KERAGAMAN JENIS DAN POPULASI MIKORIZA ARBUSKULA DALAM BERBAGAI KELOMPOK UMUR PINUS TUMPANGSARI KOPI DI UB FOREST

Differences in tree age and cropping systems may influence the microbial diversity, including fungal species and population. The purpose of this study was to determine the diversity, of species and population of arbuscular mycorrhiza spores and the relationship between the number of arbuscular mycorrhiza spores and the soil chemical properties in different pine age group and coffee as an intercropping system at sloped areas. The study was conducted from April to July 2017. The study used a survey method with 5 age groups (KU) and three replications. The study was divided into 3 stages: 1). collection of soil and root samples, as well as measuring plot characteristics (i.e. basal area, canopy cover, standing litter mass); 2). Measurement of Mycorrhizal in the laboratory (spore extraction, spore identification, root colony percentage analysis); 3). Soil Chemical Analysis (pH, total P, available P). All data was tabulated, and tested using ANOVA with Randomized Block Design. If there is a significantly different, a further LSD test is performed with a level of 5%. Correlation and regression tests were performed to determine the relationship between parameters. The results showed that there were significant differences in the parameters of canopy density, number of genus spores of Acaulospora 100 g-1 soil, Soil pH, and total P in the soil. However, the study was unable to detect significant differences in, other parameters, such as root infection, number population of Glomus and Gigaspore, available P, etc.. The correlation test showed that the increase in the age group of the coffee intercropping system did not correlate with the number of arbuscular mycorrhizae in each plot observed. The number of Arbuscular Mycorrhizal Spores in each age group of intercropping pine did not correlate with the soil's chemical properties (pH, P-Total, P-Available).

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PENGARUH DOSIS PUPUK MIKORIZA VESICULAR ARBUSKULAR TERHADAP SIFAT KIMIA TANAH PADA TANAMAN KEDELAI (Glycine max (L) Merr)

AGRICA ◽

10.37478/agr.v5i1.441 ◽

2020 ◽

Vol 5 (1) ◽

pp. 1-11

Author(s):

Julianus Jeksen

Keyword(s):

Arbuscular Mycorrhiza ◽

Block Design ◽

Chemical Properties ◽

Available P ◽

Soybean Plant ◽

Soil Organic C ◽

Vesicular Arbuscular Mycorrhiza ◽

Organic C ◽

Vesicular Arbuscular ◽

Soil Available P

This study aims at determining the influence of vesicular-arbuscular mycorrhiza dosage on soil chemical properties of soybean and its optimum dosage that can increase the soil available-P on crops of soybean. This research was conducted in Lokoboko village, Ndona Subdistrict of Ende regency. This study used Randomized Block Design and a single-pattern factor consists of five treatments and four replications namely M0 : 0 gr pot-1 or without mycorrhiza, M5: 5 gr pot-1 mycorrhiza, M10: 10 gr pot-1 mycorrhiza, M15: 15 gr pot-1 mycorrhiza and M20: 20 gr pot-1 mycorrhiza. The variables of this study are plant–absorption P (mg tan-1), soil–available P (mg kg-1), soil-organic C (%) and pH of soil. The results showed that the use of vesicular-arbuscular mycorrhiza fertilizer for crops of soybean could increase soil-available P in 56,26%, plant-absorption P in 65%, pH of the soil in 6,06% and soil-organic C in 62,68 %. The use of vesicular-arbuscular mycorrhiza fertilizer on the dosage of 20 g has the better effectivity in increasing soil-available P in the soybean plant.

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Peningkatan Produktivitas Tanaman Padi Sawah Melalui Pemupukan Kompos dan NPK

Agrotrop : Journal on Agriculture Science ◽

10.24843/ajoas.2019.v09.i02.p08 ◽

2019 ◽

Vol 9 (2) ◽

pp. 178

Author(s):

I GUSTI PUTU RATNA ADI ◽

I NYOMAN PUJA

Keyword(s):

Rice Yield ◽

Block Design ◽

Chemical Properties ◽

Crop Productivity ◽

Grain Weight ◽

Npk Fertilizers ◽

Randomized Block Design ◽

Two Factors ◽

Total P ◽

Npk Fertilization

Increased Rice Crop Productivity Through Compost and NPK Fertilization. The aims of this research was to study response of compost and NPK fertilizers to the soil chemical properties and rice yield. The method used was a factorial Randomized Block Design consisting of two factors. The first factor was compost Fertilizer (B) consists of 2 levels, namely: B0 = Without compost fertilizer and B1 = 5 ton compost fertilizer ha-1. The second factors was NPK national recomendation (P) consists of 3 levels, namely: P1 = 50% of NPK recommendation, P2 = 100% of NPK recommendation and P3 = 150% of NPK recommendation. The results showed that the treatment of compost and NPK fertilizers gave no significant effect on tillers number clumb-1 and dry straw weight/m2 , but gave a significant effect on N, P, K and dry grain weight/m2. The combination of 5 tons of compost/ha and 150% of NPK recommendation can produce N-total, P-available level, K-available and dry grain weight per m2 respectively 0.35%, 13.79 ppm, 355, 21 ppm and 0.96 kg and significantly higher than the combination of 50% NPK recommendation and without compost, which were 0.26%, 8.21 ppm, 236.10 ppm and 0.69 kg respectively.

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Effect of Potassium Humate and Micronic Sulfur on the Chemical Properties of Some Soils of Toshka, Egypt

Asian Journal of Soil Science and Plant Nutrition ◽

10.9734/ajsspn/2020/v6i230081 ◽

2020 ◽

pp. 1-9

Author(s):

Atef A. A. Sweed ◽

Ahmed A. M. Awad

Keyword(s):

Soil Ph ◽

Block Design ◽

Chemical Properties ◽

Agricultural Practices ◽

Loamy Sand ◽

Available P ◽

Control Treatment ◽

Soil Drainage ◽

Potassium Humate ◽

And Control

Low soil organic matter, low nutrient availability and the higher soil pH (more than 8) are the major problem of agricultural practices in region of Toshka. An incubation trial at October 2019 was conducted to investigate the effect of potassium humate (KH) and micronic sulfur (MS) on some chemical properties of different soils (sandy clay soils, loamy sand and sandy soils). The used amendments (KH and MS) were added to the studied soil at 4 levels of each amendment i.e. 0.0, 0.25, 0.50 and 1.0%. A two way randomized completely block design and provided with three replications. Studied parameters were included soil pH, EC, exchange Na and the content of available - P and K. Results showed that, the MS application at 1% level caused a significant decrease in soil pH values compared with the KH application and control treatment. These reductions were more pronounced in case of soil B (loamy sand). Also, KH application gave an increase on exchange Na and available-K. While MS application was cause an increased in soil EC and available-P in the three soils under study. Moreover, the increases in the percentage of available – K with added of KH were higher than added of MS for soils under study. While the percentages of available-P with added of KH were higher than with added of MS for studied soils. It may be recommended to add KH and MS at a rate of 1% to improve the soil chemical properties. But the effect of application from MS has greater than KH to increase dissolved sodium salts on the form of sodium sulfate, which facilitates disposal during soil drainage.

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PENGARUH APLIKASI BIOCHAR SEKAM PADI DAN KOMPOS TERHADAP SIFAT KIMIA TANAH, PERTUMBUHAN, DAN SERAPAN FOSFOR TANAMAN JAGUNG PADA ULTISOL

Jurnal Tanah dan Sumberdaya Lahan ◽

10.21776/ub.jtsl.2021.008.2.10 ◽

2021 ◽

Vol 8 (2) ◽

pp. 385-394

Author(s):

Diva Ariella Herhandini ◽

Retno Suntari ◽

Ania Citraresmini

Keyword(s):

Organic Carbon ◽

Rice Husk ◽

Block Design ◽

Chemical Properties ◽

P Uptake ◽

Soil Chemical Properties ◽

Available P ◽

Maize Crop ◽

Randomized Block Design ◽

Rice Husk Biochar

Rice husk biochar and compost application are expected to improve soil chemical properties such as pH, organic carbon, and available P in Ultisol, which in turn improves crop growth and P uptake by plants. The purpose of this research was to analyze the effect of the combination of rice husk biochar and compost on the soil chemical properties (pH, organic carbon, and available P), maize growth, and P uptake by maize in an Ultisol. The research used a Randomized Block Design with six treatments (P0: control; P1: 4 t biochar ha-1; P2: 30 t compost ha-1; P3: 4 t biochar ha-1 and 30 t compost ha-1; P4: 8 t biochar ha-1 and 30 t compost ha-1; P5: 4 t biochar ha-1 and 60 t compost ha-1) and four replications. The result showed that the combination of 8 t rice husk biochar ha-1 and 30 t compost ha-1 showed a significant effect on increasing pH, organic carbon, and available P in an Ultisol, increasing the height of maize crops at 4 and 6 WAP (weeks after planting). However, it had no effect on the number of leaves and showed an effect on the increase in P uptake of maize crop.

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HUBUNGAN UMUR DENGAN Biomassa, Stok karbon dioksida, Tegakan POHON DUKU (Lansium parasiticum) DI DESA KALIKAJAR KECAMATAN KALIGONDANG KABUPATEN PURBALINGGA

BioEksakta : Jurnal Ilmiah Biologi Unsoed ◽

10.20884/1.bioe.2020.2.1.1866 ◽

2020 ◽

Vol 2 (1) ◽

pp. 146

Author(s):

Septi Nuranisa ◽

Eming Sudiana ◽

Edy Yani

Keyword(s):

Carbon Dioxide ◽

Regression Analysis ◽

Carbon Stock ◽

Plant Density ◽

Pearson Correlation ◽

Tree Age ◽

Survey Method ◽

Stand Age ◽

Age Group ◽

Planting Distance

This research entitled "Age Relationship with Carbon Dioxide Stock of Duku Tree (Lansium parasiticum) in Kalikajar Village, Kaligondang District, Purbalingga Regency". The puspoe of this research are: 1) Knowing the effect of stand age on the amount of carbon dioxide stock stored in duku stands (Lansium parasiticum) in Kalikajar Village, Kaligondang District, Purbalingga Regency. 2) Knowing the age of duku plants (Lansium parasiticum) in Kalikajar Village, Kaligondang District, Purbalingga Regency which has the most potential carbon dioxide stock. The research used survey method by determining tree biomass using stratified random sampling. The strata used is the age of duku plants. Each age strata is taken 3 trees to measure its diameter. The land area is divided by the planting distance to get the results of plant density in that location. Measurement of stand stem diameter is carried out on stand stems at the researchers' chest height (at breast height or dbh). The measuring tape is wrapped around the stand stems in a parallel position for all directions so that the data obtained is the circumference or convolution of the stem (circumference of the stem = 2πr). Age, biomass, and carbon stock data were analyzed using variance analysis (Anova), while the relationship between biomass and carbon stock was analyzed using Pearson correlation and regression analysis. The regression analysis between age and carbon dioxide stock shows an exponential pattern. The lowest corbon dioxide stock of the duku plant is found in the age group <5 years, which is 9.54 tons/ha, while the largest carbon dioxide stock of the duku tree is in the age group > 30 years (40 years) which is 74.89 tons/ha. Thus, this study has not yet gotten the most optimal tree age in storing carbon dioxide. Therefore it is necessary to do research on duku trees that are older than 40 years.

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Broiler litter applications and chemical properties of highly weathered soils.

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v96i3-4.2852 ◽

1969 ◽

pp. 129-138

Author(s):

Miguel A. Muñoz ◽

Ulises Chardón-Alcázar

Keyword(s):

Electrical Conductivity ◽

Block Design ◽

Chemical Properties ◽

Available P ◽

Broiler Litter ◽

Weathered Soils ◽

Randomized Block Design ◽

Exchangeable Ca ◽

Exchangeable Al ◽

Highly Weathered Soils

The effect of broiler litter applications on chemical properties of three highly weathered soils of different mineralogy was evaluated. The soils included in the study were Coto (very fine, kaolinitic, isohyperthermic Typic Eutrustox), Consumo (fine, mixed, semiactive, isohyperthermic Typic Haplohumults), and Corozal (very fine, parasesquic, isohyperthermic Typic Hapludults). Five broiler litter treatments (0, 5, 10, 15 y 20 t/ha) were evaluated in a Complete Randomized Block Design with four replications. The soils were incubated for two months at room temperature (23° C). Broiler litter did not increase 3+ significantly the pH of the soils; however, soil exchangeable Al decreased 3+ in all soils as a result of broiler litter applications. Exchangeable Al in Coto soil decreased from 0.21 cmolc/kg in the 0 broiler litter treatment to 0.09 cmolc/kg in the 20 t/ha treatment, in Consumo soil from 1.08 to 0.19 cmolc/kg, and in Corozal soil from 7.57 a 5.76 cmolc/kg. The treatments also increased electrical conductivity of the soils, such an effect being more evident in Coto soil. The 20 t/ha treatment increased soil electrical conductivity of Coto by 74%, whereas for Consumo and Corozal soils the increase was only 55 and 54%, respectively. Available P content in Coto soil increased from 40 mg/kg in the check treatment, to 65 mg/kg in the 20 t/ha manure treatment. In Consumo and Corozal soils no significant change in available P was observed. This finding is indicative of the high P fixing capacity of these soils. It is suggested 3+ that soil exchangeable Al in Consumo and Corozal soils is reacting with P in the manure, forming aluminum phosphates and contributing to phosphate + 2+ fixation. Broiler litter application increased exchangeable K and Mg , but 2+ 2+ not exchangeable Ca , in the three soils; exchangeable Mn increased in Consumo and Coto soils.

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Chemical properties of forest soils as affected by nests of Myrmica ruginodis (Formicidae)

Biologia ◽

10.2478/s11756-009-0222-4 ◽

2010 ◽

Vol 65 (1) ◽

Cited By ~ 2

Author(s):

Adam Véle ◽

Jan Frouz ◽

Jaroslav Holuša ◽

Jiří Kalčík

Keyword(s):

Organic Matter ◽

Mineral Soil ◽

Chemical Properties ◽

Organic Content ◽

Available P ◽

Soil Mixing ◽

Myrmica Ruginodis ◽

Food Residues ◽

Total P ◽

Surrounding Soil

AbstractChemical properties (total and available P concentration; oxidizable C concentration; available K, Na, and Ca concentration; and pH) were quantified for 33 nests of the ant Myrmica ruginodis and in surrounding soil in young spruce forest stands. All properties, except total P, were significantly higher in the nests than in the surrounding soil. Total P was not higher in nests than in surrounding soil across all nests because nests had higher total P than surrounding soil if the soil contained low concentrations of total P but nests had lower total P than surrounding soil if the soil contained high concentrations of total P. The effect of nests on total P in the surrounding soil corresponded with effects of nests on oxidizable carbon (an indicator of organic matter) in the surrounding soil (concentrations of oxidizable carbon and total P were closely correlated). Available P concentrations were much higher in nests than in surrounding soil. Overall, the results indicated that two main processes explain the chemical changes of soil in the ant nests: (i) mixing due to excavation of deeper soil layers and (ii) deposition of excreta and food residues. The effect of soil mixing (whereby ants transport mineral soil from deeper layers to layers near the surface) is more pronounced in soils with high organic content near the surface because mixing increases the proportion of mineral soil in the nest while decreasing the proportion of organic matter and the concentration of total P.

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Vesicular–arbuscular mycorrhiza and soil fertility influence mineral concentrations in seedlings of eight hardwood species

Canadian Journal of Forest Research ◽

10.1139/x82-124 ◽

1982 ◽

Vol 12 (4) ◽

pp. 829-834 ◽

Cited By ~ 12

Author(s):

Richard C. Schultz ◽

Paul P. Kormanik

Keyword(s):

Soil Fertility ◽

Arbuscular Mycorrhiza ◽

Arbuscular Mycorrhizae ◽

Growing Season ◽

Fertilizer Treatment ◽

Hardwood Species ◽

Vesicular Arbuscular ◽

High Concentrations ◽

Mineral Concentrations ◽

Total P

Eight hardwood species were grown under two sets of fertilizer and vesicular–arbuscular mycorrhizae (VAM) treatments. In the first study three treatments of 140, 560, and 1120 kg/ha of 10– 10– 10 (% N, P2O5, and K2O, respectively) fertilizer were added to fumigated soil with or without a mixture of Glomusmosseae Nicol. and Gerd. and Glomusetunicatus Becker and Gerd. (GM). In the second study, seedlings were grown with VAM treatments of (i) the same Glomus (GM) mixture as in study 1, (ii) Glomusfasiculatus (Thaxter) Gerd. and Trappe (GF), or (iii) mixed cultures of several Glomus and Gigaspora species (GG). A fertilizer treatment of 280 kg/ha of 10– 10– 10 was added to all seedlings. All treatments, in both studies, also received 10 equal applications of NH4NO3, totaling 1680 kg/ha, during the growing season. No single nutrient was consistently higher in nonmycorrhizal or VAM seedlings in either study and no symbiont produced consistently high concentrations of all nutrients in all species. Uninoculated seedlings frequently had higher N, K, Ca, and Mg concentrations than VAM seedlings. Inoculated seedlings generally had higher total P concentrations than uninoculated seedlings. For uninoculated seedlings of five of the species, P concentrations increased with higher fertility levels. Seedlings inoculated with GM and GG had higher P concentrations than those inoculated with GF. In numerous instances, uninoculated seedlings had higher mineral concentrations than VAM seedlings even though the uninoculated seedlings were always the smallest. This suggests that VAM provide stimulation other than or in addition to the enhanced nutrient uptake.

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EKSPLORASI MIKORIZA ARBUSKULA PADA BEBERAPA KEDALAMAN TANAH DI PERAKARAN RUMPUT BANTENG PADA LAHAN PASCATAMBANG

Jurnal Tanah dan Sumberdaya Lahan ◽

10.21776/ub.jtsl.2021.008.2.5 ◽

2021 ◽

Vol 8 (2) ◽

pp. 341-347

Author(s):

Yhudo Tomo ◽

Budi Prasetya

Keyword(s):

Heavy Metals ◽

Population Density ◽

Plant Growth ◽

Soil Ph ◽

Arbuscular Mycorrhizae ◽

Soil Depth ◽

Chemical Properties ◽

Arbuscular Mycorrhizal ◽

Strong Relationship ◽

The Relationship

The presence of mycorrhizae can reduce the level of poisoning caused by heavy metals in post-mining land and support plant growth. Post-mining land is generally only a few types of mycorrhizae that can adapt, especially post-mining land. This research was conducted to determine the presence, types and distribution of mycorrhizae as well as the relationship between soil depth and mycorrhizal distribution and soil chemical properties at various depths in the rhizosphere of bull grass as the dominant vegetation in post-coal mining land. The results showed that there were arbuscular mycorrhizae at each soil depth with different population density levels, namely 273 spores 100 g-1 soil at a depth of 0 - 10 cm (K10); 239 spores 100 g-1 soil at a depth of 10 – 20 cm (K20) and 155 spores 100 g-1 soil at a depth of 20 – 30 cm (K30). The arbuscular mycorrhizae found at all soil depths are of the same type, which is included in the genus Glomus. Soil depth with the number of arbuscular mycorrhizal distribution (r count -0.7754> r table -0.4973) has a very strong relationship and with soil pH (r count -0.6309> r table -0.4973) has a strong relationship. The number of distribution of arbuscular mycorrhizae with soil pH (r count 0.5943> r table 0.4973) has a strong relationship

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THE DISTRIBUTION OF ORGANIC PHOSPHORUS IN BRITISH COLUMBIA SOILS AND ITS RELATIONSHIP TO SOIL CHARACTERISTICS

Canadian Journal of Soil Science ◽

10.4141/cjss65-011 ◽

1965 ◽

Vol 45 (1) ◽

pp. 87-95 ◽

Cited By ~ 2

Author(s):

M. K. John ◽

P. N. Sprout ◽

C. C. Kelley

Keyword(s):

Organic Phosphorus ◽

Chemical Properties ◽

The Other ◽

Organic P ◽

Significant Relationships ◽

P Content ◽

Wide Range ◽

Relationship Of ◽

The Relationship ◽

Total P

The relationship of organic phosphorus content to a number of chemical properties was studied in the surface horizons of 38 soils of six different soil orders in British Columbia.The concentration of organic P ranged from 1.8 to 77.7% of the total P with amounts varying from 21 to 802 p.p.m. The forested soils of the Podzolic and Brunisolic Orders contained the least organic P. However, the wide range in organic P content within some soil orders indicated that its distribution was not entirely characteristic of the soil order.Simple correlation studies between organic P and nitrogen, carbon, pH, per cent base saturation, total P, and free iron in all soils before assigning them to groups indicated that only nitrogen and carbon were significantly related to organic P. Significant relationships between the other variables and organic P were restricted to specific soil orders. The organic P content has been found to be primarily dependent on nitrogen and pH, since the inclusion of the other independent variables in the multiple regression did not significantly change the coefficient of determination.The range of C/organic P and N/organic P ratios for the 38 samples was between 46 and 648 and 5.5 to 57.6 respectively. Soil pH was the only variable studied which could account for the wide variation of these ratios.

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