THE EFFECT OF DOLOMITE AND NPK FERTILIZER APPLICATION ON GROWTH

Abstrak

This research was conducted at the UPT Benih Induk Palawija located in North Sumatra, precisely at Jl. Pendidikan No. 23, Tanjung Selamat, Sunggal District, Deli Serdang Regency, the research was conducted in the period of June--September 2023. RAK or Randomized Block Design through factorial with two treatment factors was used as the method of this research. Three levels namely: D1 = 0 g / plot (0 kg / ha), D2 = 40 g / plot (270 kg / ha), D3 = 60 g / plot (400 kg / ha), the three of them became the first factor of dolomite (D) dosage which was grouped into three levels. In addition, N1 = 30 g / plot (200 kg / ha), N2 = 45 g / plot (300 kg / ha), N3 = 60 g / plot (400 kg / ha), the three of them became the second factor of NPK Mutiara fertilizer dosage which was divided into three levels. Dolomite application, 60 g/plot produces optimal yield and growth of peanut plants, namely the weight of 100 dry seeds, plant height, pod weight per plot, flowering age, pod weight per plant, number of branches, number of filled pods per plant, number of gynophores per plant, number of empty pods per plant, and total number of pods per plant are significantly affected by dolomite application. Meanwhile, application of NPK Mutiara fertilizer with a dose of 60 g/plot shows the same thing. The combination of dolomite and NPK Mutiara fertilizer only has a significant effect on the number of gynophores per plant.