Comparison Of Three Soil Test Methods For Estimating Plant-available Silicon

2003 ◽  
Vol 34 (15-16) ◽  
pp. 2059-2071 ◽  
Author(s):  
Luciana de Lima Rodrigues ◽  
Samira H. Daroub ◽  
Ron W. Rice ◽  
George H. Snyder
Keyword(s):  
Test Methods ◽  
Soil Test

scholarly journals Interlaboratory comparison of soil phosphorus extracted by various soil test methods

2001 ◽  
Vol 32 (15-16) ◽  
pp. 2325-2345 ◽  
Author(s):  
Peter J. A. Kleinman ◽  
A. N. Sharpley ◽  
K. Gartley ◽  
W. M. Jarrell ◽  
S. Kuo ◽  
...  
Keyword(s):  
Interlaboratory Comparison ◽  
Soil Phosphorus ◽  
Test Methods ◽  
Soil Test

Phosphorus Extraction with Soil Test Methods Affected by Soil P Sorption Capacity

2020 ◽  
Vol 20 (4) ◽  
pp. 1882-1890 ◽  
Author(s):  
Gilmar Luiz Mumbach ◽  
Luciano Colpo Gatiboni ◽  
Daniel João Dall’Orsoletta ◽  
Djalma Eugênio Schmitt ◽  
Patrícia Pretto Pessotto ◽  
...  
Keyword(s):  
Sorption Capacity ◽  
Test Methods ◽  
Soil Test ◽  
Soil P ◽  
P Sorption ◽  
P Sorption Capacity ◽  
Phosphorus Extraction

Evaluation of some soil test methods in acid soils for available phosphorus for pea of Senapati district of Manipur (India)

2016 ◽  
Vol 9 (1) ◽  
pp. 63 ◽  
Author(s):  
Haribhushan Athokpam ◽  
Goutam Kumar Ghosh ◽  
Herojit Singh Athokpam ◽  
Shabir Hussain Wani ◽  
Somorjit Akoijam ◽  
...  
Keyword(s):  
Acid Soils ◽  
Test Methods ◽  
Available Phosphorus ◽  
Soil Test

scholarly journals The Liquid and Plastic Limit Data Treated System Based on VC++

2013 ◽  
Vol 347-350 ◽  
pp. 3039-3043
Author(s):  
Xiao Dong Zhang ◽  
Jian Qiao Li ◽  
Rui Yang Shi ◽  
Meng Zou ◽  
Yang Wang ◽  
...  
Keyword(s):  
Analytical Method ◽  
High Efficiency ◽  
Object Oriented ◽  
Test Methods ◽  
Visual Programming ◽  
Soil Test ◽  
Graphic Method ◽  
Plastic Limit ◽  
Combined Test ◽  
Nested Structure

According to two standards for soil test methods with liquid and plastic limit combined test, a liquid and plastic limit data treated system was developed using object-oriented visual programming Microsoft Visual C++6.0 based on analytical method. The flow char indicated that programs of the system used select structure and its nested structure as main its algorithm. Contrasted with manual graphic method, the liquid and plastic limit data treated system had high efficiency and reliable accuracy.

Effect of soil temperature and moisture on soil test P with different extractants

2012 ◽  
Vol 92 (3) ◽  
pp. 537-542 ◽  
Author(s):  
Chunyu Song ◽  
Xingyi Zhang ◽  
Xiaobing Liu ◽  
Yuan Chen
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Test Methods ◽  
Soil Test ◽  
Soil P ◽  
Soil P Test ◽  
Soil Test P ◽  
Fertilization Level ◽  
Bray 1 ◽  
Soil Temperature And Moisture

Song, C., Zhang, X., Liu, X. and Chen, Y. 2012. Effect of soil temperature and moisture on soil test P with different extractants. Can. J. Soil Sci. 92: 537–542. Temperature and moisture are important factors affecting adsorption, transformation and the availability of soil phosphorus (P) to plants. The different temperatures and moisture contents at which soil is sampled might affect the results of soil test P (STP). In order to evaluate the effect of the temperature and moisture, as well as the fertilization level, on the results of soil test P, an incubation study involving three soil temperatures (5, 10, and 20°C), and three soil moisture contents (50, 70, 90% of field water-holding capacity) was conducted with Chinese Mollisols collected from four fertilization treatments in a long-term experiment in northeast China. Four soil P test methods, Mehlich 3, Morgan, Olsen and Bray 1 were used to determine STP after a 42-d incubation. The effect of temperature and moisture on STP varied among soil P tests. Averaged across the four fertilization treatments, the temperature had significant impact on STP, while the responses varied among soil P test methods. Mehlich 3, Morgan and Bray 1 STP decreased and Olsen STP increased with increase in temperature. Effect of soil moisture was only significant for Mehlich 3 P and Olsen P. Soil temperature had greater impact on STP than soil moisture content. The responses of the Olsen method to temperature differed from the other three methods tested. The interaction between soil temperature and soil moisture on soil test P was only significant for Mehlich 3 P. Fertilization level does not affect the STP in as a clear pattern as the temperature and moisture varied for all four methods. Consistent soil sampling conditions, especially the soil temperature, appear to be the first step to achieve a reliable STP for any soil P test.

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