Nutrient content and accumulation in mini lettuce as a function of fertigation management strategies
نویسندگان
چکیده
ABSTRACT Determining the amount of nutrients accumulated by crops is an important tool for defining order in which are taken up and required. However, vary depending on genetic characteristics cultivars, climatic conditions, fertilization, soil management systems. The aim this study was to evaluate influence irrigation strategies doses nitrogen (N) fertigation content accumulation macro micronutrients N use efficiency mini romaine lettuce “Astorga” cultivated a protected environment, two consecutive crop cycles. treatments consisted three strategies: continuous (Cont), intermittent irrigation, with fractions day, at 1-hour intervals (Int1); 4-hour (Int2) (100 130 kg/ha N), daily fertigation. Intermittent (Int1 Int2) increased contents dry matter N, P, K, Ca, Mg, S, B, Fe, Mn Zn. dose only P first second cycles, respectively. In general, macronutrients following decreasing order: K>N>Ca>P>Mg>S, whereas followed Fe>Mn>Zn>B>Cu. Int1, Int2 100 optimized efficiency.
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ژورنال
عنوان ژورنال: Horticultura Brasileira
سال: 2022
ISSN: ['0102-0536', '1806-9991']
DOI: https://doi.org/10.1590/s0102-0536-20220408