Agriculture revolution! -I
RAIS AHMAD KHAN
KARACHI (January 16 2008): Pakistan has shifted away from being a purely agricultural country to a mixed economy during the past 60 years, but still, a majority of the people depend on agricultural activities and products for a livelihood, either as a food staple, or raw material for industries.
Rapid industrialisation removed the focus on farming, so that gradually, from a food surplus country, we have turned into a major importer of wheat, and occasionally sugar, and even fibres for textiles.
Mechanisation and extensive use of fertilisers did improve yields, but the growing population outpaced the growth in agri-products. Therefore, some thoughts "out of the box" are necessary to remedy the situation.
In advanced countries, people are turning away from chemically treated produce, and demand organic foods in their purest forms. That means a total abstention from fruits, vegetables, corns or grains that have been raised using chemical fertilisers or pesticides. Even fish or crustaceans, caught from waters, contaminated by effluents or chemicals through rivers or sub-soil seepage, come in the prohibited category, which means loss of export opportunity for most of our fishing operations.
What is to be done in such a case? Genetically modified seeds or products automatically lose their appeal to the discerning consumers. So what is the alternative? Here is an attempt to provide some of the answers, to increase productivity without creating new problems.
a) Tissue culture:
Using the best and purest mother plants for 'micro-propagation in vitro' (tissue culture), they can be replicated with astounding results of purity (no mutations, no infestations, free from bacteria or other viral infections), increased and faster yields, and the option to produce "off-season" under controlled conditions.
This process will be most promising for fruits and flowers, to meet domestic and export demand. Initial costs are high, but laboratories set up in some key locations, as a joint venture of public and private sectors, can provide opportunities to benefit a large number of communities. The initial capital can be recouped with a huge margin of profit in a few months to a few years, depending on the varieties of desired products.
b) Drip irrigation:
Using pure or purified water in small quantities, huge savings can be made in the quantum of irrigation water needed, besides improving yields and protection from plant diseases or soil contamination.
c) Modern systems of enhancing yields:
In some highly industrialised countries where land is at a premium and farming activity very much limited, crops are raised in small spaces with phenomenal yields. For example in a tomato farm, under controlled conditions, up to 12,000 fruits have been harvested from a single plant, or 28 tonnes of potatoes per acre, or up to 20 watermelons (uniform in size and square in shape for use of packing and handling) per square-meter of farm-land!
These figures may sound incredible but have been proved and are being practically achieved in modern farming. The question of initial costs (including transfer of technology) is an inhibiting factor, beyond the reach of common farmers, but this can be solved by government grants for acquisition of technology, and co-operatives to run the farming operations.
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