NGHIÊN CỨU ẢNH HƯỞNG CỦA MẬT ĐỘ TRỒNG VÀ LIỀU LƯỢNG PHÂN BÓN NPK ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÃ NẲNG SUẤT GIÔNG CHANH LEO ĐÀI NÔNG 1 TẠI HUYỆN BÁ THƯỚC, TỈNH THANH HÓA

Abstract

Study on the effects o f the densities and the fertilizer dosages NPKS on the growth, development, yields o f passion fruit plant in the 2018 - 2019 season at Ba Thuoc district, Thanh Hoa. The results of our study showed that the density of M4 (1,100 trees/ha) has the shortest growing time of 255 - 265 days and the density of M l (500 trees/ha) has the longest growing time of 258 -272 days. When increasing the density and investing in fertilizer, passion fruit yield also increased, increasing to density o f 900 plant/ha and fertilizer amount of 0.7 kg N + 0.5 kg P2O5 + 1.1 kg KỉO/plant for the highest yield o f 43.2 tons/ha. The formula M1P1 (500 plants/ha and no additional fertilizer) has the smallest actual yield o f 18.7 tons/ha.
Keywords: Passion fruit, density, growth, yields.