SU410303A1 - - Google Patents

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Publication number
SU410303A1
SU410303A1 SU1746944A SU1746944A SU410303A1 SU 410303 A1 SU410303 A1 SU 410303A1 SU 1746944 A SU1746944 A SU 1746944A SU 1746944 A SU1746944 A SU 1746944A SU 410303 A1 SU410303 A1 SU 410303A1
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SU
USSR - Soviet Union
Prior art keywords
soil
filter paper
content
ammonium
analysis
Prior art date
Application number
SU1746944A
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Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1746944A priority Critical patent/SU410303A1/ru
Application granted granted Critical
Publication of SU410303A1 publication Critical patent/SU410303A1/ru

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Description

Изобретение относитс  к агрохимическим исследовани м и может быть использовано дл  определени  содержани  подвижного фосфора в почве в полевых услови х.The invention relates to agrochemical studies and can be used to determine the content of mobile phosphorus in the soil in field conditions.

Известен способ определенн  содержани  подвижного фосфора в почве в услови х стационарной лаборатории, включающий получение почвенной выт жки и колориметрирование .A known method for determining the content of mobile phosphorus in the soil under the conditions of a stationary laboratory, including obtaining soil stretching and colorimetry.

Недостатки этого способа - длительность проведени  анализа и невозможность его осуществлени  в полевых услови х.The disadvantages of this method are the duration of the analysis and the impossibility of its implementation in the field.

Цель изобретени -ускорить проведение анализа и получить результаты в нолевых услови х.The purpose of the invention is to speed up the analysis and obtain results under zero conditions.

Это достигаетс  тем, что на почвенную пасту , смоченную молибденовокислым аммонием , накладывают фильтровальную бумагу и пропускают через почву электрический ток, а колометрирование провод т сравнением окращенной хлоридом олова фильтровальной бумаги с эталоном.This is achieved by applying filter paper to soil paste moistened with ammonium molybdate acid and electric current is passed through the soil, and colorimetration is carried out by comparing filter paper cut with tin chloride with a standard.

В специальный малогабаритцый прибор, имеющий стабилизатор напр жени , вольтметр , реле времени, электрические батареи а сосуд-анализатор, в который вмонтированы титановый и графитовый электроды, помещают 10 г сухой почвы. Почва переводитс  в почвенную пасту путем смачивани  ее 4 мл 0,14%A special small-sized device with a voltage stabilizer, a voltmeter, a time relay, electric batteries and an analyzer vessel in which titanium and graphite electrodes are mounted are placed 10 g of dry soil. The soil is transferred to a soil paste by wetting it with 4 ml of 0.14%.

раствора молноденовокислого аммони  в серной кислоте. На полученную насту накладывают двухслойную фильтровальную бумагу. Затем закрывают крышку прибора, включают электрический ток и реле временп. Через 30 сек прибор автоматически выключаетс . Фильтровальную бумагу обрабатывают хлоридом олова, в результате чего фосфоромолибдатный комплекс на бумаге окрашиваетс .solution of light-ammonium ammonium in sulfuric acid. On the resulting Nastu impose a two-layer filter paper. Then close the lid of the device, turn on the electric current and time relay. After 30 seconds, the device automatically turns off. The filter paper is treated with tin chloride, with the result that the phosphomolybdate complex stains on paper.

Полученный цвет фильтровальной бумагн сравнивают с цветной шкалой стандартных растворов, выполненных из расчета содерлсани  РаОб в мг на 100 г ночвы.The resulting color of the filter paper is compared with the color scale of standard solutions, calculated on the basis of the content of PaOb in mg per 100 g of night.

Предмет изобретени Subject invention

Способ определени  содержани  подвижного фосфора в ночве, включающий получение почвенной выт жки и колориметрнрованне, отличающийс  тем, что, с целью ускорени  анализа и возможности получени  результатов в полепых условн х, на, почвенную плету, смоченную молнбдсрювокнслым аммоннем , накладывают фильтровальную бумагу и нронуокают через почву электрический ток, колори.метрирование провод т сравнением окращенной хлоридом олова фильтровальной бумаги с эталоном.The method of determining the content of mobile phosphorus in the night, including obtaining soil stretching and colorimetric, characterized in that, in order to speed up the analysis and the possibility of obtaining results in field conditions, a filter paper and soil are applied to the soil using a lightning layer with ammonium layer. electric current, colorimetric measurement is carried out by comparing filter paper cut with tin chloride with a standard.

SU1746944A 1972-02-11 1972-02-11 SU410303A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1746944A SU410303A1 (en) 1972-02-11 1972-02-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1746944A SU410303A1 (en) 1972-02-11 1972-02-11

Publications (1)

Publication Number Publication Date
SU410303A1 true SU410303A1 (en) 1974-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1746944A SU410303A1 (en) 1972-02-11 1972-02-11

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SU (1) SU410303A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2468365C2 (en) * 2011-02-24 2012-11-27 Государственное научное учреждение Всероссийский научно-исследовательский институт агрохимии им. Д.Н. Прянишникова Российской Академии сельскохозяйственных наук Method of obtaining soil extract with subsequent chemical composition analysis thereof and apparatus for realising said method
CN106706615A (en) * 2016-11-30 2017-05-24 马健 Method of measuring available phosphorus of acidic soil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2468365C2 (en) * 2011-02-24 2012-11-27 Государственное научное учреждение Всероссийский научно-исследовательский институт агрохимии им. Д.Н. Прянишникова Российской Академии сельскохозяйственных наук Method of obtaining soil extract with subsequent chemical composition analysis thereof and apparatus for realising said method
CN106706615A (en) * 2016-11-30 2017-05-24 马健 Method of measuring available phosphorus of acidic soil

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