Abstract
The research was carried out in 1991-1994 and in 2012-2019 in the conditions of the Tver region. The effectiveness of two variants of ridge band-broadcast method of sowing grain crops was studied. The soils of the experimental plot were soddy-podzolic, well cultivated, light loamy and loamy sand gleyic drained by closed drainage. It has been established, that in the conditions of the northwestern part of the Non-chernozem zone on drained lands, grain crops (winter rye, winter triticale, barley, oats, spelt) should be grown on ridges 40-80 mm high using an improved ridge band-broadcast method of sowing that ensures smoothing of the soil surface, creation of a compacted bed and good contact of seeds with the soil by pressing them. By ridge band-broadcast method of grain crop sowing, an average 10.3 % increase in field germination of seeds was noted for all crops, plant survival – by 5.8 %, viability of winter rye plants during wintering – by 12.5-19.0 %, enhancing photosynthetic activity of plants, improving the structure and increasing the yield – by 0.21-1.19 t / ha. The yield increase was obtained both due to an increase in the number of productive stems by 17.8 % (on average in crops), and due to a higher grain mass in the ear (panicle) – by 10.0 %. The most significant increase in the number of productive stems during ridge sowing was observed in spelt and winter triticale (by 26.0-83.1 %), in the number of grains – in oats and winter rye (by 4.7-17.9 %), in the weight of 1000 grains – in barley, in grain mass in an ear (panicle) – in oats (17.0-24.0 %) and winter rye (8.0-10.1 %). The advantage of the ridge band-broadcast method of sowing is due to optimizing the area of plant nutrition and improving the agrophysical conditions in the seed layer of the soil.
Highlights
The research was carried out in 1991-1994 and in 2012-2019 in the conditions of the Tver region
By ridge band-broadcast method of grain crop sowing, an average 10.3 % increase in field germination of seeds was noted for all crops, plant survival – by 5.8 %, viability of winter rye plants during wintering – by 12.5-19.0 %, enhancing photosynthetic activity of plants, improving the structure and increasing the yield – by 0.21-1.19 t / ha
The most significant increase in the number of productive stems during ridge sowing was observed in spelt and winter triticale, in the number of grains – in oats and winter rye, in the weight of 1000 grains – in barley, in grain mass in an ear – in oats (17.0-24.0 %) and winter rye (8.0-10.1 %)
Summary
Изучали эффективность двух модификаций гребнистого ленточно-разбросного способа посева зерновых культур. Что в условиях северо-западной части Нечерноземной зоны зерновые культуры (озимая рожь, озимая тритикале, ячмень, овес, полба) на осушаемых землях целесообразно выращивать на гребнях высотой 40-80 мм с использованием улучшенного гребнистого ленточно-разбросного способа посева, обеспечивающего выравнивание поверхности почвы, создание уплотненного ложа и хороший контакт семян с почвой путем их вдавливания. При гребнистом ленточно-разбросном способе посева зерновых культур отмечено повышение полевой всхожести семян на 10,3 % в среднем по всем культурам, выживаемости растений – на 5,8 %, сохранности растений озимой ржи при перезимовке – на 12,5-19,0 %, усиление фотосинтетической деятельности растений, улучшение структуры и повышение урожая на 0,21-1,19 т/га. Преимущество гребнистого ленточно-разбросного способа посева формируется за счет оптимизации площади питания растений и улучшения агрофизических условий в посевном слое почвы. Поступила: 18.03.2020 Принята к публикации: 23.04.2020 Опубликована онлайн: 23.06.2020
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have