Add to ORKGA comparison was made of glass and quinhydrone electrodes for determining the pH of some Iowa soils. Particular attention was given to the QH error and the QH electrode error, and also to any changes in the hydrogen-ion concentration of the soil as it is permitted to stand in contact with water. The modified bulb, silver-silver chloride type of glass electrode and the ordinary type of platinum electrode with quinhydrone were employed in making the determinations
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
The thesis describes the work done in connections with the following Physico-Chemical investigations...
A comparison was made of glass and quinhydrone electrodes for determining the pH of some Iowa soils....
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
A system of Qualitative Analysis is presented in which ammonium sulfide instead of hydrogen sulfide ...
A system of Qualitative Analysis is presented in which ammonium sulfide instead of hydrogen sulfide ...
During the past 20 years an investigation has been underway to determine the nitrogen, phosphorus an...
During the past 20 years an investigation has been underway to determine the nitrogen, phosphorus an...
This investigation was undertaken to determine the methods best suited for the routine measurement o...
This investigation was undertaken to determine the methods best suited for the routine measurement o...
Nitrogen, phosphorus, potassium, silica, iron, alumina, and base-exchange capacity were determined o...
Nitrogen, phosphorus, potassium, silica, iron, alumina, and base-exchange capacity were determined o...
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
The thesis describes the work done in connections with the following Physico-Chemical investigations...
A comparison was made of glass and quinhydrone electrodes for determining the pH of some Iowa soils....
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
During the past decade the quinhydrone electrode has been used extensively for determining the hydro...
A system of Qualitative Analysis is presented in which ammonium sulfide instead of hydrogen sulfide ...
A system of Qualitative Analysis is presented in which ammonium sulfide instead of hydrogen sulfide ...
During the past 20 years an investigation has been underway to determine the nitrogen, phosphorus an...
During the past 20 years an investigation has been underway to determine the nitrogen, phosphorus an...
This investigation was undertaken to determine the methods best suited for the routine measurement o...
This investigation was undertaken to determine the methods best suited for the routine measurement o...
Nitrogen, phosphorus, potassium, silica, iron, alumina, and base-exchange capacity were determined o...
Nitrogen, phosphorus, potassium, silica, iron, alumina, and base-exchange capacity were determined o...
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
Phosphorus is one of the primary elements essential for plant growth. Recently, Fried and Dean have ...
The thesis describes the work done in connections with the following Physico-Chemical investigations...