Substitusi Kebutuhan Nitrogen Tanaman Padi Sawah oleh Tumbuhan Air Azolla (Azolla pinnata)
Abstract:The research aims to
study the ability of Azolla pinata in substituting nitrogen requirement of rice
plants at a low dose of urea fertilizer. Factorial experiment arranged in
randomized complete design (RCD) with four combinations of treatments and 6
replications. The first factor is the dose of urea with 2 dose level, ie,
without urea (U0) and 100 kg urea ha-1 (U1). As a second factor is the
provision of water plant Azolla pinnata with a degree without Azolla (A0) and
Azolla 100 g m-2 (A1). The experimental results show that: (1) water plant
azolla increased height, dry weight, productive tillers and dry weight of paddy
rice crops, (2) Provision of a Urea increase high, dry weight, productive
tillers and grain dry weight of rice plants, and (3) water plants azolla
interacts with urea in increasing plant dry weight and grain dry weight of
paddy.
Keywords: Nitrogen, Rice,
Azolla pinnata
Penulis: Iwan Gunawan, Raida
Kartika
Kode Jurnal: jppertaniandd120068
