Use of Manure and Whey qualities and their impact on quality and amino acid and nitrate of the Potato
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2009, Volume 7, Issue 4, Pages 172-188
AbstractAn experiment was carried out in the experimental field of Horticulture Dept., College of Agriculture, University of Baghdad for two seasons (spring 2007 and spring 2008) to produce potato by organic fertilization. In spring 2007 season, class A seed tubers while in spring 2008 season, class Elite of the cv. Desiree potato was used. Two experiment were designed, first was the use three sources of organic fertilizers (Poultry, cattle and sheep manure)in addition to conventional mineral fertilizer and no fertilization (control) treatment. In second experiment, cattle manure fertilizer in addition to whey were used. Poultry manure at 10% dominated in tuber quality characteristics where great at percent of dry matter (18.6 and 17.6%),starch (12.5 and11.7%)and total soluble solids was found for both seasons respectively. Poultry manure treatment at 10% in creased tuber content of the amino acids including Glutamic acid (1.667 and 1.663), Aspargine (0.781 and 0.778), Alanine (0.881 and0.878), Arginine (0.996 and 0.993),Cysteine (0.351 and 0.349) and Histidine (0.463 and0.460mg/100g) for the two season respectively. Treatment of 10% poultry manure lowered nitrate percent in tubers 0.09 and 0.10 % for the two seasons respectively .Treatment of 15% cattle manure with whey also reduced nitrate percent to 01.and 011% for the two seasons respectively, whereas it was 0.20%,0.21% for mineral fertilizered potato and0.16%.0.17% for control of plant to the two seasons respectively.
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