Soil properties of agricultural area in karst terrain of Parakan, Pangandaran, West Java, Indonesia

a clayed soil characterized by reddish in colour, thick solum and neutral acidity. Farmers in Parakan area, Parigi District of Pangandaran, usually cultivate cash crops in terra rossa. Nowadays, farmers have no information about the properties of the soil, which is an important factor to maintain and increase plant productivity. The objective of this descriptive quantitative study was to verify the soil characteristic included physicochemical and microbiological properties in a selected agricultural field of Parakan. The soil samples were taken from three different areas covered with different vegetation. The study showed that terra rossa in the karst area is a non-saline soil with neutral acidity and low electrical conductivity. The texture of all soils were clay contained >50% clay particle. The soils were low in organic carbon, total nitrogen and available phosphor; but high in total phosphor and potassium, as well as cation exchange capacity. The population of soil microbes include total and fungal bacteria, as well as nitrogen-fixing Azotobacter and phosphate solubilizing bacteria, were average. In order to increase the organic carbon level; and the availability of phosphor and nitrogen, organic matter amendment is needed.

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Soil organic carbon and phosphorus availability regulate abundance of culturable phosphate-solubilizing bacteria in paddy fields

Pedosphere ◽

10.1016/s1002-0160(17)60403-x ◽

2020 ◽

Vol 30 (3) ◽

pp. 405-413 ◽

Cited By ~ 3

Author(s):

Arvind KUMAR ◽

Lal Chand RAI

Keyword(s):

Organic Carbon ◽

Soil Organic Carbon ◽

Phosphorus Availability ◽

Paddy Fields ◽

Phosphate Solubilizing Bacteria ◽

Phosphate Solubilizing

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P-solubilizing Bacteria as a Panacea to Alleviate Stress Effects of High Soil CaCO3 content in Phaseolus Vulgaris with Special Reference to P-Releasing Enzymes

10.21203/rs.3.rs-200773/v1 ◽

2021 ◽

Author(s):

Atif A. Bamagoos ◽

Hesham F. Alharby ◽

Eman E. Belal ◽

Mostafa M. Rady ◽

Mahmoud Ali Abdelfattah

Keyword(s):

Phaseolus Vulgaris ◽

Biological Activities ◽

Calcareous Soils ◽

Exchange Capacity ◽

Carbonate Content ◽

Phosphate Solubilizing Bacteria ◽

Stress Effects ◽

High Soil ◽

Pot Trials ◽

Phosphate Solubilizing

Abstract Purpose: The present study examines the role of leguminous compost (LC), humic acid (HA), and phosphate-solubilizing bacteria (P-SB) in alleviating the stress effects of high soil CaCO3 content in Phaseolus vulgaris. Methods: Two pot trials for two consecutive seasons; fall 2019 and summer 2020 were implemented in an open greenhouse. With four replicates specified for each of five treatments, a randomized complete plot design was assigned to each trial. Results: Inoculation of calcareous soil with P-SB (a 1: 1 mixture of two Pseudomonas sp.; Ps. mallei and Ps. cepaceae) significantly exceeded LC, HA, or even LC+HA for the positive results obtained. P-SB facilitated nutrient solubility (e.g., N, K, Fe, and Mn), including conversion of insoluble phosphorous into a form available in the tested soil due to increased soil enzymatic activities (e.g., phosphatases and phytases). This mechanism, combined with a decrease in soil calcium carbonate content and an increase in cation exchange capacity (CEC) and organic matter (OM) content, increased the availability of various nutrients to plants, including P, in the soil, which contributed to the increased plant output. Adequate P content in plants led to a marked decrease in plant acid phosphatase activity under high content of CaCO3. Conclusions The study concluded that the use of P-SB promotes biological activities, nutrient availability, and thus the productivity of calcareous soils, enabling Phaseolus vulgaris plants to withstand stress produced by high CaCO3 content through the development and/or adoption of potentially effective mechanisms.

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The qualitative screening of cellulolytic, chitinolytic, IAA-producing, and phosphate solubilizing bacteria from black soldier fly larvae (Hermetia illucens L.)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/948/1/012065 ◽

2021 ◽

Vol 948 (1) ◽

pp. 012065

Author(s):

H Tamrela ◽

A Sugiyanto ◽

I Santoso ◽

Q G Fadhilah

Keyword(s):

Positive Result ◽

Klebsiella Oxytoca ◽

Cellulolytic Activity ◽

Phosphate Solubilizing Bacteria ◽

Agricultural Field ◽

Black Soldier Fly ◽

Hermetia Illucens ◽

Black Soldier Fly Larvae ◽

Phosphate Solubilizing ◽

Positive Results

Abstract Black soldier fly (Hermetia illucens L.) larvae are widely used in organic waste management. Its ability to digest organic compound was supported by the diversity of bacteria which produce various enzymes inside the larvae bodies. The exploration of potential bacteria in BSF larvae may have advantages for the agricultural field. This study aimed to screen cellulolytic, chitinolytic, phosphate solubilizing, and IAA-producing bacteria from BSF larvae. A total of 22 isolates were qualitatively screened using various media. Among the 22 isolates, five isolates showed positive results of cellulolytic activity; six isolates were able to digest chitin; nine isolates have positive result of IAA-producing test; and five isolates could solubilize phosphate in Pikovskaya’s agar. There were two isolates, B11 and B15, that gave positive result in three tests, those are on cellulolytic, phosphate solubilizing, and IAA producing test. Molecular identification of B11 showed that the isolate was similar to Bacillus altitudinis (100%) and B15 was closed to Klebsiella oxytoca (99.73%).

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KEBERADAAN BAKTERI PELARUT FOSFAT DAN AKTIVITAS ENZIM FOSFATASE TANAH DAERAH PERAKARAN TANAMAN OBAT DARI KEBUN RAYA CIBODAS

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v6i3.1943 ◽

2018 ◽

Vol 6 (3) ◽

Author(s):

Suliasih Suliasih

Keyword(s):

Alkaline Phosphatase ◽

Soil Sample ◽

Rhizosphere Soil ◽

Botanical Garden ◽

Soil Enzyme ◽

Soil Samples ◽

Phosphate Solubilizing Bacteria ◽

Bacillus Sp ◽

Phosphate Solubilizing ◽

Serratia Rubidaea

A study was undertaken to investigate to occurance of phosphate solubilizing bacteria from rhizosphere soil samples of medicine plants in Cibodas Botanical Garden. 13 soil samples of medicine plants are collected randomly The result shows that 71 isolates of phosphate solubilizing bacteria were isolated, and 10 species of these organism was identified as Azotobacter sp, Bacillus sp, Chromobacterium sp, C.violaceum, Citrobacter sp. , Enterobacter sp., E. liquefaciens. Nitrosomonas sp., Serratia rubidaea, Sphaerotillus natans. Azotobacter sp. And Bacillus sp. Are found in all of soil tested. Conversely, Serratia rubidaea is only in the sample from rhizosphere of Plantago mayor The activity of acid alkaline phosphatase in soil tested ranged from 0.78 â€“ 60,18 ugp nitrophenole/g/h, with the higest values being recorded in soil sample from rhizosphere of â€œLavenderâ€.Keywords : phosphate solubilizing bacteria, soil enzyme phosphatase

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EVALUASI PERUBAHAN KUALITAS TANAH PADA LAHAN BEKAS PENAMBANGAN NIKEL DI PULAU GEBE

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v4i1.1849 ◽

2018 ◽

Vol 4 (1) ◽

Author(s):

Mardi Wibowo

Keyword(s):

Organic Carbon ◽

Cation Exchange ◽

Cation Exchange Capacity ◽

Exchange Capacity ◽

Mining Activity ◽

Evaluation Activity ◽

Land Quality ◽

Environment Quality

Since year 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island – Center ofHalmahera District – North Maluku Province. Mining activity, beside give economically advantages also causedegradation of environment quality espicially land quality. Therefore, it need evaluation activity for change ofland quality at Gebe Island after mining activity.From chemical rehabilitation aspect, post mining land and rehabilitation land indacate very lack and lackfertility (base saturated 45,87 – 99,6%; cation exchange capacity 9,43 – 12,43%; Organic Carbon 1,12 –2,31%). From availability of nutrirnt element aspect, post mining land and rehabilitation land indicate verylack and lack fertility (nitrogen 0,1 – 1,19%). Base on that data, it can be concluded that land reclamationactivity not yet achieve standart condition of chemical land.Key words : land quality, post mining lan

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