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

Elephant foot yam plants have the potential to be developed in Indonesia, planting material has an important role in the propagation and reproduction of elephant foot yam. The selection of the right organic fertilizer raw materials will have a positive effect on the growth and production of the growth of elephant foot yam plants and the environment. The research was conducted on Research Land of Centre for Roots and Tuber Study, Faculty of Agriculture Universitas Sumatera Utara and implemented August 2021 - January 2022. The study used a randomized block design with two factors. This study aims to determine the effect of the two planting materials (bulbil and tuber) and 3 types of organic fertilizer (chicken manure, goat manure, cow manure and without organic fertilize) on the growth of elephant foot yam. The results of this experiment showed that planting material had a significant effect on height of first shoot, number of leaves, and tuber weight but had no significant effect on number of bulbils. All observed parameters increased significantly with the addition of organic fertilizers. The treatment that gave the best elephant foot yam plants growth results was bulbil as a planting material and the application of chicken manure.

Section: Resultsmentioning

confidence: 94%

The effect of planting material and organic fertilizer on growth of elephant foot yam (Amorphophallus oncophyllus Prain.)

Rahmawati,

Kardhinata,

Savana

2023

“…The expansion of the sweet potato establishing region is completed by utilizing paddy fields in the dry season after the rice gather [3]. Rice straw left in paddy fields has the potential to pollute the environment.…”

Section: Introductionmentioning

confidence: 99%

Utilization of rice straw waste compost to increase growth and production of local sweet potatoes

Rahmawati

Basqoro

2022

Sweet potato is a functional food that has potential to be cultivated in paddy fields after rice harvesting. Rice straw has the potential to become waste that can pollute the environment. Efforts that can be made to overcome these problems are to use rice straw as a raw material for making compost and apply it to sweet potatoes. This study aims to determine the effect of growth and production of local sweet potato genotypes with rice straw compost. The design used in this study was a Randomized Block Design with two factors, namely local genotypes (Cengkeh Turi yellow tubers, Cengkeh Turi orange tubers, and Tanah Seribu orange tubers) and dose of rice straw compost (0, 5, 10, 15 tons/ha). The results of this study showed that the local genotypes were significantly different in vine length, tuber length and average tuber weight. The application of straw compost at various doses significantly affected the increase in vine length, tuber length and average tuber weight. The interaction of local sweet potato genotypes and rice straw compost increased tuber length. The best growth and production was obtained from the local sweet potato genotype Tanah Seribu orange tubers with 10 tons/ha of rice straw compost.

The effect of oyster mushroom baglog compost on the growth and production some local genotypes of purple sweet potato (Ipomoea batatas L.)

Prabowo

Rahmawati

Sitepu

2020

The use of compost is effective to improve the physical, biological and chemical structure of the soil, which makes plant growth and yield better. The purpose of study was to determine the effect of oyster mushroom baglog compost on the growth and production of several local purple sweet potato genotypes (accessions of Dolok Perdamean with purple tuber, accessions of Silimakuta with purple tuber, accessions of Sumbul with purple tuber, and accessions of Parbuluan with purple tuber) on the various doses of oyster mushroom baglog waste compost application (0, 10, 20, 30 ton/ha). This research was conducted at Jl. Idi Gang Eka Dewi, Medan Johor Subdistrict, from the end of December 2018 to June 2019. The results showed that the administration of oyster mushroom baglog compost gave a good influence on the growth and production of some local purple sweet potato genotypes. The accession of Sumbul with purple tuber had produces the highest growth plant stem length, while the Dolok Perdamean accession with purple tuber had produces the highest on B class tuber grading. The application of oyster mushroom baglog waste compost markedly improves on A class tuber grading. The best dose of oyster mushroom baglog waste compost was 30 tons/ha.