نتایج جستجو برای: chernozems

تعداد نتایج: 184  

Journal: :E3S web of conferences 2021

The paper presents ways of suppressing weed plants, including a complex agricultural practices aimed at reducing their harmful effects and further distribution. Many methods to control vegetation are known in the field cultivation technology. They differ terms amount expired costs labor, economic technical efficiency. As result our research, impact some tillage on effectiveness suppression main...

2007
J. C. F. Tedrow

S' OME eighty years ago, when Dokuchaev (Margulis, 1954) distinguished five natural soil zones tundra, podzol, chernozem, desert, and laterite -the stage was set for a systematic study of soils as naturally occurring bodies. Of these, the tundra has received by far the least attention. European investigators, notably the Russians, have made many studies of the northern regions but in North Amer...

Journal: :BIO web of conferences 2021

The article presents the results of a field study thickness humus profiles gray forest soils and podzolized chernozems dif-ferent terms agricultural use soil catens broad-leaved-forest (background) meadow-steppe areas Belgorod region. work was carried out in spring summer period 2018-2019. objects were different-aged arable plots with age development 100 160 years, respectively. steepness surfa...

Journal: : 2022

The influence of seeding methods, rates against the background pre-sowing and foliar treatments seeds plants on yield quality hemp products at experimental site Penza branch Federal State Budgetary Scientific Research Center LC has been studied. research was carried out leached chernozems in two three-factor experiments 2020-2021. As a result research, studied factors established, so with wide-...

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