COMPARATIVE STUDY OF THE DIFFERENT TYPES OF ORGANIC FERTILIZERS INFLUENCE ON THE CONTENT OF HUMUS IN TECHNOLOGICALLY DISTURBED LIGHT GRAY FOREST LIGHT LOAMY SOIL
Rubrics: AGRICULTURAL ECONOMICS AND POLICIES
Authors:
1.
Nizhny Novgorod State Agricultural Academy
2.
Nizhny Novgorod State Agricultural Academy
3.
Nizhny Novgorod State Agricultural Academy
Type:
Article
eLocation:
Status:
Published
Received:
06.03.2019
Accepted:
15.03.2019
Published:
25.03.2019
Language:
Russian
Keywords:
mechanical disturbance of soils, light gray forest light loamy soil, organic fertilizers, humus.
Abstract (English):
Mechanical mixing of the arable and subsurface layers of light gray forest light loamy soil in a 1:3 ratio leads to the fact that it significantly reduces fertility by the content of organic matter - by 64.7% compared to the corresponding characteristics of the arable layer of the background soil. To restore the fertility of the disturbed soil with its content under the cultural cenosis with a very high projective cover (about 80-95%) and with two years of green manure application, but without fertilizer and agricultural amelioration (control version) for 6 years of observations failed. The application of cattle manure at a dose of about 100 t/ha leads to an improvement in the basic agrochemical indicators of the soil to the “insignificant decrease in fertility” characteristic of the humus content after 5 years. By the effectiveness of the impact on the content of humus in the soil, the studied organic fertilizers can be arranged in the following order in descending order: cattle manure half-subdued <straw-dung and peat-manure composts <straw of spring grains <peat transitional.
Mechanical mixing of the arable and subsurface layers of light gray forest light loamy soil in a 1:3 ratio leads to the fact that it significantly reduces fertility by the content of organic matter - by 64.7% compared to the corresponding characteristics of the arable layer of the background soil. To restore the fertility of the disturbed soil with its content under the cultural cenosis with a very high projective cover (about 80-95%) and with two years of green manure application, but without fertilizer and agricultural amelioration (control version) for 6 years of observations failed. The application of cattle manure at a dose of about 100 t/ha leads to an improvement in the basic agrochemical indicators of the soil to the “insignificant decrease in fertility” characteristic of the humus content after 5 years. By the effectiveness of the impact on the content of humus in the soil, the studied organic fertilizers can be arranged in the following order in descending order: cattle manure half-subdued <straw-dung and peat-manure composts <straw of spring grains <peat transitional.
Keywords:
mechanical disturbance of soils, light gray forest light loamy soil, organic fertilizers, humus.
mechanical disturbance of soils, light gray forest light loamy soil, organic fertilizers, humus.
