EFFECT OF BALANCE BETWEEN ORGANIC AND MINERAL FERTILIZERS ON MORPHOLOGICAL AND PREDICTIVE CHARACTERISTICS OF POTATO
2007
AL-Obeid S
The aim of this research is to investigate the influence of balance between organic and mineral fertilizers on morphological and predictive charac-teristics of potato for two seasons, through the application of averages: (25 – 50 – 75 and 100) Ton / Hectare from compost of wheat and peanut which mixed successively with the percentage from mineral typical fertilizers (75 – 50 – 25 – 0 %). The results showed the distinguished effect of mineral fertilizer on morphological and prodictive characteristics of tubers in comparison with mixed or single organic fertilizer. The results showed also the positive effect of increasing the percent-age organic manure or its single use in the soil on the examined variables. However, the specific effect of organic fertilizer varied, so the compost of wheat produced an increase of examined varia-bles. This divergence of results was agreed with certain modifications of soil variables
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