Influence of Wood Vinegar and Potassium Application on Soil Properties and Ca/K Ratio in Citrus Rootstocks

Beach ridges interspersed with swales (BRIS) soil is identified as one of Malaysia's problematic soil since this type of soil contains a plethora portion of sand texture that contributes to water and nutrient leaching causes infertile soil. A polybag trial was conducted to evaluate the effects of wood vinegar and rice husk biochar on soil properties and growth performances of immature kenaf. The plant was arranged in a completely randomised design with four treatments and three replications. The factors taken for the experiment were four different media compositions, i.e., T1(control), T2(BRIS soil amended with wood vinegar, WV), T3(BRIS soil amended with rice husk biochar, RHB) and T4(BRIS soil amended with wood vinegar and rice husk biochar, WV+RHB). Rice husk biochar and a combination of wood vinegar with rice husk biochar significantly improved soil properties in terms of soil moisture content, organic matter, water retention and soil porosity, as well as significantly increased the kenaf stem diameter. However, there was no significant difference in plant height, number of leaves, leaves area and chlorophyll content on different treatments medium. In conclusion, the application of rice husk biochar and wood vinegar in this study enhanced BRIS soil properties and showed a positive effect on the growth of immature kenaf.

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Quantifying soil variability in GIS applications: II Spatial distribution of soil properties

International Journal of Geographical Information Systems ◽

10.1080/026937996137990 ◽

1996 ◽

Vol 10 (4) ◽

pp. 455-475 ◽

Cited By ~ 1

Author(s):

A. S. Rogowski

Keyword(s):

Spatial Distribution ◽

Soil Properties ◽

Soil Variability ◽

Gis Applications

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Effect of Methods and Interval Irrigation in Addition Soil Surface Mulching on Some Soil Properties and Production of Date Palm Phoenix dactylifera L. in South of Basrah 1- Moisture content and salt distribution in the soil

Basrah Journal of Agricultural Sciences ◽

10.33762/bagrs.2016.116191 ◽

2016 ◽

Vol 29 (1) ◽

pp. 154-171

Author(s):

Abdulrahman D. S. Alhamd ◽

Ali .H. Theyab

Keyword(s):

Moisture Content ◽

Soil Properties ◽

Date Palm ◽

Soil Surface ◽

Phoenix Dactylifera ◽

Phoenix Dactylifera L ◽

Salt Distribution

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KARAKTERISASI SIFAT FISIKA DAN KIMIA CUKA KAYU DARI TANDAN KOSONG KELAPA SAWIT

Jurnal Riset Industri Hasil Hutan ◽

10.24111/jrihh.v6i1.1223 ◽

2014 ◽

Vol 6 (1) ◽

pp. 35 ◽

Cited By ~ 1

Author(s):

Rizka Karima

Keyword(s):

Specific Gravity ◽

Physical Properties ◽

Solid Waste ◽

Ph Value ◽

Total Yield ◽

Chemical Properties ◽

Phenol Content ◽

Empty Fruit Bunches ◽

Wood Vinegar ◽

And Chemical Properties

There’s so many pal solid waste or palm empty fruit bunches, but the utilization is not maximized, this research its to optimized utilization of palm solid waste to be wood vinegar and want to know the composition physical properties and chemical properties of wood vinegar from palm empty fruit bunches. Total yield of wood vinegar from palm empty fruit bunches its 15,94 % and total yield of charcoal its 64,58 %. GCMS result showing chemical properties from wood vinegar of burning < 100oC its obtained 19 compound and burning >100 oC its obtained 6 compound. The result physichal properties testing from crued wood vinegar its obtained specific gravity 1,0005 and 1,0010, pH value are 3,233 and 3,186, TAT content are 9,36 % and 11,12 %, phenol content its 0,44 %. The result physical properties testing from wood vinegar which has decolorizatin by activated carbon its obtained specific gravity are 0,9987 and 0,999, pH value are 3,036 and 3,012, TAT content are 8,29 % and 9,27 % and phenol content its 0,01 %.Keywords: palm bunches, wood vinegar, liquid smoke

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DAYA TAHAN ROTAN YANG DIAWETKAN DENGAN CUKA KAYU GALAM TERHADAP SERANGAN BUBUK Dinoderus minutus Farb.

Jurnal Riset Industri Hasil Hutan ◽

10.24111/jrihh.v2i2.1141 ◽

2010 ◽

Vol 2 (2) ◽

pp. 8

Author(s):

Evy Setiawati

Keyword(s):

Force Feedback ◽

Test Results ◽

Dry Powder ◽

Degree Of Protection ◽

Wood Vinegar ◽

Dinoderus Minutus ◽

Test Parameters ◽

Feedback Method ◽

Reduction Percentage ◽

Insect Attack

Rattan on frequently attacked by the powder post beetle (Tellu, 2001). The prevention of dry powder attacks is done by preservation. The increasing resistant of rattan from insect attack can be done by an environmentally friendly preservative, the Galam wood vinegar. This research aims to determine the most effective concentration of preservative that shows the lowest attacks level of D. Farb minutus powder. The rattan used is green rattan (Calamus sp.) The concentration of preservative that are used:10%, 40%, 70% and 100%. The testing of dry powder attack used force feedback method. The effectiveness test parameters of wood vinegar to dry powder attacks included degree of protection Dinoderus minutus Farb. powder, reduction percentage of rattan weight and the mortality of dry powder Dinoderus sp for toxicological testing of wood vinegar. The test results showed that the degree of protection powder in rattan growing along with the increased concentration of preservatives. The higher the concentration of wood vinegar, the smaller the reduction of rattan weight and the higher the mortality rate of dry powder. Keywords: resistant of rattan, wood vinegar, Dinoderus minutus.

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Applying the Method of Lagrange Multipliers to Derive an Estimator for Unsampled Soil Properties

Scientific Research Journal ◽

10.24191/srj.v11i1.5416 ◽

2014 ◽

Vol 11 (1) ◽

pp. 15

Author(s):

Set Foong Ng ◽

Pei Eng Ch’ng ◽

Yee Ming Chew ◽

Kok Shien Ng

Keyword(s):

Soil Properties ◽

Lagrange Multipliers ◽

Unbiased Estimator ◽

Soil Property ◽

Minimum Variance ◽

Distance Method ◽

True Value ◽

A Site ◽

Method Of Lagrange Multipliers ◽

Inverse Distance

Soil properties are very crucial for civil engineers to differentiate one type of soil from another and to predict its mechanical behavior. However, it is not practical to measure soil properties at all the locations at a site. In this paper, an estimator is derived to estimate the unknown values for soil properties from locations where soil samples were not collected. The estimator is obtained by combining the concept of the ‘Inverse Distance Method’ into the technique of ‘Kriging’. The method of Lagrange Multipliers is applied in this paper. It is shown that the estimator derived in this paper is an unbiased estimator. The partiality of the estimator with respect to the true value is zero. Hence, the estimated value will be equal to the true value of the soil property. It is also shown that the variance between the estimator and the soil property is minimised. Hence, the distribution of this unbiased estimator with minimum variance spreads the least from the true value. With this characteristic of minimum variance unbiased estimator, a high accuracy estimation of soil property could be obtained.

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