Pupuk organo-kimia untuk pemupukan bibit kelapa sawit Organo-chemical fertilizer for oil palm seedling fertilization

Abstract

SummaryThe availability of high quality and quantity of oil palm seedling needs consistent support of fertilization programs for economic production. Organo-chemical fertilizer with rock phosphate and urea added was initiated to increased economic value of agriculture and estate crops residues. The prototype of organo-chemical fertilizer has 10% organic C, 11% N, 8% P, 1% K and 4% humic acid respectively. Based on greenhouse experiments, organo-chemical fertilizer treated to oil palm seedlings tends to provide a better vegetative growth of the seedlings. Dry weights of leave, stem, and root of the seedlings applied with 100 g organo-chemical fertilizer plus 10 g KCl to each seedling were significantly different compared to the standard dosage conventional fertilizer. This organo-chemical fertilizer could be applied as conventional fertilizer substitute.Ringkasan Ketersediaan bibit kelapa sawit ber-kualitas dengan kuantitas yang terus meningkat memerlukan dukungan program pemupukan yang konsisten untuk mencapai tingkat produksi yang ekonomis. Pembuatan pupuk organo-kimia dengan penambahan batuan fosfat dan N ditujukan untuk meningkatkan nilai ekonomi limbah pertanian dan perkebunan. Prototipe pupuk organo-kimia ini mengandung 10% C-organik, 11% N, 8% P, 1% K dan 4% asam humik. Pemberian 100 g pupuk organo-kimia yang ditambah 10 g KCl per bibit menghasilkan berat kering daun, batang, dan akar yang lebih baik dan berbeda nyata apabila dibandingkan dengan peng-gunaan pupuk konvensional dosis standar. Berdasarkan hasil tersebut, prototipe pupuk organo-kimia ini dapat digunakan sebagai substitusi pupuk konvensional untuk pemupuk-an bibit kelapa sawit.

Nano Biochar Coating Methods of Urea Type to Increase the Growth and Yield of Shallot

“…Wang [18] states that applying biochar can improve the soil's ability to store nitrogen, boost its use efficiency, and decrease nitrogen loss. Nitrogen can be absorbed by nanoscale biochar despite its small covalent radius of 71 pm [10].…”

“…By conditioning the biochar material to a size of 1 to 100 nm, it is possible to modify it and create what is known as "Nano Biochar." [10]. Nanotechnology can be used to develop slow-release fertilizers that can significantly retain nutrients in the soil with a ratio of 6 1 urea-hydroxyapatite Nanohybrids.…”

Efisiensi Penggunaan Radiasi Matahari Dan Partisi Bahan Kering Bibit Kelapa Sawit Pada Berbagai Dosis Pupuk Nitrogen Dan Fosfor

“…Menurut Pahan (2008), Produksi awal di lapangan berkorelasi positif dengan luas daun pada periode belum menghasilkan (TBM) dan keadaan pembibitan yang baik. Bibit yang baik di pembibitan awal dan pembibitan utama dan mendapatkan dosis pemupukan yang tepat merupakan upaya untuk mencapai hasil yang optimal dalam pengembangan budidaya kelapa sawit (Santi & Goenadi, 2008).…”

Bio-organo-chemical fertilizers: a new prospecting technology for improving fertilizer use efficiency (FUE)

“…Several approaches that have been reported by Santi and Goenadi [20] such as organo-chemical fertilizer with humic substances utilization. Fertilizers with humic substances can be used on different types of soil, as well as in technologies for improving degraded or contaminated soils and they proved effective on a wide range of cultures.…”

“…Pettit [21] explained that humic substances are the components of humus and as such are high molecular weight compounds that together form the brown to black hydrophilic, molecularly flexible, polyelectrolytes called humus. The research of [20] was to developed organo-chemical fertilizer with rock phosphate and urea. The organic materials which obtained from oil palm plantations then processing by compost methods.…”