Irawan, Dwi Bagus (2018) Apakah Aplikasi Pupuk Anorganik Pk 52-34 Dapat Meningkatkan Perkembangan Perakaran Dan Produktivitas Tanaman Jagung? Sarjana thesis, Universitas Brawijaya.
Abstract
Produksi jagung di Indonesia belum dapat memenuhi kebutuhan nasional, diantaranya rendahnya produktivitas (berkisar antara 4-5 ton ha-1) luas area pertanaman relatif sempit karena kalah bersaing dengan komoditas ekonomis lainnya. Secara umum keberagaman produktivitas jagung antar wilayah di Indonesia dan antar petani disebabkan oleh perbedaan penerapan teknologi budidaya yang mencakup penggunaan benih unggul, pupuk, dan pengelolaan air. Jagung memiliki potensi yang sangat besar untuk dikembangkan di daerah tropis dan dapat mencapai hasil hingga 7,5 ton ha-1 apabila tanaman dikelola dengan baik. Tujuan dari kegiatan penelitian ini adalah untuk mengetahui pengaruh dosis pupuk P dan K 52-34 yang berbeda terhadap pertumbuhan dan produksi tanaman jagung dan untuk mengetahui total panjang akar dan berat akar akibat pemberian pupuk anorganik PK 52-34. Penelitian dilaksanakan pada lahan sawah musim tanam ke-2 dengan pengolahan lahan zero tillage dengan menggunakan Rancangan Acak Kelompok (RAK). Perlakuan menggunakan kombinasi pupuk anorganik berbeda dosis diantaranya (N0P0K0) kontrol, (N1P0K0) dosis rekomendasi urea 400 kg ha-1, (N1P1K1) dosis PK 52-34 100 kg ha-1 + Urea 400 kg ha-1, (N1P2K2) dosis PK 52-34 150 kg ha-1 + Urea 400 kg ha-1, (N1P3K3) dosis PK 52-34 200 kg ha-1 + Urea 400 kg ha-1, (N1P4K4)dosis PK 52-34 250 kg ha-1 + Urea 400 kg ha-1, (N1P5K5) dosis dosis KCl 85 kg ha-1, SP-36 215 kg ha-1+ Urea 400 kg ha-1, (N1P6K6) dosis KCl 110 kg ha-1, SP-36 300 kg ha-1+ Urea 400 kg ha-1, (N2P7K7) dosis NPK 300 kg ha-1+Urea 400 kg ha-1. Parameter yang diamati meliputi komponen vegetatif seperti tinggi tanaman, jumlah daun, diameter batang, indeks luas daun dan bobot biomasa. Parameter produksi yang diamati meliputi bobot gelondong per plot, rerata bobot gelondong 5 tanaman, dan bobot 100 butir sedangkan pada variabel perakaran yang diamati mencakup total panjang akar (LRV), kerapatan panjang akar (DRV) dan biomasa akar. Analisis data menggunaan Genstat edition 18th dari hasil pengamatan dianalisis menggunakan Uji F dilanjutkan dengan uji perbandingan nyata DMRT taraf 5%. Perlakuan aplikasi pupuk PK 52-34 250 kg ha-1 + Urea 400 kg ha-1 memberikan hasil yang tidak berbeda nyata terhadap varibel pertumbuhan tinggi tanaman 12 MST. Jumlah produksi per plot perlakuan aplikasi pupuk PK 52-34 250 kg ha-1 + Urea 400 kg ha-1 menghasilkan rerata bobot tertinggi dari semua perlakuan. Sedangkan total panjang akar (LRV) 50 HST dan 65 HST memberikan hasil yang berbeda nyata terhadap perlakuan aplikasi pupuk NPK majemuk. Kerapatan panjang akar (DRV) 50 HST dan 65 HST memberikan hasil yang tidak berbeda nyata kecuali pada DRV 65 HST perlakuan aplikasi pupuk NPK majemuk. Terdapat hubungan korelasi positif antara total panjang akar terhadap tinggi tanaman, diameter batang dan jumlah daun 12 MST. Hubungan korelasi positif bearti setiap penambahan total panjang akar akan diikuti oleh kenaikan dari tinggi tanaman, diameter batang dan jumlah daun 12 MST.
English Abstract
Corn production in Indonesia has not been able to meet national needs, including low productivity (ranging between 4-5 tons ha-1) the area of cultivation is relatively narrow because it is unable to compete with other economic commodities. In general, the diversity of maize productivity between regions in Indonesia and between farmers is due to differences in the application of cultivation technology that includes the use of superior seeds, fertilizers, and water management. Corn has enormous potential to be developed in the tropics and can yield up to 7.5 ton ha-1 if the plant is well managed. The purpose of this research activity is to know the effect of different doses of P and K 52-34 fertilizers on the growth and production of corn crops and to determine the total root length and root weight due to inorganic fertilizer application PK 52-34. Experiment was conducted on the second planting season with zero tillage treatment using Randomized Block Design (RAK). Treatment using a combination of different inorganic fertilizers dose of them (N0P0K0) control, (N1P0K0) dosis rekomendasi urea 400 kg ha-1, (N1P1K1) dosis PK 52-34 100 kg ha-1 + Urea 400 kg ha-1, (N1P2K2) dosis PK 52-34 150 kg ha-1 + Urea 400 kg ha-1, (N1P3K3) dosis PK 52-34 200 kg ha-1 + Urea 400 kg ha-1, (N1P4K4)dosis PK 52-34 250 kg ha-1 + Urea 400 kg ha-1, (N1P5K5) dosis dosis KCl 85 kg ha-1, SP-36 215 kg ha-1+ Urea 400 kg ha-1, (N1P6K6) dosis KCl 110 kg ha-1, SP-36 300 kg ha-1+ Urea 400 kg ha-1, (N2P7K7) dosis NPK 300 kg ha-1+Urea 400 kg ha-1. Parameters observed included vegetative components such as plant height, leaf number, stem diameter, leaf area index and biomass weight. The observed parameters were weight of logs per plot, average weight of 5 plants, and 100 grains weight, while in root variables observed included total root length (LRV), long root density (DRV) and root biomass. Data analysis using Genstat edition 18th from observation result was analyzed using F test followed by real 5% DMRT comparison test. Treatment of fertilizer application of PK 52-34 250 kg ha-1 + Urea 400 kg ha-1 gave no significant difference to the growth variables of plant height 12 WAP. The amount of production per fertilizer application plot PK 52-34 250 kg ha-1 + Urea 400 kg ha-1 yields the highest mean weight of all treatments. While the total length of roots (LRV) 50 HST and 65 DAP gave significantly different results on the treatment of NPK compound fertilizer application. Root length density (DRV) 50 DAP and 65 DAP gave no significant difference except for DRV 65 DAP treatment of compound NPK fertilizer application. There is a positive correlation relationship between total root length to plant height, stem diameter and leaf number 12 WAP. A positive correlation relationship means that each addition of total root length will be followed by an increase of plant height, stem diameter and leaf count of 12 WAP.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2018/190/051803028 |
| Uncontrolled Keywords: | - |
| Subjects: | 600 Technology (Applied sciences) > 633 Field and plantation crops > 633.1 Cereals > 633.15 Corn > 633.158 9 Corn (Fertilizers, soil conditioners, growth regulators) |
| Divisions: | Fakultas Pertanian > Agroekoteknologi |
| Depositing User: | Nur Cholis |
| Date Deposited: | 24 May 2018 06:50 |
| Last Modified: | 20 Oct 2021 07:35 |
| URI: | http://repository.ub.ac.id/id/eprint/11009 |
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