Evaluación de tres dosis de fertilizante en plantación de Pinus radiata D. Don en la escuela de formación de soldados del Ecuador, parroquia Pisque, cantón Ambato

Abstract

The present research proposes: To evaluate thee doses of fertilizer in plantation of Pinus radiate D. Don in the Training School Of Soldiers of Ecuador, Pisque Parish, Canton Ambato. The field of fertilization in forest plantation in Ecuador is new and there are no references that serve for the management of stands, which contributes to a high mortality and low growth of the trees, In addition to evaluating the growth in height and diameter of the plants of Pinus radiate of D. Don with doses of 30, 45 y 60 gr. Of chemical fertilizer urea yellow ( 40 % nitrogen / 15% sulfur) * 3 applications every 30 days, Height and diameter variables of plants were also evaluated in the proposed period, determination of the best treatment under study, economic analysis of the same ones. The experimental design used was the Completely Randomized Desing (CRD), with four treatments including the control, with 3 replicates, which determined that treatments based on yellow urea chemical fertilizer (40% N and 15% S) in plants of Pinus Radiata D. Don, they show significant differences in the plants growth so much in the height in the different periods an in the diameter, in treatment the best result presented was T3 60 gr. Of the yellow urea (40% N and 15% S) * 3 applications every 30 days, which contributed to the soil (72 gr N and 27 gr S), causing the greatest increases in height and diameter of plant, this obtained a cost of 29 cents/plant, based on what was obtained in this research. The use of calcium sulfate as an amendment of highly alkaline pH soils is recommended.

Keywords . PINE PLATATION – FOREST PLANTACTION / YELOW UREA.