Dwisaksono., Rifandy and Dr.Lenny Sri Nopriani, SP.,MP (2023) Pengaruh Aplikasi Pupuk Organik Cair dan Pupuk Anorganik Terhadap Efisiensi Serapan Hara, Pertumbuhan, dan Produksi Tanaman Padi (Oryza Sativa L.). Sarjana thesis, Universitas Brawijaya.
Abstract
Salah satu komoditas utama yang menjadi makanan pokok bagi masyarakat Indonesia yaitu beras. Akan tetapi, hal itu tidak selaras dengan upaya peningkatan produksi beras sehingga yang terjadi malah sebaliknya yaitu penurunan produksi beras. Pupuk anorganik yang digunakan secara berlebihan menjadi penyebab penurunan produksi beras. Degradasi lahan adalah salah satu bentuk dampak negatif penggunaan pupuk anorganik secara berlebihan. Oleh karena itu, degradasi menyebabkan keseimbangan hara tanah terganggu sehingga menyebabkan perkembangan serta produksi tanaman tidak optimal. Pupuk organik cair, yang mampu menyuburkan tanah kembali, tidak digunakan untuk mengganti pupuk anorganik melainkan mensubsidi pupuk anorganik agar tidak digunakan secara berlebihan. Penelitian ini dilakukan di Kebun Percobaan Jatimulyo dengan menggunakan rancangan penelitian RAK (Rancangan Acak Kelompok). dengan perlakuan sebanyak 9 perlakuan dengan 3 kali ulangan. Adapun parameter yang diteliti pada penelitian kali ini meliputi parameter sifat kimia tanah yaitu, pH, Eh, C organik, N total, P tersedia, K-dd, dan KTK. Untuk parameter serapan hara meliputi Serapan N, P, dan K tanaman. Parameter produksi dan pertumbuhan meliputi panjang tanaman, jumlah daun, jumlah anakan, jumlah anakan produktif, serta berat gabah kering per rumpun Pemupukan dilakukan pada 4 termin yaitu awal penanaman, 10 HST, 25 HST, dan 35 HST. Sampel tanah diambil sebanyak 2 kali yaitu pada 0 HST dan 123 HST. Analisis sampel tanah dilakukan di Laboratorium Kimia Tanah Fakultas Pertanian Universitas Brawijaya. Analisis data dilakukan dengan menggunakan software Genstat 12th edition. Uji lanjut menggunakan uji DMRT (Duncan). Berdasarkan hasil analisis sidik ragam, pengaruh nyata diperlihatkan pada KTK tanah dimana perlakuan 75% pupuk anorganik + 150% pupuk organik cair berbeda nyata terhadap perlakuan 100% pupuk anorganik dan 100% pupuk organik cair , namun tidak terdapat pengaruh nyata terhadap parameter pH tanah, potensial redoks tanah, C-organik tanah, N-total tanah, P-tersedia tanah, serta K-dd tanah. Sedangkan pada parameter serapan hara, pengaruh nyata hanya terdapat pada parameter serapan N saja dimana perlakuan 75% pupuk anorganik + 100% pupuk organik cair berbeda nyata terhadap perlakuan 100% pupuk anorganik dan 100% pupuk organik cair. Parameter panjang tanaman menunjukkan pengaruh nyata pada umur pengamatan 6 MST dan 8 MST, jumlah daun pada umur pengamatan 8 MST, jumlah anakan pada umur pengamatan 2 MST dan 6 MST. Pada parameter produksi pengaruh nyata hanya terdapat pada berat gabah kering per rumpun dimana perlakuan 75% pupuk anorganik + 200% pupuk organik cair memiliki beda nyata terhadap perlakuan 100% pupuk organik cair. Efisiensi serapan hara N, P, K tertinggi ditunjukkan pada perlakuan 75% Pupuk Anorganik + 100% Pupuk Organik Cair dengan nilai berturut turut yaitu 78,49%, 58,97%, dan 34,66%.
English Abstract
Rice is a basic commodity that the Indonesian population relies on as a staple food. However, this contradicted the efforts to increase rice production, leading to a decrease in rice production instead. The decrease in rice output can be ascribed to the excessive use of synthetic fertilizers. The overuse of inorganic fertilizers results in land degradation, which is a harmful outcome. Consequently, the deterioration of the soil causes a disruption in the accessibility of nutrients, leading to inadequate plant development and output. Liquid organic fertilizer functions as a complement to inorganic fertilizer, rather than as a substitute, in order to prevent excessive use of inorganic fertilizer while also replenishing the soil's nutrients. The Jatimulyo Experimental Garden served as the research site for this study, which used a RGD (Randomized Group Design) research design with three sets of nine treatments. This study looked at a number of soil chemical property measures, including pH, Eh, organic C, total N, accessible P, K-dd, and CEC. Plant N, P, and K uptake are example of nutrient uptake metrics. Plant length, number of leaves, number of tillers, number of productive tillers, and dry grain weight per hill are examples of growth and production characteristics. There are four times that fertilization is done: at planting time, at 10 DAP, at 25 DAP, and at 35 DAP. Two separate soil samples were collected: at 0 DAP and 123 DAP. The Soil Chemistry Laboratory at Brawijaya University’s Faculty of Agriculture conducted the analysis of soil samples. The software package Genstat, 12th edition, was used for data analysis. Use the DMRT (Duncan) test to assess the impact between treatments. The analysis of variance revealed a significant impact on the Cation Exchange Capacity (CEC) of the soil. Specifically, the treatment involving 75% inorganic fertilizer + 150% liquid organic fertilizer showed a significant difference compared to the treatments involving 100% inorganic fertilizer and 100% liquid organic fertilizer. However, no significant impact was observed on soil pH, potential soil redox, soil organic carbon (C), soil total nitrogen (N), soil available phosphorus (P), and soil potassium (K). Regarding the nutrient absorption parameter, the only significant impact was observed on the N uptake parameter. Specifically, the treatment including 75% inorganic fertilizer combined with 100% liquid organic fertilizer showed a significant distinction compared to the treatments involving 100% inorganic fertilizer and 100% liquid organic fertilizer. The plant length parameter had a significant impact at the observation ages of 6 WAP and 8 WAP. Additionally, the number of leaves had a significant impact at the observation age of 8 WAP, while the number of tillers had a significant impact at the observation ages of 2 WAP and 6 WAP. The only production parameter that was significantly affected was the weight of dry grain per hill. The treatment of 75% inorganic fertilizer + 200% liquid organic fertilizer showed a significant difference compared to the treatment of 100% liquid organic fertilizer. The treatment 75% Inorganic Fertilizer + 100% Liquid Organic Fertilizer had the highest efficiency in nutrient uptake, specifically for N, P, and K, with values of 78.49%, 58.97%, and 34.66% respectively.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0523040385 |
| Divisions: | Fakultas Pertanian > Ilmu Tanah |
| Depositing User: | Unnamed user with username nova |
| Date Deposited: | 25 Mar 2024 03:31 |
| Last Modified: | 25 Mar 2024 03:32 |
| URI: | http://repository.ub.ac.id/id/eprint/217537 |
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