Organic fertilization of olive tree based on soil analysis and foliar diagnosis: a case study of an olive orchard in the northwest of Tunisia

This research carried out in Huong Vinh commune, Huong Tra town, Thua Thien Hue province aimed to identify types of land use and soil characteristics. Results showed that five crops are found in Huong Vinh commune including rice, peanut, sweet potato, cassava and vegetable. There are two major soil orders with four soil suborders classified by FAO in Huong Vinh commune including Fluvisols (Dystric Fluvisols, Gleyic Fluvisols and Cambic Fluvisols) and Arenosols (Haplic Arenosols). The results from soil analysis showed that three soil suborders including Dystric Fluvisols, Gleyic Fluvisols and Cambic Fluvisols belonging to Fluvisols were clay loam in texture, low pH, low in OC, total N, total P2O5 and total K2O. Meanwhile, the Haplic Arenosols was loamy sand in texture, poor capacity to hold OC, total N, total P2O5 and total K2O

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Detection of Bactrocera oleae (Diptera: Tephritidae) DNA in the gut of the soil species Pseudoophonus rufipes (Coleoptera: Carabidae)

Spanish Journal of Agricultural Research ◽

10.5424/sjar/2018163-12860 ◽

2018 ◽

Vol 16 (3) ◽

pp. e1007

Author(s):

Alice Albertini ◽

Sónia A. P. Santos ◽

Fátima Martins ◽

José A. Pereira ◽

Teresa Lino-Neto ◽

...

Keyword(s):

Control Strategies ◽

Cost Effective ◽

Olive Tree ◽

Carabid Beetles ◽

Bactrocera Oleae ◽

Negative Effects ◽

Cytochrome Oxidase Subunit ◽

Mtdna Sequences ◽

Olive Orchard ◽

Control Service

Pest control service provided by natural enemies of Bactrocera oleae, the key pest of the olive tree, is nowadays recognized as fundamental. B. oleae has developed resistance to common insecticides, and negative effects both on consumers’ health and non-target species are the major drawbacks of conventional control strategies. Carabid beetles are potential B. oleae pupae predators, but their predation on field still need to be assessed. We tested adult Pseudoophonus rufipes, a species known to be active in olive orchard when pest pupae are abundant in the soil, in order to detect B. oleae pupae consumption at different post feeding times for both male and female carabids. An already existing protocol was used for detecting B. oleae mtDNA sequences of the cytochrome oxidase subunit I gene in carabids’ gut, and its versatility improved. B. oleae mtDNA was detected up to 20 h after pupa ingestion with a high percentage of success, without significant differences between sexes and pair primers used. Prey DNA extraction was tested from both dissected and non-dissected carabids, obtaining comparable results. The trapping system used to collect carabids for molecular assays and the new elements introduced in the protocol represent cost-effective solutions that may be beneficial for future laboratory trials and, mostly, for the analysis of field-collected predators. Fostering the investigation of soil predators in olive orchard may increase the design of conservation control strategies against B. oleae.

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A Standardized Method for Estimating the Functional Diversity of Soil Bacterial Community by Biolog® EcoPlatesTM Assay—The Case Study of a Sustainable Olive Orchard

Applied Sciences ◽

10.3390/app9194035 ◽

2019 ◽

Vol 9 (19) ◽

pp. 4035 ◽

Cited By ~ 6

Author(s):

Adriano Sofo ◽

Patrizia Ricciuti

Keyword(s):

Bacterial Community ◽

Functional Diversity ◽

Soil Bacterial Community ◽

Step Method ◽

Olive Orchard ◽

Correct Definition ◽

Standardized Method ◽

Soil Bacterial ◽

Sustainable Conservation

Biolog® EcoPlates™ (Biolog Inc., Hayward, CA, USA) were developed to analyse the functional diversity of bacterial communities by means of measuring their ability to oxidize carbon substrates. This technique has been successfully adopted for studying bacterial soil communities from different soil environments, polluted soils and soils subjected to various agronomic treatments. Unfortunately, Biolog® EcoPlates™ assay, especially working on soil, can be difficult to reproduce and hard to standardize due to the lack of detailed procedures and protocols. The main problems of this technique mainly regard soil preparation, bacterial inoculum densities and a correct definition of blank during the calculation of the diversity indices. On the basis of our previous research on agricultural soils, we here propose a standardized and accurate step-by-step method for estimating the functional diversity of a soil bacterial community by Biolog® EcoPlatesTM assay. A case study of soils sampled in a Mediterranean olive orchard managed accordingly to sustainable/conservation practices was reported for justifying the standardized method here used. The results of this methodological paper could be important for correctly evaluating and comparing the microbiological fertility of soils managed by sustainable/conservation or conventional/non-conservation systems.

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pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France)

Minerals ◽

10.3390/min10080724 ◽

2020 ◽

Vol 10 (8) ◽

pp. 724

Author(s):

Bruno Lemière ◽

Jeremie Melleton ◽

Pascal Auger ◽

Virginie Derycke ◽

Eric Gloaguen ◽

...

Keyword(s):

Soil Analysis ◽

Mineral Exploration ◽

Sample Selection ◽

Cost Effective ◽

Selective Sampling ◽

Humic Horizon ◽

Laboratory Investigations ◽

Selection For ◽

Dynamic Sampling

Mineral exploration is increasingly challenging in inhabited areas. To evaluate the potential of soil analysis by pXRF (portable X-ray fluorescence) as a low-footprint exploration technique, we revisited a historic Sb district in an agricultural area and performed shallow-soil sampling (Ah and B horizons) along profiles across known veins to capture the endogenic geochemical anomaly signals. Despite an expected bias between pXRF measurements and laboratory analyses, the former effectively located the Sb veins, especially when using their multi-element capabilities. Composition data processing (CoDa) and horizon-selective sampling significantly improved the method’s efficiency. On-site measurements allow dynamic sampling and mapping, helping with faster, cost-effective sample selection for further laboratory investigations. Based on this case study, where similar geochemical patterns were obtained for both horizons, application of an on-site approach to a humic horizon can increase survey efficiency and decrease impacts.

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The Opportunity of Understorey Species to Absorb Secondary Metabolites in the Soil (Case Study in IUPHHK- Industrial Plantation Forests PT. Toba Pulp Lestari, Tbk)

Journal of Sylva Indonesiana ◽

10.32734/jsi.v3i01.1982 ◽

2020 ◽

Vol 3 (01) ◽

pp. 40-45

Author(s):

Simon Sidabukke ◽

Ternala Alexander Barus ◽

Budi Utomo ◽

Delvian ◽

Mona Fhitri Srena

Keyword(s):

Secondary Metabolites ◽

Secondary Metabolism ◽

Soil Analysis ◽

Vegetation Analysis ◽

Plantation Forests ◽

Industrial Plantation ◽

Species Area ◽

North Sumatra ◽

Industrial Forestry

PT. Toba Pulp Lestari, Tbk is one of the industrial forestry companies with Eucalyptus as the main species. This research was conducted in a concession area located in Aek Nauli Plantation, Simalungun Regency, North Sumatra with an area of 22,533 Ha. The sample of this research is understorey species (height: 1.5 meters) under Eucalyptus stand in cycles 2, 3, 4 and 5 planted in 2015. To find out the composition of plant species, vegetation analysis was conducted initially by making minimum species-area curves to determine the number of plots. The placement of the sample starts with randomly distributed on plotted paths. The number of plots in each cycle is as many as 32 plots, 32 plots, 32 plots, 4 plots by 256 plots and 5 plots for 32 plots. The results of soil analysis found that secondary metabolic in eucalyptus soil classified into terpenoid which located at a distance of 50 cm (flat) and 100 cm (flat) from the tree at 2 years old Eucalyptus stand. The terpenoids also distributed in distance of 50 cm from trees with flat topography on 4 years old Eucalyptus stand. For 6 years old Eucalyptus stand, terpenoid distributed on 150 cm from a tree and there was also a saponin within 150 cm from a tree with sloping topography. If the dominant undergrowth grows were Strong and Senduduk, the secondary metabolism in the soil will be absorbed by this species.

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Investigation of Utilizing Coffee Commodities toward Land Suitability, Case Study: Mane Village, Aceh Province

International Journal of Multicultural and Multireligious Understanding ◽

10.18415/ijmmu.v6i3.857 ◽

2019 ◽

Vol 6 (3) ◽

pp. 608

Author(s):

Muhammad Akbar ◽

Abubakar Karim ◽

Sugianto Sugianto

Keyword(s):

Tropical Forests ◽

Coffea Arabica ◽

Soil Analysis ◽

Coffea Canephora ◽

Land Suitability ◽

Robusta Coffee ◽

Aceh Province ◽

Coffee Plants ◽

Slope Class

The characteristics of tropical forests in Indonesia produce various types of plants that can be used to improve the economic sector of the surrounding communities. The study is carried out on several suitable plants to be cultivated. Coffee plants such as Arabica Coffee (Coffea arabica) and Robusta coffee (Coffea Canephora) are one of them. It will be conducted to figure out whether coffee plants are sufficiently feasible to be cultivated especially in Mane Village, Aceh Province, which is the location of the research. Feasibility of coffee plants is reviewed from soil analysis based on the soil research center (1983), land suitability and slope class. The results show that coffee plants are feasible to be used as one of the potential cultivated commodities.

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