EFFICIENCY OF PHOSPHOGYPSUM APPLICATION ON SOD-PODZOLIC SOIL IN CROP ROTATION WITH POTATOES
Rubrics: AGRICULTURE
Authors:
1.
Federal State Budgetary Scientific Institution «All-Russian Scientific Research Institute for potato farms named after A. G. Lorkh»
(Department Agrochemistry and Biochemistry, Head of the Department)
Lyubereckiy rayon, Moscow, Russian Federation
Lyubereckiy rayon, Moscow, Russian Federation
2.
FSBSI «All-Russian research Institute of Agrochemistry»
(laboratory of agrochemical ensure coordinate agriculture, chief researcher)
Moskva, Moscow, Russian Federation
Moskva, Moscow, Russian Federation
3.
Federal State Budgetary Scientific Institution «All-Russian Scientific Research Institute of Agrochemistry named after D. N. Pryanishnikov»
(Postgraduate Student)
graduate student
Russian Federation
graduate student
Russian Federation
Type:
Article
Pages:
from 41
to 50
Status:
Published
Received:
14.05.2019
Accepted:
20.05.2019
Published:
20.05.2019
Subject area:
UDK 63 Сельское хозяйство. Лесное хозяйство. Охота. Рыбное хозяйство
Language:
Russian, English
Keywords:
phosphogypsum, potatoes, barley, quality, phosphorus, acidity, fertility
Abstract (English):
The research is aimed to improve the agrochemical properties of sod-podzolic soil and increase the productivity of crop rotation with potatoes. The decrease in the mineral and organic fertilizers use in Non-Chernozem zone of Russia leads to low yields of potato tubers and worse agrochemical properties of sod-podzolic soils. Agronomical positive and ecologically safe effects of phosphogypsum on physical and chemical properties of sod-podzolic sandy soil and formation of productivity and quality of potato and spring barley was revealed. With the introduction of phosphogypsum, on average for 3 years, the soil received (kg S/ha per year): with a dose of 0.5 t/ha +35.1, with a dose of 1.0 t/ha +57.6, with a dose of 1.5 t/ha +79.8 and against a background of 3.0 t/ha +105.6, which led to an increase in the content of salpho in the soil, respectively, introduced doses of meliorant – by 9.7, 17.5, 26.5 and 32.9 mg S/kg compared to the initial level. A single application of phosphogypsum to sod-podzolic soil provided an increase in the content of labile phosphorus by 72 and 40 mg/kg against the background of doses of 1.5 and 3.0 t/ha. The As-sessment of the possible toxicity of phosphogypsum showed that the ratio of Ca/Sr in the soil is at a safe level and amounted to 97 in the control variant, against the background of doses of phosphogypsum 0.5, 1.0 and 1.5 t/ha – 104-117. In total, for three years of research, the use of meliorant provided an increase in the productivity of potato – barley – potato crop rotation by 30-38 kg of grains units/ha or 19-24% in comparison with the option where only NPK fertilizers were used.
The research is aimed to improve the agrochemical properties of sod-podzolic soil and increase the productivity of crop rotation with potatoes. The decrease in the mineral and organic fertilizers use in Non-Chernozem zone of Russia leads to low yields of potato tubers and worse agrochemical properties of sod-podzolic soils. Agronomical positive and ecologically safe effects of phosphogypsum on physical and chemical properties of sod-podzolic sandy soil and formation of productivity and quality of potato and spring barley was revealed. With the introduction of phosphogypsum, on average for 3 years, the soil received (kg S/ha per year): with a dose of 0.5 t/ha +35.1, with a dose of 1.0 t/ha +57.6, with a dose of 1.5 t/ha +79.8 and against a background of 3.0 t/ha +105.6, which led to an increase in the content of salpho in the soil, respectively, introduced doses of meliorant – by 9.7, 17.5, 26.5 and 32.9 mg S/kg compared to the initial level. A single application of phosphogypsum to sod-podzolic soil provided an increase in the content of labile phosphorus by 72 and 40 mg/kg against the background of doses of 1.5 and 3.0 t/ha. The As-sessment of the possible toxicity of phosphogypsum showed that the ratio of Ca/Sr in the soil is at a safe level and amounted to 97 in the control variant, against the background of doses of phosphogypsum 0.5, 1.0 and 1.5 t/ha – 104-117. In total, for three years of research, the use of meliorant provided an increase in the productivity of potato – barley – potato crop rotation by 30-38 kg of grains units/ha or 19-24% in comparison with the option where only NPK fertilizers were used.
Keywords:
phosphogypsum, potatoes, barley, quality, phosphorus, acidity, fertility
phosphogypsum, potatoes, barley, quality, phosphorus, acidity, fertility
