PENGARUH UKURAN LUBANG TANAM TERHADAP PERTUMBUHAN MALAPARI (Pongamia pinnata (L.) Pierre) DI LAPANGAN

Gebriel Napitupulu, Nico (2021) PENGARUH UKURAN LUBANG TANAM TERHADAP PERTUMBUHAN MALAPARI (Pongamia pinnata (L.) Pierre) DI LAPANGAN. S1 thesis, Universitas Jambi.

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Abstract

Malapari is a pioneer plant in its distribution living on sandy beaches, suitable for rehabilitation on marginal lands or nutrient-poor soils, one of which is in the Jambi area where there are many Ultisols (old soils). The problems encountered by ultisol soils are low base saturation, high Al saturation, low cation exchange capacity and very low NPK content. Ultisol soils are characterized by very acidic soil reactions (pH 4 – 4.8). The organic matter content of the top layer is thin (8-12 cm), generally low to moderate. The C/N ratio is low (5 – 10). In addition to having low nutrient chemical properties, ultisol soils have hard soil physical properties. Hard soils tend to be difficult for roots to develop. Problems on land that are physically hard (Ultisol), then one way that can be done is to improve the planting media, namely by making larger planting holes. Making planting holes is intended to make it easier for plant roots to penetrate the soil, roots grow well, and continue to grow lengthwise to a further place in the soil to make it easier for roots to take up nutrients and water so as to increase plant growth and percentage of life. This research will be carried out at the Forest Education and Nursery Laboratory, Faculty of Forestry, Jambi University, which is located in Mendalo Indah Village, Jambi District, Outer City, Muaro Jambi Regency. This research was conducted for ± 2 months starting from April to May 2021. This study aims to study the effect of planting hole size on the growth of malapari plants. Method The design used in this study was a randomized block design (RAK) with one factor, namely the size of the planting hole, which consisted of 4 treatments. Based on the results of the study, it can be concluded that, the size of the planting hole had a significant effect on height, diameter, number of leaves, root dry weight, and canopy dry weight. The best treatment was found in the treatment with a hole size of 40 cm x 40 cm x 40 cm (P3) and there was a tendency that the higher the size of the planting hole, the faster the growth of the malapari plant.

Type:	Thesis (S1)
Subjects:	L Education > L Education (General)
Divisions:	Fakultas Pertanian > Kehutanan
Depositing User:	NAPITUPULU
Date Deposited:	29 Sep 2021 02:08
Last Modified:	29 Sep 2021 02:08
URI:	https://repository.unja.ac.id/id/eprint/26841

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