Putra, Danu Dwi and Dr. Ir. Yulia Nuraini and Nina Dwi Lestari (2023) Pengaruh Penggunaan Pupuk Organik Cair Berteknologi Nano Diperkaya Mikroba terhadap Populasi Bakteri Pelarut Fosfat dan Pertumbuhan Tanaman Tomat (Solanum lycopersicum L.) pada Inceptisol. Sarjana thesis, Universitas Brawijaya.
Abstract
Jenis tanah yang memiliki sebaran cukup luas dan merupakan tanah pertanian utama di Indonesia adalah Inceptisol dengan luas sekitar 70,52 juta ha atau sebesar 37,5% dari luas daratan Indonesia. Kebanyakan Inceptisol yang ada di Indonesia pada tanah pertanian memiliki intensitas pengelolaan yang tinggi seperti penggunaan pupuk anorganik dalam jumlah yang berlebihan sehingga menyebabkan terjadinya penurunan kualitas tanah. Unsur hara yang esensial pada tanah dan diperlukan oleh tanaman tomat adalah unsur fosfat (P). Ketersediaan P di dalam tanah dapat ditingkatkan melalui aktivitas bakteri pelarut fosfat. Pengoptimalan peran bakteri pelarut fosfat dapat dilakukan melalui bantuan nanoteknologi pada pupuk organik cair. Tujuan dari penelitian ini yaitu: (1) mengetahui hubungan penggunaan pupuk organik cair berteknologi nano diperkaya mikroba terhadap populasi bakteri pelarut fosfat pada Inceptisol, (2) Menganalisis pengaruh antara populasi bakteri pelarut fosfat terhadap serapan P dan pertumbuhan tanaman tomat pada Inceptisol. Penelitian dilakukan pada bulan April - Oktober 2022 di greenhouse Venus Orchid, Kecamatan Dau Kabupaten Malang. Metode yang digunakan dalam penelitian ini yaitu Rancangan Acak Lengkap (RAL) dengan 5 perlakuaan dan 4 kali ulangan. Perlakukan penelitian antara lain P0 (Kontrol); P1 (Pupuk Anorganik); P2 (POC 6 ml/10 kg tanah); P3 (POC 20 ml/10 kg tanah); P4 (POC 30 ml/10 kg tanah). Pupuk Anorganik diberikan yaitu NPK 5 g/10 kg tanah. Parameter pengamatan berupa pH H2O, C-organik (%), P-Tersedia (ppm), populasi Bakteri pelarut P (cfu g-1), tinggi tanaman (cm), jumlah daun (Helai), diameter batang, (cm), jumlah bunga, serapan P (g/Tanaman). Data pengamatan yang diperoleh dilakukan analisis sidik ragam taraf 5%, uji DMRT 5%, uji korelasi (r), dan uji regresi (R2). Hasil penelitian menunjukkan pemberian pupuk organik cair berteknologi nano diperkaya mikroba dapat memberikan pengaruh nyata terhadap populasi bakteri pelarut fosfat. Perlakuan P3 (20 ml/ 10 kg tanah) menunjukkan hasil tertinggi sebesar 8.91 x105 cfu g-1 atau dapat meningkatkan hingga 44,7 % terhadap kontrol. Perlakuan P3 juga merupakan perlakuan terbaik dibandingkan dengan perlakuan P2 (Anorganik) dengan selisih persentase peningkatan terhadap kontrol sebesar 21,8%. Populasi bakteri pelarut fosfat berpengaruh positif terhadap serapan P tanaman dengan nilai korelasi r = 0,87 dan nilai koefisien determinasi R2 = 73,98 %.
English Abstract
The type of soil that has a wide distribution and is the main agricultural land in Indonesia is Inceptisol with an area of about 70.52 million ha or 37.5% of the land area of Indonesia. Most of the Inceptisols in Indonesia in agricultural land have high management intensity such as the use of inorganic fertilizers in excessive amounts causing a decrease in soil quality. The essential nutrient element in the soil needed by tomato plants is phosphate (P) element. The availability of P in the soil can be increased through the activity of phosphate-solubilizing bacteria. Optimization of the role of phosphate-solubilizing bacteria can be done with the help of nanotechnology in liquid organic fertilizers. The purpose of this study is: (1) to determine the relationship between the use of nano-technology-enriched liquid organic fertilizers with microbial populations of phosphate-solubilizing bacteria in Inceptisol, (2) to analyze the effect of phosphate-solubilizing bacteria populations on P uptake and tomato plant growth in Inceptisol. The research was conducted from April to October 2022 in the Venus Orchid greenhouse, Dau District, Malang Regency. The method used in this research was a Completely Randomized Design (CRD) with 5 treatments and 4 replications. The research treatments were P0 (Control); P1 (Inorganic Fertilizer); P2 (POC 6 ml/10 kg soil); P3 (POC 20 ml/10 kg soil); P4 (POC 30 ml/10 kg soil). Inorganic fertilizer was given, namely NPK 5 g/10 kg soil. The observation parameters were pH H2O, C-organic (%), Available P (ppm), Phosphate Solubilizing Bacteria population (cfu g-1), plant height (cm), number of leaves (Sheets), stem diameter (cm), number of flowers, P uptake (g/Plant). The observation data obtained were analyzed using the 5% level of variance test, 5% DMRT test, correlation test (r), and regression test (R2). The research results showed that the application of liquid organic fertilizer with nanotechnology enriched with microbes can have a significant effect on the population of phosphate-solubilizing bacteria. Treatment P3 (20 ml/10 kg of soil) showed the highest result of 8.91 x 105 cfu g-1 or can increase up to 44.7% compared to the control. Treatment P3 was also the best treatment compared to treatment P2 (Inorganic) with a difference in percentage increase to the control of 21.8%. The population of phosphate-solubilizing bacteria had a positive effect on P uptake by plants with a correlation value of r = 0.87 and a coefficient of determination of R2 = 73.98%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0523040037 |
| Subjects: | 600 Technology (Applied sciences) > 631 Specific techniques; apparatus, equipment materials > 631.4 Soil science |
| Divisions: | Fakultas Pertanian > Ilmu Tanah |
| Depositing User: | Nur Cholis |
| Date Deposited: | 05 Jun 2023 04:05 |
| Last Modified: | 05 Jun 2023 04:05 |
| URI: | http://repository.ub.ac.id/id/eprint/200708 |
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