POTENSI AZOLLA SEBAGAI SUBSTITUSI PUPUK KANDANG PADA BUDIDAYA PADI ORGANIK

Caraka Tani: Journal of Sustainable Agriculture

Bambang Hendro Sunarminto¹  Jauhari Syamsiyah²  Mujiyo Mujiyo² 

[1] Jurusan Ilmu Tanah Fakultas Pertanian, Universitas Gadjah Mada;Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Sebelas Maret;

关键词: azolla;    nutrient uptake;    organic paddy field;    rice production;   

DOI  :  10.20961/carakatani.v31i2.11956

来源: DOAJ

【 摘 要 】

One of problems faced by farmers in the rice cultivation with organic system is organic fertilizer limited, especially for farmers who do not have livestock. Azolla is one of materials that can be used as organic fertilizer. The aim of the research was to determine whether Azolla (Azolla mycrophylla L.) is able to meet the nutrient needs of some rice varieties on organic rice cultivation. The experiment used factorial complete randomized block design with three factors and three replications. Azolla was spread at days after transplanting and at 25 days after transplanting, 75% of Azolla was incorporated into soil and the rest was left up until rice were harvested. Meanwhile, cow manure was distributed after tillage. The treatment consisted of rice varieties (Mira1, Mentik Wangi and Red and White), Azolla (0 and 2 tons / ha) and manure (0 and 10 tons / ha). The result showed that Azolla did not significantly increase growth and yield of rice, despite it could increase the  N uptake 5,4% and P uptake P 17,3% , weight of dry straw, dry grain and 1,000 seeds by 5,86%, 12.7%, 7.37% than without Azolla respectively. Azolla 2 tons/ha with manure 10 tons/ha were able to increase N uptake by 7.6%, the uptake P by 13.7% and the of productive tiller number by 9.88%. From the standpoint of crop yields with organic system, a single use of Azolla has not been able to replace manure.

【 授权许可】

Unknown