RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS TANAMAN JAGUNG TERHADAP PEMBERIAN PUPUK N DAN K

Abdurrahman Abdurrahman Pandia1, Mbue Kata Bangun, Hasmawi Hasyim

Abstract


The use of Central Composite Rotatable Design (CCRD) to determine the response surface
yield at maize not yet a lot of checked, for that an research have been conducted in UPT BBI
Tanjung Selamat, Regency of Deli Serdang, Province of North Sumatra with the land height ± 25 m
above sea level, at May 2012 - August 2012.The design was used is randomized block design with
two factors, the first factor is two varieties (Bisma and SHS-4) and the second factor is fertilizer
NK (the dose of NK determined from CCRD). Parameters measured were: plant height, the number
of leaf, the number of leaf above cob, the time of tasselling, the time of silking, the time of
harvesting, the rate seed filling, cob lenght, cob diameter, the number of lines per cob, the number
of seeds per cob, weight of 100 seeds and production of dry seeds. The results showed that the
varieties significantly on plant height, the number of leafs, the time of harvesting and dry seeds
production. Fertilizer sigificantly on production of dry seeds. Interaction of varieties and fertilizer
NK significantly on production of dry seeds.

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Program studi Agroteknologi

Fakultas Pertanian

Jl. Prof. A. Sofyan no. 3

Kampus Universitas Sumatera Utara

Padang Bulan- 20155

Medan-Sumatera Utara

E ISSN (2337-6597)