THE INFLUENCE OF SOME NPK MINERAL FERTILIZERS DOSES ON FIELD PEAS

Andreea Lidia Jurjescu, Marinel Nicolae Horablaga, Florin Sala

Abstract


The influence of mineral fertilization on the field pea crop was analyzed based on some elements of productivity and biological yield. Fertilizers with nitrogen (0, 25, 75 kg a.s. /ha; a.s. active substance), phosphorus (0, 80 kg a.s. /ha) and potassium (0, 40, 80, 120 kg a.s. /ha) were applied to the field peas crop Boxer cultivar. The number of pods (Pp_N) varied between 88.00 - 202.00 /m2. The weight of the pods (Pp_W) varied between 50.20 – 174.40±10.77 g/m2. The weight of the peas grains (Pg_W) varied between 35.10 – 144.10±9.26 g/m2. The weight of pea pods shells (Pps_W) varied between 15.00 – 37.00±1.64 g/m2. Biological yield (BY) varied between 0.23 - 0.38±0.01 kg/m2. The ratio between PgW/Pp_W was calculated and values between 0.680 – 0.830±0.011 were recorded. The Pps_W/Pp_W ratio was calculated and values between 0.170 - 0.320±0.011 were recorded. Different levels of correlation were recorded between determined parameters. Mathematical models were obtained that described the variation of the parameters considered, in relation to NPK fertilizers.

Keywords


biological yield; field peas; grain production; leguminous crops, mineral fertilizers

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LUCRĂRI ȘTIINȚIFICE MANAGEMENT AGRICOL

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