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Productivity of permanent grassland in Tunisia and measures taken for its improvement

, : Productivity of permanent grassland in Tunisia and measures taken for its improvement. Studia i Materiay Akademii Rolniczej im Hugona Koataja w Krakowie, Rolnictwo w Subtropiku ( 15): 45-57

Permanent grassland is found mainly in central and SE Tunisia, in areas unsuitable for field crops and orchards. It consists mostly of extensive, heavily overgrazed and more or less degraded pastures.

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Related references

Mueller, G., 1939: Results of mammal treatment and of measures for the improvement of permanent grassland in the Netzebruch, Warthebruch, and lower Oderbruch. The region concerned is composed of river lowlands of a marshy nature, where the chief problem is the regulation of moisture conditions during the growth period. Long-duration experiments conducted by Protessor Koenekamp and his collaborators at L...

Stryckers. J., 1952: Improvement of the flora of permanent grassland. 3. Effect of herbicide extenders and manurial treatment on the herbicidal effect of synthetic hormones on permanent grassland. In 1951, three trials were carried out in Belgium to determine the effect of using ammonium nitrate, sodium nitrate, lime and sand as extenders for the repeated broadcasting of small amounts of 2, 4-D and MCPA on grassland. In the first trial, 4 a...

Morhain, B.; Blanchart, G.; Jaumain, J.L.; Vignon, B., 1975: Feeding value of fodder from permanent grassland in Lorraine used for green fodder, silage and hay and the productivity of the grassland. Investigations of the feeding value of permanent pastures dominated by cocksfoot, tall fescue, meadow fescue, perennial ryegrass, Poa trivialis and P. pratensis in 1971-2 showed that the energy value was <0.05 FU/kg DM until late June and <0...

Nevens, F.; Reheul, D., 2001: Ley - arable rotation versus permanent arable land and permanent grassland: productivity and N-use. A 35-year old ley-arable experiment, established during 1966 in Belgium, was used to compare the yields of permanent grasslands with the yields of temporary grasslands, alternating every 3 years with arable forages. The following treatments were e...

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Tisliar E., 1989: The effect of mowing on the productivity of permanent grassland. In 1981 to 1984 the effects were analyzed of different cutting mechanisms, used in grassland fertilized at gradated nitrogen rates (0. 150, 300 kg per hectare), on the dry matter output and species composition of the grassland, considering growth...

Haken, D.; Kvitek, T., 1986: Productivity of permanent grassland on soils of different thickness. In field studies in 1980-83 in the potato/rye production region, the growth and botanical composition of permanent grasslands on shallow and medium depth soils was compared in relation to the application of no fertilizer, 35 kg P + 66 kg K or 80,...

Harasim, A., 1978: Possibility of increasing the permanent grassland productivity. Wiadomosci melioracyjne i lakarskie 21(10): 250-252

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Forbes, T.J.; Dibb, C.; Green, J.O.; Hopkins, A.; Peel, S., 1980: Factors affecting the productivity of permanent grassland. The national Farm Study was carried out jointly by the Grassland Research Institute (GRI) and Agricultural Development Advisory Service (ADAS) as part of a Permanent Pasture Project. The objectives of the study were to identify factors limiting ou...