Effect of balanced fertilizer use on quality and quantity of apricot.
2008
Bay Burdi, Ahmad | Zargari Pur, Parisa | Zamani, Sedq A`li
Apricot(Prunus armeniaca) is one of the most important horticultural crops in East Azarbaijan. Two experiments were conducted in Sahand horticultural research station and Marand region as RCBD based factorial in three replicates for four years from 83 to 87. The most yield (47.2 ton/ha) produced in 3rd year in Marand by applying nitrogen. In 4th year, applying N, P, and K produced the highest yield in Marand. The longest berry length was 3.71 cm in N applying and the longest berry length was 4 cm in 4th year by applying P in Marand. The highest fertilizer using efficiency obtained by applying P, Fe, and Zn in drip irrigation and its leaf area index was bigger than conventional irrigation. In Sahand station, the highest leaf area and soluble dry matter percentage produced by N applying in 1st year, the highest soluble dry matter percentage produced by drip irrigation, and the highest berry diameter (3.38 cm) produced by N applying in 2nd year. The highest leaf chlorophyll content obtained by Fe-chelate in 1st year. The highest berry acidity produced by N applying. In Marand region, highest tissue firmness (10.53 kg/cm2) obtained by ZnSO4 in 1st year and highest elongation growth in 2nd year by N application. In two regions, highest sugar percentage and leaf N produced by N applying.
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