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Title

EFFECT OF DEEP OF CULTIVATION AND SEED SIZE ON REGENERATION AND PRODUCTIVITY OF SIX SPECIES OF ANNUAL MEDICS

Writers

ARIAPOUR A. | TORKNEZHAD A.

Pages

 Start Page 21 | End Page 27

Abstract

 One of the most important factors which influences high PRODUCTIVITY and REGENERATION of ANNUAL MEDICS on the improvement of dry lands and rangelands is the cultivation deep and SEED SIZE of ANNUAL MEDICS. Nowadays the plant fertilizers can improve dry lands and rangeland by reducing soil erosion and fertilizing the soil as well as the forage production. As plant fertilizers, ANNUAL MEDICS have high correlation between their cultivation deep, REGENERATION, SEED SIZE and their growth. So the determination of cultivation deep and SEED SIZE are regarded as a main factors for success of improving programs in dry lands and rangeland in a certain region. Chosen for experiment are six species of annual medic which can survive in different climates, produce sufficient forage, and fertilize the soil effectively.The experimental design in two sections: one was a 6×3×3 factorial employing Randomized Complete Block (RCB) with tree replications within 65 days. Tree levels of DEEP OF CULTIVATION chosen for species under study as 1cm, 2cm and 3cm. (factor A: species, factor B: deep). Other section was a 6×3×2 factorial employing (RCB). Two levels of size was big and small size (factor A: species, factor B: size of seed). The results showed that there is no significant difference in the diverse species in tree level of deeps, but there is most plant in 1cm DEEP OF CULTIVATION. Also there is significant difference among diverse size of seeds in the weight of dried forage, height and nodules in species. In big seeds weight of dried forage in all species averagely is 4098.5 kg/Hec. While mean weight of dried forage in small seeds is 3280.17 kg/Hec. Height of plant in big seeds and small seeds was 27.79 and 21.08cm respectively. Big seeds produced most nodules which in big seeds was 12.92 and in small seeds 11.83nodules.

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