Effect of manure and NPK fertilizers on growth and production of onion (Allium cepa L.)

Abstract

Fertilization is one of efforts done by farmers to increase the production and quality of onions. This research aimed to find out the effect of manure and NPK fertilizers to the growth and production of onions. This research was conducted in Paloh Lada Village, Dewantara Sub-district, North Aceh and Agroecotechnology Laboratory, Faculty of Agriculture, Malikussaleh University from May to July 2018. This research used Randomized Block Design (RBD) Factorial. The first factor was manure (P): 15 tons/ha (P1), 20 tons/ha (P2), 25 tons/ha (P3). The second factor was NPK fertilizers (N): 150 kg/ha (N1), 200 kg/ha (N2) and 250 kg/ha (N3). The results indicated that there was high significant interaction between manure and NPK fertilizers on wet weight and dry weight of onion bulbs and also bulb yield. The application of manure significantly enhanced the wet weight and dry weight of onion bulbs and its production and it also significantly increased the plant height at 14 days after planting. The application of NPK increased the wet weight and production of onion bulbs significantly. Also, the combination application of manure 15 tons/ha and NPK fertilizers 150 kg/ha did improve the wet weight, dry weight and production of onion bulbs.

Characterization of Green Onion With NPK Fertilization and Foliar Application of Hornwort Extract

“…However, phosphorus contributes to synthesizing some organic compounds that have greater importance in biological activities, such as, nucleic acids, NADP, and NAD, for oxidation and reduction (Malhotra et al, 2018). These physiological activities occur in the photosynthesis and assimilation of carbohydrates and fatty acids, thus reflecting the floral characteristics through its indirect effect on C/N (Al-Sahaf, 1989;Maisura et al, 2019).…”

PENGARUH PENGGUNAAN TEKNOLOGI CRF (Controlled Release Fertilizer) PADA UJI EFEKTIVITAS TANAMAN BAWANG MERAH

“…Untuk hasil paling optimal ditunjukan pada 2 kali pemupukan dengan dosis 800 kg/ha berat kering 9,14 kg/plot dan berat basahnya 15,08 kg/plot. Setiap tanaman perlu dipupuk dengan dosis yang sesuai agar terjadi keseimbangan unsur hara dalam tanah yang memungkinkan tanaman dapat tumbuh dan berkembang dengan baik serta menghasilkan hasil yang optimal (Maisura et al, 2019). Pada Gambar 8. menunjukan perbedaan ukuran umbi untuk hasil panen plot kontrol (tanpa pemupukan) dan plot uji.…”

Mineral fertilizers for onions: a review

“…Дефицит калия у лука выражается в появлении бурых кончиков у старых листьев и плохом формировании луковиц. Недостаток калия особенно сильно проявляется при питании растений аммонийным азотом [86,87].…”