Open AccessCHEMICAL COMPOSITION OF FEEDS DEPENDING ON BASIC SOIL TILLAGE METHODS AND NUTRITION BACKGROUND
Author(s) -
В. В. Медведев,
В. Н. Фомин,
Макарим Нафиков,
A. R. Nigmatzyanov
Publication year - 2020
Publication title -
vestnik kazanskogo gosudarstvennogo agrarnogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 2073-0462
DOI - 10.12737/2073-0462-2020-32-37
Subject(s) - plough , tillage , phosphorus , silage , agronomy , fertilizer , zoology , nitrogen , anhydrous , potassium , chemistry , potash , biology , organic chemistry
In 2014–2016 in Zakame of the Republic of Tatarstan, a study was conducted to increase the productivity of corn (Mashuk 250 hybrid) for silage using various fertilizer systems (without fertilizers – control, NPK at 40 t/ha of green mass, PK - background, background + N40, background + N60 , background + N80, background + N100, background + N120) and tillage methods (plowing - control, tillage cultivation). The availability of phosphorus in the soil of the experimental plot was sufficient for the formation of the planned yield, therefore, phosphorus fertilizers were not added. The nitrogen content in the green mass of corn for plowing was 3.03 ... 3.85%, phosphorus - 0.45 ... 0.71%, potassium - 1.71 ... 1.98%, for non-dump processing, respectively - 3.01 ... 3, 83; 0.43 ... 0.69 and 1.69 ... 1.97%. Against an unfertilized background, the nitrogen content in the green mass of corn for plowing was equal to 3.03%, with the introduction of NK under the yield of 40 t/ha - 3.41%, K - 3.14%. In the variant with the use of anhydrous ammonia at a dose of 40 kg of active substance/ha against a background of potash fertilizers, the amount of nitrogen in the green mass was 3.34%, 60 kg - 3.41%, 80 kg - 3.43%, 100 kg - 3.76% and 120 kg - 3.85% (0.82% higher than unfertilized background). The maximum NPK removal in the experiment was observed by plowing in the background + N120 variant (1183; 218; 608 kg/ha, respectively), background + N100 (1114; 207; 584 kg/ha) and when fertilizing with a yield of 40 t/ha of green mass (1051; 206; 598 kg/ha). With subsurface processing, the take-off decreased, but the distribution of the first variants of this indi