scholarly journals Study of the Physical Aspects of Residential Soils of Iranduba - AM

2019 ◽  
Vol 7 (10) ◽  
pp. 82-89
Author(s):  
Rômulo De Araújo Reis ◽  
Bruna Moraes de Oliveira ◽  
Lívia Da Silva Oliveira ◽  
David Barbosa de Alencar
Keyword(s):  
Moisture Content ◽  
High Precision ◽  
Specific Weight ◽  
Soil Samples ◽  
Grain Weight ◽  
Physical Characterization ◽  
Saturation Degree ◽  
Standard Procedures

The objective of this work is to study the physical indices of soil samples collected in different points of the municipality of Iranduba - Am. The parameters analyzed were moisture content, porosity, aeration degree, specific weight among others. For the physical characterization of the soil, samples with deformed structure were collected, prepared according to procedures described in the standard procedures described by the NBR 6457 standard (ABNT, 1986). The tests were performed using a high precision glass pycnometer. The tests resulted in samples with high voids and porosity, lower values ​​of saturation degree as their low percentage. The specific grain weight presented satisfactory results meeting the criteria established by the standard.

scholarly journals Commercial Production and Chemical/Physical Characterization of Natural and Nutritious Coconut Sap Food Products (Cocosap Juice and Cocosap Concentrate) at Tawan-tawan, Baguio District, Davao City, Southern Mindanao, Philippines

CORD ◽  
2008 ◽  
Vol 24 (1) ◽  
pp. 18
Author(s):  
Millicent I. Secretaria
Keyword(s):  
Chemical Analysis ◽  
Moisture Content ◽  
Crude Protein ◽  
Food Products ◽  
Commercial Production ◽  
Physical Characterization ◽  
Net Income ◽  
Color Analysis ◽  
Partial Budgeting

The processing of natural and nutritious coconut sap juice and coconut sap concentrate for commercial production was conducted by the members of the Samahang Magniniyugan ng Tawan-tawan (SMT) at Barangay Tawan-tawan, Baguio District, Davao City, Southern Mindanao, Philippines from February to May, 2007. The processing of coconut sap juice and concentrate involves simple, easy to follow procedures and few equipment are required.  Results of the chemical analysis revealed that coconut sap juice, an oyster-white liquid and coconut sap concentrate, a sticky, golden orange syrup has 84.3% and 25% moisture content; 0.24% and 0.94% crude protein; 18.99 and 63.79 mg/100 mg sodium (Na); 0.85 and 1.51 mg/100 g calcium (Ca) and 0.05 and 0.33 mg/100g iron (Fe), respectively indicating that these coconut sap food products are nutritious and good for one’s body. While physical (color) analysis showed that these products are pure and natural since no food coloring was detected. A partial budgeting analysis on the profitability of producing coconut sap juice and coconut sap concentrate over the traditional fermented toddy indicated an additional profit or net income of Php19,728.00 and Php21,402.00 per month, respectively (Php41= $).  The benefits derived from the commercialization of the technology on coconut sap food products by the adaptors were discussed. Factors for successful adoption and commercialization of coconut sap juice and concentrate were likewise recommended.

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

PENGEMBANGAN TEKNOLOGI SELEKSI IN VITRO BERULANG (REPEAT CYCLING–IN VITRO SELECTION) TOLERAN STRES KEKERINGAN UNTUK PERBAIKAN MUTU GENETIK DAN PRODUKSI TANAMAN KEDELAI BERMIKORIZA

2017 ◽  
Vol 1 (1) ◽  
pp. 74-84
Author(s):  
Ahmad Riduan ◽  
Rainiyati Rainiyati ◽  
Yulia Alia
Keyword(s):  
Arbuscular Mycorrhizae ◽  
In Vitro Selection ◽  
Soil Samples ◽  
Single Spore ◽  
Isolation And Characterization ◽  
Single Spore Culture ◽  
Spore Culture ◽  
Glomus Sp

Every plant rhizospheres in any ecosystem there are various living microorganisms including Arbuscular Mycorrhizae Fungi (AMF).  An isolation and characterization is required to investigate the species or type of the AMF. This research was aimed at studying the isolation and characterization of AMF sporulation in soybean rhizospheres in Jambi Province. The results of evaluation on soil samples before trapping showed that there are spores from three genus of AMF twelve types Glomus , two types Acaulospora and one type of Enthrophospora.  Following single spore culture in soybean rhizosphere, 5 spore types were obtained:  Glomus sp-1, Glomus sp-4, Glomus sp-7, Glomus sp-8 Glomus sp-10.

Sign in / Sign up

Export Citation Format

Share Document