The
Food and Agriculture Organization identified organic management practices
as follows:
Soil management
practices include increasing humus content and biological activity as
well as meeting mineral deficiency of soils:
- manipulation
of crop rotations and strip-cropping: deep and shallow rooted plants
bring different nutrients to the surface; different crops require different
nutrients;
- growing
green manure;
- undersowing;
- application
of rock dust, manure, crop and agro-industry residues, household waste,
compost;
- soil tillage,
such as use of an implement which aerates the soil.
Pest management
practices include:
- manipulation
of crop rotations, to minimize survival of crop-specific pests (in the
form of, for example, insect eggs, fungi) which can infest the next
crop;
- strip
cropping, to moderate spreading of pests over large areas;
- manipulation
of pH-level or moisture level of the soil (in irrigated areas);
- manipulation
of planting dates, to plant at a time most optimal for the crop, or
least beneficial for the pest;
- adjustment
of seeding rates, to achieve an optimal rate given the need to crowd
out weeds or avoid insects;
- use of
appropriate plant varieties and livestock breeds for local conditions;
- implementation
of stock culling programmes, which emphasize genetic resistance against
certain diseases;
- use of
stock buying programmes, which minimize the import of diseases onto
the farm;
- limiting
field size, which aids in weed management by livestock;
- biological
control methods, to encourage natural enemies of pests by providing
habitat (for example hedges) or by breeding and releasing them in areas
where they are required;
- trapping
insects, possibly with the use of lures such as pheromones;
- biological
pesticides (for example, derris dust, pyrethrum, rotenone) of which
the active ingredient is
- short-lasting,
and which may be produced locally.
Post-harvest
practices include:
- in temperate
countries, grains can be well conserved when harvested and stocked in
conditions which allow air circulation (in jute sacs, ventilated silos,
etc.);
- in tropical
countries, humidity and high temperatures pose problems which can be
overcome through: harvesting at complete maturity and during dry weather;
storing without stripping off the bark; drying of grains under the sun
before storing; mixing sand, china-clay, or wood ash to grains; adding
little quantities of nut oil to niebe grains (very effective on weevil);
addition of smoke or certain plants to repel insects; etc.;
- in ancient
Europe and the Mediterranean basin, grains were stored in buried pits
for several years: the anaerobic conditions of these pits prevented
insect proliferation and the grains underwent an initial fermentation
which protected it from insects and mouldiness, despite the high degree
of humidity;
-
traditional
procedures allow conservation and enhancement of the nutritional value
of cereals and leguminous, such as: fomenting rice (rice is bathed,
steamed and dried) destroys insect eggs; transforming wheat in bourghoul
(wheat is germinated, boiled, dried and crushed) enriches the cereal
with vitamins and essential amino-acids (lysine) and pre-digest starch;
fermenting certain leguminous (for example, soy in the Far East and
nere in Africa) gives high nutritional quality products which can
be conserved for years; fermented fish sauce (nuoc-nam) allows simple
fish conservation and offers an alternative to fish drying, especially
that the latter entails inevitable losses in tropical conditions.
Source: www.fao.org/sd/epdirect/Epre0056.htm
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