Pengaruh Biochar SP 50 yang Dimodifikasi dan Plant Growth Promoting Rhizobacteria (PGPR) Terhadap Pertumbuhan dan Produksi Jagung Manis (Zea mays saccharata Sturt)

Abstract

Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan produksi tanaman jagung manis terhadap pemberian biochar SP-50 yang di modifikasi dan plant growth promoting rhizobacteria (PGPR). Rancangan yang digunakan yaitu RAK Faktorial yang terdiri dari 2 faktor perlakuan yaitu: (1) Biochar SP-50 (B) terdiri dari 3 taraf, B0= Tanpa Biochar, B1= Dosis 10 ton/ha, B2= dosis 20 ton/ha. (2) PGPR (P) terdiri dari 4 taraf, perlakuan P0= Tanpa PGPR, P1= PGPR konsentrasi 1%, P2= PGPR konsentrasi 2%, P3= PGPR konsentrasi 3%. Hasil dari penelitian ini menunjukkan bahwa pemberian Biochar SP-50 berpengaruh nyata terhadap diameter batang, jumlah daun, berat tongkol dengan klobot per plot, berat tongkol tanpa klobot per plot, dan berpengaruh sangat nyata terhadap jumlah baris biji. Perlakuan terbaik yaitu pemberian biochar SP-50 sebanyak 20 ton/ha. Pemberian PGPR tidak berpengaruh nyata terhadap pertumbuhan dan produksi tanaman jagung manis namun memberikan pengaruh positif dengan konsentrasi terbaik 1% dan 3%. Kombinasi Biochar SP-50 dan PGPR memberikan pengaruh nyata terhadap tinggi tanaman, berat tongkol dengan klobot per sampel dan berat tongkol tanpa klobot per sampel. Perlakuan terbaik yaitu pemberian Biochar SP- 50 dengan dosis 20 ton/ha dan PGPR konsentrasi 3%. This study aims to determine the response of growth and production of sweet corn plants to the application of modified SP-50 biochar and plant growth promoting rhizobacteria (PGPR). The design used was Factorial RAK which consisted of 2 treatment factors, namely: (1) Biochar SP-50 (B) consisted of 3 levels, B0 = Without Biochar, B1 = Dose 10 tons/ha, B2 = dose 20 tons/ha. (2) PGPR (P) consists of 4 levels, treatment P0 = No PGPR, P1 = PGPR concentration of 1%, P2 = PGPR concentration of 2%, P3 = PGPR concentration of 3%. The results of this study showed that the application of Biochar SP-50 had a significant effect on stem diameter, number of leaves, weight of cobs with cocob per plot, weight of cobs without cob per plot, and a very significant effect on the number of seed rows. The best treatment is giving SP-50 biochar as much as 20 tons/ha. The provision of PGPR did not significantly affect the growth and production of sweet corn plants but gave a positive effect with the best concentrations of 1% and 3%. The combination of Biochar SP-50 and PGPR had a significant effect on plant height, cob weight with cob per sample and cob weight without cob per sample. The best treatment was giving Biochar SP-50 at a dose of 20 tons/ha and PGPR with a concentration of 3%.