Pengaruh Amandemen Tanah, Varietas dan Paclobutrazol Terhadap Pertumbuhan Dan Hasil Padi (Oryza sativa L.)
Authors: Syafiqa Lianna , Bakhtiar Bakhtiar , Ichsan Cut Nur 
Published: March 2024

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh antara amandemen tanah, varietas dan paclobutrazol terhadap pertumbuhan dan hasil tanaman padi. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial split-split plot 3 x 2 x 2 dengan 3 ulangan. Faktor pertama (amandemen tanah) sebagai petak utama yang terdiri dari 3 taraf: A1= biochar, A2= kompos, A3= campuran biochar, kompos, mikoriza, dan trichoderma. Faktor kedua (varietas) sebagai anak petak yang terdiri dari 2 taraf: V1= Inpari 42 agritan, V2= Sigupai UA 11. Faktor ketiga (konsentrasi paclobutrazol) sebagai sebagai anak-anak petak yang terdiri dari 2 taraf: P1= 500 ppm, P2= 700 ppm. Hasil penelitian menunjukkan bahwa terdapat pengaruh interaksi antara amandemen tanah dan varietas terhadap berat berangkasan basah dan berat berangkasan kering. Pertumbuhan dan hasil terbaik terdapat pada kombinasi amandemen biochar 5 tha-1 + kompos 5 tha-1 + mikoriza 10 g.pot-1 + Tricoderma spp. 20 g.pot-1 dengan varietas Sigupai UA 11. Terdapat pengaruh interaksi antara amandemen tanah dengan paclobutrazol terhadap berat berangkasan basah. Pertumbuhan dan hasil terbaik terdapat pada kombinasi amandemen kompos 10 t.ha-1 dan paclobutrazol 500 ppm. Terdapat interaksi antara varietas dan paclobutrazol terhadap berat berangkasan kering. Pertumbuhan dan hasil terbaik terdapat pada kombinasi varietas Sigupai dengan paclobutrazol konsentrasi 700 ppm. Terdapat pengaruh interaksi antara amandemen tanah, varietas dan paclobutrazol terhadap berat berangkasan basah, berat berangkasan kering dan potensi hasil. Pertumbuhan dan hasil terbaik terdapat pada kombinasi amandemen biochar 5 tha-1 + kompos 5 tha-1 + mikoriza 10 g.pot-1 + Tricoderma spp. 20 g.pot-1 dengan varietas Sigupai UA 11 pada konsentrasi paclobutrazol 700 ppm.The Effect of Soil Amendments, Varieties and Paclobutrazol on the Growth and Yield of Rice (Oryza Sativa L.)Abstract. The primary objective of this study is to assess the impact of soil amendments, various rice varieties, and paclobutrazol on the growth and yield of rice plants. The research design employed a Randomized Complete Block Design (RCBD) with a factorial split-split plot arrangement of 3 x 2 x 2 and was replicated three times. The first factor, designated as the main plot, pertains to soil amendments and consists of three levels: A1 = biochar, A2 = compost, A3 = a mixture of biochar, compost, mycorrhiza, and trichoderma. The second factor, considered as a subplot, involves rice varieties and encompasses two levels: V1 = Inpari 42 agritan, V2 = Sigupai UA 11. The third factor, also a subplot, deals with the concentration of paclobutrazol: P1 = 500 ppm, P2 = 700 ppm. The study's findings revealed significant interaction effects between soil amendments and rice varieties concerning biomass fresh weight and biomass dry weight. Optimal growth and yield were observed in the combination of biochar amendment at a rate of 5 tha-1 + compost at a rate of 5 tha-1 + mycorrhiza at 10 g.pot-1 + Tricoderma spp. at 20 g.pot-1, specifically when using the Sigupai UA 11 variety. Additionally, an interaction effect was identified between soil amendments and paclobutrazol on biomass fresh weight, with the most favorable outcomes occurring when employing 10 t.ha-1 of compost amendment and 500 ppm of paclobutrazol. The research also identified interactions between rice varieties and paclobutrazol on biomass dry weight, with the Sigupai variety achieving optimal growth and yield at a paclobutrazol concentration of 700 ppm. Overall, the study highlighted the significance of the combined impact of soil amendments, rice varieties, and paclobutrazol on biomass fresh weight, biomass dry weight, and yield potential, with the most promising results occurring when utilizing biochar amendment at a rate of 5 tha-1 + compost at a rate of 5 tha-1 + mycorrhiza at 10 g.pot-1 + Tricoderma spp. at 20 g.pot-1, along with the Sigupai UA 11 variety at a paclobutrazol concentration of 700 ppm.