br />

1<br />

3<br />

Nutrition<br />

per unit<br />

area<br />

6<br />

= U.S. Commercial<br />

Agricultural Average<br />

= GROW BIOINTENSIVE Low<br />

= GROW BIOINTENSIVE High<br />

*<strong>More</strong> if food is marketed<br />

directly <strong>to</strong> s<strong>to</strong>re or consumer.<br />

# Full range does not apply<br />

<strong>to</strong> all crops.

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