Electronic Theses and Dissertation

Ringkasan inceptisol adalah jenis tanah yang mempunyai produktivitas alami yang beragam karena tidak memiliki sifat fisik dan kimia tanah yang khas (muyassir et al., 2012). oleh karena itu pemanfaatan inceptisol untuk masa akan datang perlu ditingkatkan secara maksimal. inceptisol merupakan jenis tanah yang baru dapat dikatakan mulai berkembang yang ditunjukkan dengan tingkat kesuburan tanah yang rendah akibat ketersedian bahan organik yang sedikit yaitu sekitar 3%.namun dapat ditingkatkan menggunakan upaya yang tepat salah satunya dengan penambahan kombinasi pupuk organik, biochar dan pupuk hayati. bahan organik adalah pupuk organik merupakan hasil dekomposisi bahan-bahan organik baik tumbuhan kering (humus) maupun limbah dari kotoran ternak yang diurai (dirombak) oleh mikroba hingga dapat menyediakan unsur hara yang dibutuhkan tanaman untuk pertumbuhan dan perkembangan tanaman. biochar adalah bahan yang kaya karbon yang diperoleh dengan pirolisis biomassa dan diketahui mempunyai berbagai dampak positif ketika digunakan sebagai pembenah tanah yang kurang subur, seperti peningkatan ketersediaan nutrisi, memperbaiki sifat fisika dan biokimia tanah serta siklus biogeokimia dan pada akhirnya meningkatkan produksi tanaman (sohi et al. 2010). eco farming adalah pupuk berbahan organik super aktif yang sudah mengandung unsur hara lengkap sesuai kebutuhan tanaman serta dilengkapi dengan bakteri positif yang dapat menjadi biokatalisator. dengan adanya pemberian kombinasi pupuk dapat meningkatkan kesuburan tanah , juga dapat meningkatkan produksi tanaman bawang merah dan produktivitas lahan. sehingga perlu dilakukan percobaan bahan organik dengan tujuan untuk: mengetahui pengaruh dari kombinasi pemberian pupuk organik, biochar, dan pupuk hayati terhadap perubahan sifat kimia tanah inceptisol, pertumbuhan dan produksi tanaman bawang merah (allium ascalonicum l.) penelitian ini dilaksanakan pada bulan juli hingga bulan agustus 2023, mulai dari penyiapan lokasi sampai analisis sifat kimia tanah di laboratorium. metode yang digunakan dalam penelitian ini yaitu rancangan acak kelompok ( rak ) non factorial, dengan 7 perlakuan dan masing – masing perlakuan diulang sebanyak 3 kali. adapun perlakuannya yaitu p0, p1 pupuk organik + biochar + pupuk hayati, p2 pupuk organik + biochar + pupuk hayati , p3 pupuk organik + biochar + pupuk hayati , p4 pupuk organik + biochar + pupuk hayati , p5 pupuk organik + biochar , p6 pupuk organik + biochar. hasil penelitian menunjukkan bahwa pemberian kombinasi pupuk organik, biochar dan pupuk hayati tidak berbeda nyata terhadap sifat kimia tanah tersebut kecuali k-dd tanah. pemberian kombinasi pupuk organik, biochar dan pupuk hayati berpengaruh nyata terhadap sifat kimia k-dd tanah. pemberian kombinasi pupuk organik, biochar dan pupuk hayati ( eco farming ) tidak berbeda nyata terhadap jumlah umbi dan bobot kering dan basah pada pertumbuhan dan hasil tanaman bawang merah.

SUMMARY Inceptisol is a type of soil that has diverse natural productivity because it does not have typical physical and chemical soil properties (Muyassir et al., 2012). Therefore, the use of Inceptisol in the future needs to be increased optimally. Inceptisol is a type of soil that can only be said to be starting to develop, as indicated by the low level of soil fertility due to the low availability of organic material, namely around 3%. However, it can be improved using the right efforts, one of which is by adding a combination of organic fertilizer, Biochar and biological fertilizer. Organic material is organic fertilizer which is the result of the decomposition of organic materials, both dry plants (humus) and waste from livestock manure which is decomposed (broken down) by microbes so that it can provide the nutrients needed by plants for plant growth and development. Biochar is a carbon-rich material obtained by pyrolysis of biomass and is known to have various positive impacts when used as an improver in less fertile soil, such as increasing nutrient availability, improving physical and biochemical properties of soil as well as biogeochemical cycles and ultimately increasing plant production (Sohi et al 2010). Eco Farming is a fertilizer made from super active organic ingredients which contains complete nutrients according to plant needs and is equipped with positive bacteria which can act as biocatalysts. By providing a combination of fertilizers, it can increase soil fertility, it can also increase shallot crop production and land productivity. So it is necessary to carry out experiments on organic materials with the aim of: Knowing the effect of a combination of applying organic fertilizer, biochar and biofertilizer on changes in the chemical properties of Inceptisol soil, growth and production of shallot plants (allium ascalonicum L.) This research was carried out from July to August 2023, starting from site preparation to analyzing the chemical properties of the soil in the laboratory. The method used in this research was a non-factorial randomized block design (RAK), with 7 treatments and each treatment was repeated 3 times. The treatments are P0, P1 Organic fertilizer + Biochar + biological fertilizer, P2 Organic fertilizer + biochar + biological fertilizer, P3 Organic fertilizer + biochar + biological fertilizer, P4 Organic fertilizer + biochar + biological fertilizer, P5 Organic fertilizer + biochar, P6 Organic fertilizer + biochar. The results of the research showed that the application of a combination of organic fertilizer, biochar and biological fertilizer did not significantly differ in the chemical properties of the soil except for the K-dd of the soil. Providing a combination of organic fertilizer, biochar and biological fertilizer has a significant effect on the chemical properties of soil K-dd. Providing a combination of organic fertilizer, biochar and biological fertilizer (Eco Farming) did not significantly differ in the number of bulbs and dry and wet weights in the growth and yield of shallot plants.