The following information is provided by Ecolution. Please visit them for
more information at www.ecolution.com.
The Many Benefits of Hemp Agriculture
Hemp is the most environmentally positive crop, improving soil quality as
it grows. It requires no herbicides and is naturally resistant to insects,
fungus, and other pests. Hemp grows rapidly during its vegetative period,
becoming tall and thick. It suppresses weeds, and shades and mulches the
ground, which its deep taproots break up and aerate. These attributes
promote healthy microbial soil life and leave the earth in a condition
where it is easily worked and able to retain moisture during the next
growing season.
Requirements of Hemp Agriculture
Hemp is so gentle on the land that it can be grown year after year in the
same location, although this is not the most ecological option and is not
permitted by many organic certification bodies. It is best for fiber hemp
to be cultivated in rotation with cereal crops and legumes. In fact,
cereal crops will yield an extra 15-25% when cultivated after fiber hemp,
because hemp eliminates competing weeds and improves the health of the
soil. Crop rotation with hemp works well, since the ground is usually
available for other crops by the middle of August. Legumes such as
soybeans are the best preceding crop, because they add to the soil a lot
of nitrogen, the basic building block of plant growth. Nitrogen is a
crucial nutrient for hemp production, since hemp reaches a height of 10 to
12 feet during its short growing season of less than five months.
Supplying sufficient nitrogen is a big challenge with organic hemp
agriculture, and the use of artificial chemical fertilizers is prohibited
in organic agriculture. This requirement of nitrogen can be resolved with
proper cover cropping, rotation, and, if needed, the addition of manure.
Cotton's Superior Alternative
Hemp provides an ecological alternative to environmentally destructive
standard cotton cultivation. Cotton is one of the most environmentally
destructive agricultural crops, annually using over 275 million pounds of
pesticides in the US alone. This is in addition to massive quantities of
fertilizers, defoliants, growth regulators, and general biocides such as
methyl bromide. Cotton production requires an immense amount of water,
which depletes this resource and can cause salts to build up in the soil,
while hemp needs no irrigation at all. Also the wide spacing between
cotton plants allows the bare soils to bake and oxidize, releasing carbon
to the atmosphere and decreasing soil fertility.
Fossil Fuel Alternative
Hemp can reduce our use of synthetic textile fibers. Synthetic textile
fibers are not biodegradable, generate pollution in their production, and
are made from non-renewable petroleum. Hemp can also help us shift to a
carbohydrate-based sustainable economy, because it is the largest biomass
producer of any agricultural crop. This has tremendous potential for any
biomass energy generation system and as a feedstock for bio-plastics,
which are fully biodegradable and do not contaminate the soil after
decomposition or emit harmful gasses if incinerated.
Deforestation Alternative
Hemp can be processed into construction materials and paper products of
excellent strength and quality, easing some of the unsustainable burden
placed on our forests. An acre of hemp actually produces more than four
times as much pulp for paper making than an acre of trees when figured on
an annual basis. Additionally hemp requires no bleach in processing, due
to its low lignin content, and there is no dioxin produced from its
manufacture.