VARIATION IN YIELD AND QUALITY OF SPINACH PRODUCES AT DIFFERENT MINERAL NUTRITION

The effect of nitrogen fertilization with 0, 50, 100, 150 and 200 kg N/ha at P₅₀K₅₀ P₁₀₀K₁₀₀ and P₁₅₀K₁₅₀ background on the yield and quality of the spinach produce from variety “Zimen edar” was studied during 3 years in field experiment on heavy leached meadow-cinnamon soil, in the Maritsa Vegetable Crops Research Institute, Plovdiv.
The effect of increasing nitrogen rates on the size of yield, mineral composition, dry matter and nitrogen content in spinach produce was established.
It is established that the fertilization with N₁₀₀P₁₀₀K₁₀₀ is economically the most effective in the conditions of heavy leached meadow-cinnamonic soil, where the yield is high and nitrate content of the produce is below nitrate content accepted admissible amount limit (ACL) for Bulgaria.

IV Balkan Symposium on Vegetables and Potatoes

H.M. Boteva

spinach, mineral fertilization, mineral composition, dry matter, nitrate content

https://doi.org/10.17660/ActaHortic.2009.830.58