Distribusi pori ultisol dan hasil kedelai akibat pemberian kompos kotoran sapi dan gamal

Nurmalasari, Rafita (2023) Distribusi pori ultisol dan hasil kedelai akibat pemberian kompos kotoran sapi dan gamal. S1 thesis, Universitas Jambi.

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Abstract

Ultisol mempunyai potensi yang cukup besar dalam pengembangan budidayapertanian, akan tetapi dalam pengelolaannya Ultisol menghadapi kendala baik fisik, kimia maupun biologi. Kendala sifat fisik pada Ultisol adalah kemantapan agregat yang rendah, permeabilitas yang lambat, dan daya pegang air yang rendah, sehingga sebagian air yang ada di dalam tanah tidak tersedia bagi tanaman yang tumbuh diatas tanah, sedangkan air sangat diperlukan bagi tanaman untuk pertumbuhannya. Permasalahan Ultisol sendiri yang terdapat pada sifat fisik yang tidak mendukung pertumbuhan tanaman secara optimal. Yulnafatmawita et al. (2014), melaporkan bahwa Ultisol mempunyai kandungan liat yang tinggi (>70%). Upaya yang dapat dilakukan untuk mengatasi masalah pada Ultisol, khususnya untuk meningkatkan porositas tanah salah satunya adalah dengan penambahan bahan organik. Penelitian ini dilaksanakan di Desa Tangkit Lama, Kecamatan Sungai Gelam, Kabupaten Muaro Jambi, Provinsi Jambi. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 5 perlakuan dan 5 ulangan, sehingga terdapat 25 petakan dengan ukuran 3 m x 2 m dengan jarak tanam 30 x 25 cm. Adapun perlakuan yang diberikan dalam penelitian ini, yaitu K0 = Tanpa Pemberian Kompos (Kontrol), K1 = 5 ton/ha kompos kotoran sapi dan gamal, K2 = 10 ton/ha kompos kotoran sapi dan gamal, K3 = 15 ton/ha kompos kotoran sapi dan gamal, K4 = 20 ton/ha kompos kotoran sapi dan gamal. Parameter yang diamati yaitu C-organik tanah (%), bobot volume tanah (g/cm3), total ruang pori tanah (%), pori air tersedia, pori drainase lambat, pori drainase cepat, pengamatan kompos, tinggi tanaman (cm) dan hasil biji kering kedelai (kg/petak). Data yang diperoleh dianalisis menggunakan sidik ragam untuk melihat pengaruh rata-rata perlakuan dilanjutkan menggunakan uji Duncan Multiple Range Test (DMRT) pada taraf 5%. hasil penelitian menunjukkan pemberian kompos kotoran sapi dan gamal dengan dosis 5 sampai 20 ton/habelum nyata meningkatkan total ruang pori, pori air tersedia, pori drainase cepat dan belum nyata meningkatkan tinggi tanaman dan hasil kedelai. otential in the development of agricultural cultivation, however, in its management, Ultisol faces physical, chemical and biological constraints. Constraints to the physical properties of Ultisols are low aggregate stability, slow permeability, and low water holding capacity, so that some of the water in the soil is not available for plants growing on the ground, while water is necessary for plants for their growth. Ultisol's own problems are found in physical properties that do not support optimal plant growth. Yulnafatmawita et al. (2014), reported that Ultisol has a high clay content (> 70%). Efforts that can be made to overcome problems with Ultisols, especially to increase soil porosity, one of which is the addition of organic matter. This research was conducted in Tangkit Lama Village, Sungai Gelam District, Muaro Jambi Regency, Jambi Province. The study used a randomized block design (RBD) with 5 treatments and 5 replications, so there were 25 plots with a size of 3 m x 2 m with a spacing of 30 x 25 cm. The treatments given in this study were K0 = without composting (control), K1 = 5 tons/ha of cow manure and gamal compost, K2 = 10 tons/ha of cow manure and gamal compost, K3 = 15 tons/ha of manure compost cow and gamal, K4 = 20 tonnes/ha of cow manure and gamal compost. Parameters observed were C-organic soil (%), soil volume weight (g/cm3), total soil pore space (%), available water pores, slow pore drainage, fast pore drainage, observation of compost, plant height (cm) and soybean dry seed yield (kg/plot). The data obtained were analyzed using variance to see the effect of the average treatment continued using the Duncan Multiple Range Test (DMRT) at the 5% level. The results showed that applying cow dung and gamal compost at a dose of 5 to 20 tons/habelum significantly increased total pore space, available pore water, fast pore drainage and did not significantly increase plant height and soybean yield.

Type:	Thesis (S1)
Uncontrolled Keywords:	Ultisol, Compost, Pore Distribution
Subjects:	L Education > L Education (General)
Divisions:	Fakultas Pertanian > Agroekoteknologi
Depositing User:	NURMALASARI
Date Deposited:	14 Jul 2023 02:54
Last Modified:	14 Jul 2023 02:54
URI:	https://repository.unja.ac.id/id/eprint/53152

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