Parcelas de omisión de macronutrientes en el cultivo de maní (Arachis hypogaea L).

Abstract

The present investigation was carried out in the province of Santo Domingo de los Tsáchilas, Bombolí Parish, at km 26 via Chone, “April 15” Campus; Latitude: 0°15'26.546” S; Longitude: 79°22'56.208” W, with the objective of evaluating the omission of the macronutrients nitrogen, phosphorus and potassium (NPK) in the cultivation of peanuts (Arachis hypogaea L); a completely randomized block design (DBCA) with 6 treatments and 4 repetitions was established; Statistical analysis of these variables was performed by means of Tukey's significant test at 5%; the treatments consisted of comparisons of missing element in N-P-K applications, plus a complete nutrient treatment, a control and empirical (management of producers) at 30, 45, 60, 75 and 90 days. The analysis of the results determined that there are no statistical differences (p > 0.05) in the agronomic variables of the peanut, that is, plant height, number of nodes, number of leaves and flowers per plant on all the days evaluated, this The same response was presented in the variables number of capsules and capsules with a seed at the time of harvest; however, in the yield (weight of capsules ha-1) of the crop, significant differences were found (p < 0.05) in which the treatment with complete fertilization of N-P-K reached the highest production (3 461.11 kg ha-1) while the control without application of nutrients had the lowest value (1 680.56 kg ha-1) in this variable.