EFFECT OF COMPOST AND SOME BIOFERTILIZERS ON GROWTH, YIELD AND QUALITY OF POTATO CROP (Solanum tuberosum L.) | ||
| Journal of Plant Production | ||
| Article 23, Volume 27, Issue 8, August 2002, Pages 5525-5537 PDF (1.48 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2002.256268 | ||
| Author | ||
| E. M. Awad, | ||
| Vegetable Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt | ||
| Abstract | ||
| Two field experiments were conducted during the fall (Nili) season of 1998/1999 and 1999/2000 at Abou Awad Village, Aga, Dakahlia Governorate, on potato cv. Oiamont to investigate the effect of compost Le. compost 1 (Rice straw and Wheat straw), compost 2 (City garbage manure) and some biofertilizers (Biogein, Phosphorein, phosphate dissolving bacteria (POB) and silicate decomposing bacteria (SOB) as a substitute for chemical fertilizers on potato plants. The obtained data show that the plants stand percentage at 45 days after planting was the highest with treatment 8 (compost 2 (City garbage manure) + Yz treatment 2 (Rock phosphate + Feldspar + Biogein + Phosphorein + Bacil/us circulans). Vegetative growth, in terms of plant height, number of main stems/plant, foliage fresh weight/plant (g) and foliage dry weight (%) at 75 (OAP) were increased by using the mineral fertilizer (control). NPK (%) in leaves at 75 (OAP) and tubers at harvesting were also increased by treatment of compost 2 (City garbage manure) + Y, treatment 3 (Rock jj~csphate + Feldspar+ Biogein + Bacillus megatrium + Bacillus circulans) during the both seasons.' C;: the other hand, to~1 tubers yield (tonlfed.), number of tubers/plant, average weight of tuberSi.,ioc:' (;1 '1nd dry weight of tubers (%) were significantly increased with this treatment in both seascns. Whi!" t:"!?'1tment of compost 1 increased starch ('Yo) in tubers, also the highest reduction in nitrate concentrauon (plJlllj'iii tubers - ,. was recorded for treatment 3 (Rock phosphate + Feldspar+ Biogein + Bacillus megatrium + BacillUS circulans) in the both seasons. Generally, the results indicate that using treatment of compost 2 (City garbage manure) + Y, treatment 3 (Rock phosphate + Feldspar+ Biogein + Bacil/us megatrium + Bacillus circulans) as a substitute of chemical fertilizers of potato plants improved tuber yield, quality and saved considerable amount of mineral fertilizers of NPK requirements. Likewise, inoculation by mixture of biofertilizers may be helpful in reducing the pollution of environment and may be recommended in potato bio- production. | ||
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