Growth and production responses of local sweet potatoes (Ipomoea batatas L.) genotypes on paddy straw biochar application in the paddy fields

International Conference on Agriculture, Environment, and Food Security 2018

农业科学;生态环境科学

Andika, M.Y.^1 ; Rahmawati, N.^1 ; Sitepu, F.E.T.^1

Faculty of Agriculture, Universitas Sumatera, Utara Padang Bulan, Medan

20155, Indonesia^1

关键词: Bio chars;    Field experiment;    Harvest index;    Ipomoea batatas;    Paddy fields;    Plant growth;    Production response;    Sweet potato;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/260/1/012152/pdf
DOI  :  10.1088/1755-1315/260/1/012152

来源: IOP

【 摘 要 】

Abstrak. Biochar application as an organic soil conditioner can increase plant growth and production, especially on suboptimal lands. This research aimed to determine the response of growth and production in some local sweet potato genotypes (Accession of Cengkeh Turi with yellow tuber flesh, Accession of Cengkeh Turi with orange tuber flesh, and Accession of Tanah Seribu with orange tuber flesh) on various doses application of paddy straw biochar (0, 5, 10, 15 tons/ha) in paddy fields. A field experiment was conducted from April to August 2018 in the paddy fields of Tandem Hilir I Village, Deli Serdang. The results of this research indicated that the local sweet potato genotype had a good growth and production response in paddy field cultivation. Accession of Tanah Seribu with orange tuber flesh had a significant effect on vine length, tuber weight per sample, and harvest index, while Accession of Cengkeh Turi with orange tuber flesh significantly affects the number of tubers per sample. Paddy straw biochar application had a significant effect on the length of vine, and tuber weight per sample. The best dose of paddy straw biochar in the paddy fields is 10 tons/ha.