THE NATURE OF THE NITROGEN COMPOUNDS IN SOIL ORGANIC MATTER EXTRACTED BY ANHYDROUS FORMIC ACID

1972 ◽  
Vol 23 (2) ◽  
pp. 128-134 ◽  
Author(s):  
M. J. JONES ◽  
J. W. PARSONS
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Formic Acid ◽  
Nitrogen Compounds ◽  
Anhydrous Formic Acid

scholarly journals MICROBIOLOGICAL PROCESSES IN FALLOW LANDS OF DIFFERENT AGE

2012 ◽  
Vol 15 ◽  
pp. 71-82
Author(s):  
I.M. Malynovska
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Nitrogen Compounds ◽  
Low Level ◽  
Microbiological Processes ◽  
Soil Deposits ◽  
Fallow Lands ◽  
Mineralization Of Organic Matter

The orientation of microbiological processes in soil deposits of various ages: two, nine and twenty two years old in comparison with agrozems was studied. It was found that with the increase of the deposits age the intensity of the development of soil organic matter, humus mineralization activity and phytotoxicity was lower. Intensive agrozem was characterized with higher activity mineralization of organic matter, nitrogen compounds and a low level of mineralization of humus and phytotoxicity compared with the extensive agrozems.

scholarly journals MICROBIOLOGICAL PROCESSES IN THE ROOT ZONE OF PEA AND WINTER WHEAT PLANTS AT CULTIVATION IN MONOCULTURE AND FOUR FIELD CROP ROTATION

2012 ◽  
Vol 14 ◽  
pp. 77-90
Author(s):  
I.M. Malinovskaya ◽  
D.V Litvinov
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Winter Wheat ◽  
Crop Rotation ◽  
Root Zone ◽  
Crop Rotations ◽  
Mineral Fertilizers ◽  
Nitrogen Compounds ◽  
Field Crop ◽  
Microbiological Processes

The peculiarities of various microbiological processes at cultivation of winter wheat and pea crops in the permanent and short crop rotations were studied in stationary experiments. It was established that the cultivation of wheat in a monoculture results in intensification of consumption of soil organic matter as compared to the crop rotations: without applications mineral fertilizers on 52,2 %, with mineral fertilizers – on 77,8 %; increase of humus mineralization: without fertilizer on 111 %, with fertilizer (N60P60K60) – on 15 %; and activation of mineralization of nitrogen compounds on 100 and 60,0 %, respectively. Cultivation of peas in a monoculture was also accompanied by intensification of soil organic matter development: without the application of mineral fertilizers by 3,17 times, with mineral fertilizers – by 1,79 times; increase of humus mineralization by 1,73 and 1,88 times, respectively; and activation of mineralization of nitrogen compounds by 2,38 and 1,88 times, respectively. The decrease of humus mineralization activity in the root zone of pea plants as comparing to the wheat was at 45,7 % (monoculture), 19,2 % (crop rotation) and 46,9 % (crop rotation, NPK) levels.

Sign in / Sign up

Export Citation Format

Share Document