Aplikasi Limbah Padat Karet Remah Pada Tanah Podsolik Merah Kuning Terhadap Ketersediaan Hara Makro Dan Perbaikan Sifat Fisika Tanah

Abstract

The chemical properties of Podsolic Red-Yellow soil have pH is very acidic to slightly acidic, low to moderate percentage of C-organic, low to moderate P, and low status of K, Ca, Mg, Na, and other saturation of bases. Also, the physical characteristics of the Red-Yellow Podsolic soil show a distinctive characteristic, as bulk density soil index of 1.30 - 1.50 g.cm-3, with low water absorption. The chemical and physical properties are bad enough to make Red-Yellow Podsolic soil have a low ability to provide macronutrients needed by plants. Organic matter is proven to be able to control nutrient availability in mineral soils. The potentials for organic material that has been completely decomposed is crumb rubber solid waste. The use of crumb rubber solid waste material as organic material is expected to be able to influence the availability of macronutrients and improve the physical characteristics of the Podsolic Red-Yellow soil. This study aims to find differences in the availability of NH4+ NO3-, H2PO4-, K-exchangeable, C-organic and to compare the treatments that produce the best index of soil bulk density, increase the percentage of water content, and determine the soil temperature of Red-Yellow Podsolic with the application of crumb rubber solid waste with difference level, statistical test with through the index of mean difference Tukey’s test on level α 5%. In this research it was concluded that the application of crumb rubber solid waste could increase soil pH, provide levels of NH4+, NO3-, H2PO4, K-exchangeable, C-organic and reduce soil bulk density index, increase water content and soil temperature compared to not using crumb rubber solid waste. PCr3 treatment showed the highest yield at pH, NH4+, H2PO4, C-organic and increased water content, but it was not significantly different than PCr2 treatment, whereas PCr2 was significantly different from PCr3 in providing NO3-, K-exchangeable.

Peningkatan Kualitas Kimia Tanah Sulfat Masam dengan Aplikasi Kombinasi Bahan Organik Lokal dan Limbah Agroindustri

“…Aplikasi limbah tersebut telah dibuktikan dalam penelitian Lubis (2019), yakni dapat meningkatkan tinggi tanaman, jumlah anakan, jumlah malai, dan produksi gabah tanaman padi. Aplikasi LPKR pada tanah mineral dapat meningkatkat pH tanah dan C-organik tanah serta ketersedian nitrogen, fosforus, dan kalium (Abdillah & Aldi 2020). Akan tetapi, hingga saat ini belum ditemukan hasil peningkatan kualitas kimia tanah mineral pasang surut yang ditanami padi berdasarkan aplikasi kombinasi kompos limbah organik lokal dan limbah padat agroindustri.…”

“…Kontrol = tanpa kompos dan komplementer; JKD = kombinasi kompos jerami 4 t ha -1 dan dekanter padat 2 t ha -1 ; JKR = kombinasi kompos jerami 4 t ha -1 dan limbah padat karet remah 2 t ha -1 ; SKD = kombinasi kompos TKKS 4 t ha -1 dan dekanter padat 2 t ha -1 ; SKR = kombinasi kompos TKKS 4 t ha -1 dan limbah padat karet remah 2 t ha -1 ; PKD = kombinasi kompos purun tikus 4 t ha -1 dan dekanter padat 2 t ha -1 ; PKR = kombinasi kompos purun tikus 4 t ha -1 dan limbah padat karet remah 2 t ha -1 . berikan bobot GLG tertinggi (66,3 g) yang berbeda nyata dibandingkan perlakuan lainnya tetapi tidak berberbeda nyata dibandingkan kombinasi kompos jerami dan dekanter padat (JKD), yakni 64,5 g. Adapun GLG terendah ialah pada perlakuan kontrol, yang hanya 7,2 g. Tambahan dekanter padat pada perlakuan kombinasi kompos mampu mendorong terakumulasinya nutrisi untuk tanaman sebagaimana yang dilaporkan (Embrandiri et al 2016) dan aplikasi LPKR pada tanah mampu menyediakan unsur hara (Abdillah & Aldi 2020). Pembentukan karbohidrat dalam bentuk gabah melibatkan banyak proses metabolisme dan memerlukan unsur hara makro maupun mikro.…”

Dyeing Jumput Batik Using Clay Media From the Malo Region, Bojonegoro

“…Iron found in nature forms compounds such as minerals hematitie, magnetite, pyrite, siderite, and limonite (Sartohadi, 2004). The content of hematite in the soil can produce a red color (Abdillah & Aldi, 2021).…”

MORPHOLOGICAL CHARACTERISTIC OF VIERUL LOCAL GRAPE (Vitis spp.) CUTTING SEEDS ON PODZOLIC SOIL USING VARIOUS CONCENTRATION OF AUXIN SOAK

“…The limited amount of optimal land in Indonesia is decreasing, so there is a need to utilize suboptimal land in agricultural cultivation (Sari et al, 2020). One of the suboptimal lands comes from the podzolic soil type (ultisol) with soil physical properties of fine clay texture and clods that affect the absorption of water and nutrients (Abdillah & Aldi, 2021;Dariah & Heryani, 2014). However, podzolik soil can still be used for agricultural cultivation, one of which is used as a planting medium in grape cuttings nurseries (Hartati, 2006).…”