Pertumbuhan dan Produksi Empat Varietas Padi (Oryza sativa) Melalui Pengelolaan Air dan Pemberian Pupuk Kandang Kerbau

Abstract

The research objectives were to find out the growth responses and the results of providing water treatment and manure from buffaloes to C/N which is different from the rice plant variety. The rice was planted in a pot arranged in a greenhouse. The water treatment consisted of two treatment phases, namely irrigation with interval and continuous irrigation. The provision of manure from buffaloes consisted of without treatment, with treatment of C/N 19, 80:1 and treatment of C/N 10, 15:1. The varieties studied were Inpari 1, Inpari 13, Siramos and Siboru Tambun. The results showed that water treatment had positive influence on the plant development which was significantly seen in the height of plant and the number of plantlet and panicle. The best irrigation was indicated by the irrigation with interval. The provision of manure from buffaloes had influence on the number of plantlet per cluster which was indicated very significantly by 40 HST, significantly by 20HST, and very significantly by 40 and 60 HST; and on the number of panicle per cluster which was indicated significantly by 60 HST and very significantly by 100 HST filled grains, and on the number of empty grains per cluster, indicating positive influence. The best treatment of providing manure from buffaloes was found on the treatment of C/N 10, 15.

Penelitian ini terdiri dari tiga faktor perlakuan dengan Rancangan Petak-Petak Terpisah. Perlakuan utama adalah perlakuan pemberian air yang terdiri dari dua taraf yaitu irigasi berselang dan penggenangan kontiniu. Anak petak adalah pupuk kandang kerbau yang terdiri dari tiga taraf yaitu tanpa perlakuan, C/N 19,80:1 dan C/N 10,15:1. Anak-anak petak adalah varietas yang terdiri dari Inpari 1, Inpari 13, Siramos dan Siboru Tambun. Hasil penelitian menunjukkan tinggi tanaman tertinggi pada varietas Inpari 1, Siramos dan Siboru Tambun pada perlakuan irigasi berselang. Berbeda halnya dengan Inpari 13 memperoleh tinggi tanaman tertinggi pada perlakuan penggenangan kontiniu. Keempat varietas memperoleh jumlah anakan per rumpun terbanyak pada perlakuan C/N 10,15:1. Varietas Inpari 1, Siramos dan Siboru Tambun memperoleh persentase gabah berisi per malai pada interaksi penggenangan kontiniu dan pupuk kandang kerbau C/N 10,15:1. Berbeda halnya dengan Inpari 13 memperoleh gabah berisi per rumpun terbesar pada interaksi penggenagan kontiniu dan pupuk kandang kerbau C/N 19,80. Varietas terbaik pada pengmatan tinggi tanaman, jumlah anakan per rumpun, jumlah malai per rumpun, persentase gabah berisi per malai dan panjang akar diperlihatkan oleh varietas Siboru Tambun.