Produksi dan Kualitas Buah Jeruk pada Beberapa Dosis Pupuk NPK dan Frekuensi Pemberian Pupuk Daun
Abstract
This study aimed to study the production and quality of citrus fruit at some NPK fertilizer doses and frequency of foliar application. This research was conducted from November 2019 until September 2020 at experimental farm of the Faculty of Agriculture and Laboratory of the Faculty of Mathematics and Natural Sciences, Jenderal Soedirman University. The research used Randomized Complete Block Design (RCBD) with two factors. The first factor was the doses of NPK fertilizer (0, 25, 50, and 75 g / plant) and the second factor was the frequency of foliar application (0, 2, 4, and 6 times). The result showed that the highest production of citrus was achieved by fertilization of NPK 75 g / plant, meanwhile the highest quality was achieved by 50 g/plant. Foliar application of six times gave the highest production and fruit diameter; foliar application of four times gave the highest weight per fruit and the lowest fruit drop. The highest content of vitamin C and total sugar was achieved by foliar application of two times.
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