Pengaruh Aplikasi Pupuk Organik Hayati Yang Dikombinasikan Dengan Kompos Dan Biochar Terhadap Aktivitas Mikroorganisme Tanah Pada Tanaman Padi Gogo (Oryza Sativa L.)

Nugraha, Oryzea Fachmi (2019) Pengaruh Aplikasi Pupuk Organik Hayati Yang Dikombinasikan Dengan Kompos Dan Biochar Terhadap Aktivitas Mikroorganisme Tanah Pada Tanaman Padi Gogo (Oryza Sativa L.). Sarjana thesis, Universitas Brawijaya.

Abstract

Tanah merupakan salah satu komponen sumber daya alam yang berperan penting dalam sektor pertanian. Aplikasi pupuk organik hayati (POH) merupakan salah satu cara untuk meningkatkan kesuburan tanah karena mengandung rizobakter pengatur tumbuh tanaman (RPTT) yang mampu mengubah senyawa organik menjadi senyawa anorganik yang tersedia bagi tanaman serta dapat meningkatkan kualitas tanah. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh pupuk organik hayati (POH) yang dikombinasikan dengan kompos dan biochar terhadap aktivitas mikroorganisme tanah dan pertumbuhan tanaman padi gogo (Oryza sativa L.). Penelitian dilaksanakan di Laboratorium Mikrobiologi Pertanian dan di greenhouse Mikrobiologi Pertanian, Pusat Penelitian Biologi, Lembaga Ilmu Pengetahuan Indonesia (LIPI) Cibinong, Bogor dengan menggunakan Rancangan Acak Lengkap (RAL). Perlakuan yang diterapkan diantaranya tanah (K), tanah + pupuk anorganik (NPK), tanah + kompos (Ks), tanah + kompos + biochar (KsB), tanah + kompos + biochar + formula POH 1 (KsB F1), tanah + kompos + biochar + formula POH 2 (KsB F2), tanah + kompos + biochar + fomula POH Komersial 1 (KsB POH), tanah + kompos + biochar + POH Komersial 1 (KsB POH), tanah + kompos + biochar + POH Komersial 2 (KsB POHK). Parameter yang diamati meliputi total populasi bakteri, populasi bakteri pelarut fosfat, respirasi mikroorganisme tanah, pH tanah, C-organik tanah, aktivitas enzim fosfomonoeserase (PME-ase), aktivitas enzim urease, tinggi tanaman, jumlah daun, jumlah anakan, kandungan klorofil daun, bobot basah tanaman, bobot kering tanaman, dan jumlah bulir padi. Hasil penelitian menunjukkan bahwa kombinasi perlakuan kompos + biochar + POH berpengaruh nyata terhadap aktivitas mikroorganisme tanah dan pertumbuhan tanaman padi gogo. Perlakuan KsB F2 memberikan pengaruh nyata yang paling signifikan terhadap aktivitas mikroorganisme tanah. Perlakuan KsB F2 meningkatkan aktivitas enzim fosfomonoesterase sebesar 52,65% dan meningkatkan aktivitas enzim urease sebesar 127% terhadap perlakuan K. Hal ini dapat terjadi karena kompos menyediakan bahan organik bagi mikroorganisme tanah dan biochar mampu menyediakan habitat yang sesuai bagi mikroorganisme tanah untuk tumbuh. Perlakuan KsB F1 memberikan pengaruh nyata terhadap pertumbuhan tanaman padi. Terlihat pada komponen produksi tanaman, perlakuan KsB F1 meningkatkan jumlah bulir padi sebesar 62% dibandingkan dengan perlakuan K, tetapi tidak menunjukkan beda nyata dengan perlakuan KsB F1 dan KsB FS. Perlakuan KsB F1 juga memberikan pengaruh nyata terhadap bobot basah dan bobot kering 1000 bulir padi. Perlakuan KsB F1 mampu meningkatkan bobot basah sebesar 48,8% dan meningkatkan bobot kering sebesar 56,8% dibandingkan dengan perlakuan kontrol, serta menunjukkan beda nyata dengan perlakuan KsB F2 dan KsB FS

English Abstract

Soil is one component of natural resources that plays an important role in the agricultural sector. Production in the agricultural sector can increase if the land is managed appropriately so that it can provide nutrients for plants. The application of biological organic fertilizer is one way to increase soil fertility because it contains plant growth regulating rhizobacter (PGPR) which is able to convert organic compounds into inorganic compounds available for upland rice plants and can improve soil quality. The purpose of this research was to determine the effect of biological organic fertilizer combined with compost and biochar on the activity of soil microorganisms and growth of upland rice plants (Oryza sativa L.) The research was carried out in the Agricultural Microbiology Laboratory and in the greenhouse of Agricultural Microbiology, Biology Research Center, Indonesian Institute of Sciences (LIPI), Bogor using a completely randomized design (RAL). The treatment uses different types of fertilizers including soil (K), soil + inorganic fertilizer (NPK), soil + compost (Ks), soil + compost + biochar (KsB), soil + compost + biochar + biological organic fertilizer formula 1 (KsB F1), soil + compost + biochar + biological organic fertilizer formula 2 (KsB F2), soil + compost + biochar + Commercial biological organic fertilizer fomula 1 (KsB POH), soil + compost + biochar + Commercial biological organic fertilizer 1 (KsB POH), soil + compost + biochar + Commercial biological organic fertilizer 2 (KsB POHK). The parameters observed included total bacterial population, phosphate solvent bacterial population, soil microorganism respiration, soil pH, soil organic C, phosphomonoeserase enzyme activity (PME-ase), urease enzyme activity, plant height, number of leaves, number of tillers, leaf chlorophyll content , plant wet weight, plant dry weight, and number of rice grains. The results showed that the combination of compost + biochar + biological organic fertilizer treatment had a significant effect on soil microorganism activity and upland rice growth. The treatment of KsB F2 gave the most significant real influence on soil microorganism activity. The treatment of KsB F2 increases the phosphomonoesterase enzyme activity by 52.65% and increases the enzyme activity of urease by 127% against K treatment. This can occur because compost provides organic material for soil microorganisms and biochar is able to provide suitable habitat for soil microorganisms to grow. The treatment of KsB F1 has a significant influence on the growth of upland rice plants. Seen in the components of plant production, treatment of KsB F1 increased the amount of rice grains by 62% compared to treatment K, but did not show a significant difference with the treatment of KsB F1 and KsB FS. The treatment of KsB F1 also had a significant effect on wet weight and dry weight of 1000 rice grains. The KsB F1 treatment was able to increase wet weight by 48.8% and increase dry weight by 56.8% compared to the control treatment, and showed a significant difference with the treatment of KsB F2 and KsB FS.

Item Type: Thesis (Sarjana)
Identification Number: SKR/FP/2019/252/051906995
Subjects: 600 Technology (Applied sciences) > 633 Field and plantation crops > 633.1 Cereals > 633.18 Rice
Divisions: Fakultas Pertanian > Ilmu Tanah
Depositing User: Nur Cholis
Date Deposited: 10 Aug 2020 06:39
Last Modified: 22 Oct 2021 03:07
URI: http://repository.ub.ac.id/id/eprint/172978
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