نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش‌آموخته‌ی کارشناسی ارشد گروه علوم و مهندسی باغبانی، دانشکده علوم زراعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری ، ایران
2 دانشیار گروه باغبانی، دانشکده علوم زراعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
To detect mineral deficiency in orange trees, like other fruit trees, leaf analysis is usually used. According to existing protocols, sampling should be done from four to seven-month-old leaves, but if an element is in the deficiency range at this time, compensating for it will not affect the yield and quality of the current year's crop. In the time interval between the start of vegetative growth and flowering, some of the stages of tree growth and development, such as cell division, flower and fruit set, and fruit dropping, have taken place. Therefore, in order to investigate the correlation between the nutritional elements in the flowers and leaves of Thompson navel oranges, this study was conducted by sampling 160 trees located in 8 orchards. The results showed that there is a significant correlation between the concentrations of nitrogen, potassium, phosphorus, and calcium in the flowers and the concentrations of these elements in the leaves (90 days later). However, no significant correlation was observed between the magnesium values in the flowers and leaves. A negative correlation was observed between iron and copper in the flowers and boron in the leaves. Therefore, by analyzing these elements in the orange blossom in the spring instead of in the leaves, in the middle of the growing season, it can be used as a reliable and timely method to detect the nutritional status of orange trees. With timely feeding, the current year's crop will not be affected by a specific element deficiency.
کلیدواژه‌ها [English]
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