Open AccessApplication of sapropel as an organic fertilizer under conditions of the right bank of the Saratov region
Author(s) -
I.F. Medvedev,
Sergey Sergeevich Derevyagin,
Ilya Olegovich Molchanov,
Anastasiya Sergeevna Buzueva,
Михаил Николаевич Панасов,
Н. Н. Гусакова
Publication year - 2019
Publication title -
agrarnyj naučnyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-9944
pISSN - 2313-8432
DOI - 10.28983/asj.y2019i11pp23-26
Subject(s) - sapropel , fertilizer , nitrate , potassium nitrate , nitrogen , chemistry , potassium , agronomy , biology , ecology , organic chemistry , mediterranean climate
The effectiveness of sapropel as an organic fertilizer is revealed. It was compared with the traditional organic and mineral fertilizers. So, the most noticeable softening of the soil compared to the control variant was after application of sapropel. During the study, application of sapropel maximally increased the content of nitrate nitrogen in the soil from 2.8 to 4.1 mg/kg, exceeding the indicator of ammonium nitrate by 48.8% and manure by 36.6%. Sapropel increases the content of mobile forms of potassium in the soil over an average of 2 years from 306 to 316 mg/kg, while the content of mobile phosphorus is minimal - 20.3 mg/kg. The highest yield of spring wheat was in the variant the variant after application of ammonium nitrate in a dose of N60 (1.64 t/ha) and sapropel in a dose of 6 t ha (1.57 t/ha).