(1898 - 1977)
Abogado y escritor. Brillante intelectual marxista y luchador social. Aportó valiosas obras como poeta, latinoamericanista y martiano. El Consejo Mundial de la Paz le otorgó las Medallas de Plata y de Oro Joliot Curie, en 1959 y 1966, respectivamente.
Agrarian and Fishery Sciences
1989 | Project and construction of Systems of Irrigation and Plot Superficial Drainage
Main executives entity: National Institute of Sugarcane Research
Main author: Jesús R. Fonseca
Summary: It includes the integral conception of topographical rising, leveling project and construction, irrigation and drainage systems including irrigation forecast and an appropriate agrotechnique. This result could be applied in more than 56 000 caballerias of sugar cane soils, which are affected by the excess of humidity, as well as in 7 500 caballerias in non-cane agriculture soils. It began in 1990 with 4 101 caballerias of sugar cane soil benefited with plot drainage. It will be applied this year to other 4 000 caballerias, for 8 101 in total, and since 1991, approximately 6 000 are incorporated per year to this system, due to the creation of 201 brigades that now work in all the provinces of the country. More than 500 caballerias have been benefited in non-cane agriculture. These benefited areas are mainly located in the Company of Varied Cultivations Capt. Tomás, in Consolación del Sur, Pinar del Río, Macun Cattle Company, in Villa Clara, Calixto García Cattle Company, Holguín, Arrocera Vado del Yeso in Granma and others. The introduction of this result will report the following benefits in sugar cane agriculture:
- Increases yield in 30-50% that
represents from 20 000 to 40 000 arrobas/caballeria.
- Increases the useful life of favored stumps in one or two cuts.
- Reduces the affectations caused by the excess of humidity
and stops the salinization process.
- Diminishes sowing losses and facilitates
the mechanization of sowing, cultivation and
harvest.
- The plantation can last at least seven years
with five cuts, that is to say 2,5 years more than in the
present time. This means an annual saving of 516
pesos/caballeria in the amortization of
promotion (6 500 pesos/caballeria) and as a
consequence the reduction of annual areas in 36%
of the favored areas.
- The economic benefit produced by the increment of yield per caballeria reaches
4 755 MLC for the price of 14 cents per
pound of sugar and 15 746 rubles for the
agreement with the USSR.
- In non-sugar cane agriculture, the yields in the different cultivations increased from 20 to 50% obtaining an
economic benefit that varies among 100-150
pesos/caballeria according to the cultivation and
type of soil.
Performers: Sugar Cane Research Institute and Irrigation and Drainage Research Institute.
- Increases yield in 30-50% that
represents from 20 000 to 40 000 arrobas/caballeria.
- Increases the useful life of favored stumps in one or two cuts.
- Reduces the affectations caused by the excess of humidity
and stops the salinization process.
- Diminishes sowing losses and facilitates
the mechanization of sowing, cultivation and
harvest.
- The plantation can last at least seven years
with five cuts, that is to say 2,5 years more than in the
present time. This means an annual saving of 516
pesos/caballeria in the amortization of
promotion (6 500 pesos/caballeria) and as a
consequence the reduction of annual areas in 36%
of the favored areas.
- The economic benefit produced by the increment of yield per caballeria reaches
4 755 MLC for the price of 14 cents per
pound of sugar and 15 746 rubles for the
agreement with the USSR.
- In non-sugar cane agriculture, the yields in the different cultivations increased from 20 to 50% obtaining an
economic benefit that varies among 100-150
pesos/caballeria according to the cultivation and
type of soil.
Performers: Sugar Cane Research Institute and Irrigation and Drainage Research Institute.
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