Pengaruh Aplikasi Bokashi Terhadap Dinamika Ketersediaan N, P, Dan S Pada Inceptisol Karangploso, Malang

Abstract

The Inceptisol of Karangploso has low soil pH, low organic matter (OM), medium total soil N, very low C/N ratio, and low available sulphurthat cause low soil productivity. The application of bokashi preserves strongly productivity and organic matter in the soil. This research aimed to determine the effect of bokashi application in improving soil chemical properties and N, P, Savailable in an Inceptisol of Karangploso. The experiment was conducted in greenhouse of Facultyof Agriculture, Brawijaya University using a completely randomized design with 7 treatments and 3 replications. The treatments consisted of O1 = dose of 5 t ha -1 + ½ A, O2 = dose of 10 t ha -1 + ½ A, O3 = dose of 15 t ha -1 + ½ A, O4 = dose of 20 t ha -1 + ½ A, O5 = dose of 25 t ha -1 + ½ A, and O6 = dose of 30 t ha -1 + ½ A. The results showed that the increasing dose of bokashi significantly increased soil pH (from 5.1 to 5.4), C/N ratio (from 9.64 to 9.93), P-available (from 141 to 142.6 ppm P) at 60 DAI (days after incubation), total N (from 0.21 to 0.24% at 30 DAI and 0.18% to 0.24% at 60 DAI ) and NO3 -(from 24.96 to 65.47 ppm at 30 DAI and 14.91 ppm to 39.20 ppm at 60 DAI) compared to the control, but it had no significantly effect on organic carbon, OM, SO4 2-in soil. The correlation test showed that there was a strong and positive correlation between pH and NO3 -(r=0,77*), organic carbon and NO3 -(r=0,63), organic carbon and P-available (r=0,78*), OM to NO3 -(r=0,70*), and OM to P-available (r=0,86*).

Pengaruh Aplikasi Biochar Sekam Padi Dan Kompos Terhadap Sifat Kimia Tanah, Pertumbuhan, Dan Serapan Fosfor Tanaman Jagung Pada Ultisol

“…Beberapa penelitian telah membuktikan bahwa aplikasi pupuk kompos mampu menggantikan peran pupuk anorganik dalam memperbaiki sifat kimia tanah. Kompos merupakan salah satu pupuk organik hasil dekomposisi sisa-sisa makhluk hidup yang mampu memperbaiki pH tanah, meningkatkan kandungan C-organik dan ketersediaan unsur hara P tanah, meningkatkan pertumbuhan, serta mengoptimalkan serapan P tanaman jagung oleh tanaman (Setyastika dan Suntari, 2019;Pane et al, 2014;Syahputra et al, 2015;dan Haitami dan Wahyudi, 2019).…”

Enzymatic Activities of Bok Choy (Brassica rapa subsp. Chinensis) Grown Soil with the Amendment of Sandwich Compost

“…erefore, its amendment of the Sandwich compost substrate can be an alternative to liming activity. Soil pH with Sandwich compost substrate amended soil exhibited an optimum plant growth pH range and they sustained four growing cycles [44][45][46]. Moreover, another soil amendment such as biochar was also able to stabilize the soil pH under drought conditions [47].…”

Bio-organo mineral effect on soil fertility, nutrient uptake, and sweet corn (Zea mays L. saccharata) growth planted in inceptisols soils

“…This research was conducted on Inceptisol soil from Jatinangor. Inceptisol is one of the most widespread soil types in Indonesia, which is 70.52 million hectares (37.5%) and spread in the lowlands to highlands on the island of Java, Kalimantan, Sumatra, and Papua (Setyastika and Suntari, 2019). The corn plant used in this test is sweet corn, which is a secondary commodity and belongs to the grass family (Gramineae) of the genus Zea and the species Zea mays L. Saccharate.…”