+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Evaluation of available phosphorus and potassium in soil using a common extractant

Evaluation of available phosphorus and potassium in soil using a common extractant

Agricultural Research Journal of Kerala 24(2): 151-162

A laboratory evaluation and an uptake study Neubauer seedling technique was carried out for evolving a single common extractant suitable for extracting available P and available K so as to simplify the process of extracting these available plant nutrients in soil testing work. The study was conducted in three phases, viz., an initial study, preliminary screening and a final selection using different extractants. The triacid (0.06 N H2SO4 + 0.05 N HCl + 0.05 N oxalic acid) with a soil solution ratio of 1:10 and equilibration period of 30 min was found to give very good correlation with Bray No. 1 P and NH4OAc (std) K and this extractant can be recommended for different soils of the state.

(PDF emailed within 1 workday: $29.90)

Accession: 001589194

Download citation: RISBibTeXText

Related references

New extractant for soil test evaluation of phosphorus potassium magnesium calcium sodium manganese and zinc. Communications in Soil Science and Plant Analysis 9(6): 477-492, 1978

A common extractant for the determination of available phosphorus oxide and potassium oxide in the acid soils of karnataka india. Journal of the Indian Society of Soil Science 37(1): 66-69, 1989

The effect of soil moisture content, temperature of extractant and time of sampling on phosphorus and potassium extractable from soils cropped to sugar cane In Louisiana. Bull. La agric. Exp. Stn, 621, 27, 1967

Evaluation of a common extractant for estimating available iron manganese zinc and copper in soil. Journal of the Indian Society of Soil Science 32(2): 309-312, 1984

Studies on the dynamics of phosphorus and potassium in soil. III. Experiments on phosphorus and potassium fixation. IV. Forms of phosphorus and potassium extracted by ammonium acetate. Pedologie, 14: 36-54, 1964

The aim of determination of assimilable phosphorus in the soil. Introduction to the study of the influence of the pH of the extractant on the content of phosphorus extracted.. An. Primeira Reun. Brasil Ciene. Solo, 1950. 281-287, 1950

Study on the suitable phosphorus extractant for phosphorus availability indices in Ayutthaya lowland soil series in Great Mae Klong basin. Proceedings of 41st Kasetsart University Annual Conference, 3-7 February, 2003 Subject: Plants and Agricultural Extension and Communication: 93-100, 2003

Evaluation of Mehlich 3 extractant for estimating phosphorus deficiency and phosphorus sorption of Zimbabwean soils. Communications in Soil Science & Plant Analysis 24(11-12): 1397-1408, 1993

Effect of large doses of phosphorus and potassium fertilization on the available phosphorus and potassium content of soil, on wheat yield, and on the cellulolytic activity of soil. 1978

Response of table beets (Beta vulgaris L.) to banded fertilizer phosphorus and potassium at different levels of soil phosphorus and potassium in a heavily fertilized Honeoye silt loam soil. Proc. Soil Sci. Soc. Amer, 29: 417-20. bibl. 5, 1965

Evaluation of phosphorus fractions contributing to available phosphorus extracted by some common soil test methods. Journal of the Indian Society of Soil Science 25(2): 150-154, 1977

Anionic paper as an extractant of available soil phosphorus. Revista Brasileira de Ciencia do Solo 17(3): 417-422, 1993

Basic EDTA as an extractant for soil organic phosphorus. Soil Science Society Of America Journal. 57(6): 1516-1518, 1993

The use of a bicarbonate extractant-soil phosphorus test in south western Victoria. Sectional Papers International Grassland Congress: 2th (sect 3, pt 2) 489-494, 1974

Determination of Appropriate Soil Test Extractant for Available Phosphorus in Southwestern Nigerian Soils. Communications in Soil Science and Plant Analysis 44(10): 1540-1556, 2013