Application of Azolla and intermittent irrigation to improve the productivity and nutrient contents of local black rice variety

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Sulandjari^1,2 ; Yunindanova, M.B.^1

Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta, Indonesia^1

Biotechnology and Biodiversity Research Center, Universitas Sebelas Maret, Surakarta, Indonesia^2

关键词: Anthocyanin pigment;    Cholesterol levels;    Growth and yield;    Intermittent irrigations;    Nutrient contents;    Plant material;    Rice cultivation;    System of rice intensifications;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012032/pdf
DOI  :  10.1088/1755-1315/142/1/012032

来源: IOP

【 摘 要 】

Black rice is a local rice variety that contains a high level of anthocyanin pigment. Anthocyanin has been reported to be very effective in reducing cholesterol levels as well as cancer cell invasion. One of the main problems in rice cultivation is lack of water. System of Rice Intensification (SRI) has shown to be able to increase rice productivity by increasing the number of tillers. This system is known as a water-efficient cultivation. Other rice cultivation barrier is related to the use of nitrogen fertilizer. One of replacement of nitrogen fertilizer is by adding azolla. The objective of this research was identifying growth and yield of organic black rice with intermittent irrigation and application of azolla. The plant material used was black rice Cempo variety from Sleman, Yogyakarta. This experiment utilized 4 dosages of azolla as the first treatment: 100 gm-2, 200 gm-2and 400 gm-2. The second treatment was water supply consisted of continuous flooded 2 cm; flooded 2 cm every 3 days; flooded 2 cm every 6 days. The results depicted that the application of azolla was able to increase the growth of black rice. Azolla of 200 gm-2and 400 gm-2and intermittent 3 days to 6 days generated higher dry grain, anthocyanin and antioxidant. Azolla 200 gm-2with intermittent irrigation 3 days could be a good combination to improve plant growth, yield and properties of local black rice.