Kurniawan, Wilda Ainun (2017) Pengaruh Pemberian Urea Pada Sistem Trash Management Terhadap Sifat Fisika Tanah Di Pusat Penelitian Gula Perkebunan Nusantara X Kabupaten Kediri Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Tanah merupakan media tumbuh dan penyedia unsur hara bagi tanaman. Adanya ketersediaan unsur hara didalam tanah merupakan salah satu faktor yang mendukung pertumbuhan tanaman disamping faktor fisik dan biologi tanah. (Hardjowigeno,1995). Tanaman tebu (Saccharum officinarum) dimanfaatkan sebagai bahan baku utama dalam industri gula. Pengembangan industri gula mempunyai peranan penting bukan saja dalam rangka mendorong pertumbuhan perekonomian di daerah serta penambahan atau penghematan devisa, tetapi juga langsung terkait dengan pemenuhan kebutuhan pokok rakyat dan penyediaan lapangan kerja (Farid, 2003). Oleh karena itu Pusat Penelitian Gula PTPN X Jengkol Kediri, mencoba melakukan inovasi baru dengan melakukan sistem trash management (mulsa seresah tebu) yang di tambahkan dengan pemberian larutan urea untuk mempercepat dekomposisi. Metode yang digunakan dalam penelitian ini adalah metode survey yang dilaksanakan di Kebun HGU Djengkol PTPN X PG Pesantren Baru Kediri. Untuk metode pengambilan sampel tanah menggunakan sistem purposive sampling dimana pengambilan contoh tanah dilakukan dengan berbagai macam pertimbangan yang akan diambil pada setiap horizon minipit. Penelitian dilaksanakan pada kebun C13 yang didasarkan pada pada 6 perlakuan yaitu: Tanaman ratoon yang diberi mulsa serasah dicacah + Urea 9 gram/perlakuan; Tanaman ratoon yang diberi mulsa serasah dicacah + Urea 13,5 gram/perlakuan; Tanaman ratoon yang diberi mulsa serasah dicacah + Urea 18 gram/perlakuan; Tanaman ratoon yang diberi mulsa serasah dicacah + Urea 22,5 gram/perlakuan; Tanaman ratoon yang diberi mulsa serasah dicacah + Urea 27 gram/perlakuan; Tanaman ratoon yang diberi mulsa trash dicacah (Kontrol). Hasil dari penelitian ini bahwa dengan aplikasi larutan urea 27 gram/perlakuan pada mulsa seresah tebu hingga pengamatan 220 hari mampu memperbaiki tanah terutama menurunkan berat isi hingga 0,94 g/cm3. Namun belum memberikan kontribusi pada perbaikan berat jenis, porositas, dan agregat tanah. Pengambilan sampel, jumlah populasi mikroorganisme, serta iklim mikro di lahan dapat mempengaruhi hasil data yang didapatkan karena tingkat kelembaban suatu tanah mempengaruhi tingkat kekerasan tanah.
English Abstract
Soil is a growing medium and a provider of nutrients for plants. The availability of nutrients in the soil is one of the factors supporting plant growth in addition to physical and biological factors of the soil. (Hardjowigeno, 1995). Sugarcane (Saccharum officinarum) is used as the main raw material in the sugar industry. The development of the sugar industry has an important role not only in order to encourage economic growth in the region and the addition or saving of foreign exchange, but also directly related to the fulfillment of people's basic needs and the provision of employment (Farid, 2003). Therefore, Sugar Research Center of PTPN X Jengkol Kediri, tried to innovate by doing trash management system (mulsa litter of sugar cane) which is added by giving urea solution to accelerate decomposition. The Method used on this research is survey method which is applied in HGU garden PTPN X PG HGU PesantrenBaru Jengkol Kediri. For the soil sample taking method, the researcher uses purposive sampling system where the soil sample taking is applied with some considerations taken toward every minipit horizon. The research is conducted in C13 garden based on 6 treatments namely: ratoon plant given with truncated mulch of trash + Urea 9 gram/treatment; ratoon plant given with truncated mulch of trash + 13,5 gram Urea/ treatment; ratoon plant given with truncated mulch of trash + 18 gram Urea/ Treatment ratoon plant given with truncated mulch of trash + 22,5 gram/ treatment; ratoon plant given with truncated mulsaserasah + 27 gram Urea/ treatment; ratoon plant given with truncated mulch of trash (Control). The result of this research that with application of urea solution 27 gram / treatment at mules sugar cane litter until 220 days observation can improve the soil, especially decrease the weight of content up to 0,94 g / cm3. However it has not contributed to the improvement of specific gravity, porosity, and soil aggregates. Sampling, population of microorganisms, and microclimate in the field can affect the results of data obtained because the moisture level of a soil affects the level of soil hardness.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2017/330/051706853 |
| Uncontrolled Keywords: | Tanah, Tanaman, Trash Management, Urea |
| Subjects: | 600 Technology (Applied sciences) > 631 Specific techniques; apparatus, equipment materials > 631.4 Soil science > 631.43 Soil physics |
| Divisions: | Fakultas Pertanian > Ilmu Tanah |
| Depositing User: | Yusuf Dwi N. |
| Date Deposited: | 01 Nov 2017 02:04 |
| Last Modified: | 29 Aug 2020 06:32 |
| URI: | http://repository.ub.ac.id/id/eprint/4662 |
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