scholarly journals Influence of humic preparations on productivity increase of cucurbits in arid farming conditions

2021 ◽  
Vol 843 (1) ◽  
pp. 012040
Author(s):  
A A Utaliev ◽  
L V Yakovleva ◽  
E A Maslova

Abstract The paper presents the results of studying the influence of liquid humic fertilizer produced from milled lowland peat on biological activity, the dynamics of nutrients in brown semi-desert soils in arid climate conditions with leaf fertilization of cucurbits. In arable farming of the Astrakhan region most of the harvest is formed by mobilizing soil fertility without compensation for the elements of nutrition carried out with the harvest, which leads to a negative balance of humus and nutrients, as a consequence, the soil is depleted, its fertility becomes lower. It is shown, that application of humates promotes increase of the content of humus in soil in arable horizons and reception of higher harvests of an early ripe watermelon that is caused by activization of biochemical processes in soil and increase of nutrients availability that has accelerated development and ripening of fruits of studied crop.

2014 ◽  
Vol 4 (3) ◽  
pp. 220-227 ◽  
Author(s):  
V. S. Kryshchenko ◽  
T. V. Rybianets ◽  
N. Y. Kravtsova ◽  
O. A. Biriukova ◽  
I. V. Zamulina

Solar Energy ◽  
2017 ◽  
Vol 157 ◽  
pp. 587-595 ◽  
Author(s):  
Ali Tahri ◽  
Santiago Silvestre ◽  
Fatima Tahri ◽  
Soumia Benlebna ◽  
Aissa Chouder

ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 221-226
Author(s):  
D.G. Baubekova ◽  

Territories with arid climate are characterized by insufficient atmospheric humidification at high air temperatures. Therefore, the use of drip irrigation during the growing season of plants is an effective agrotechnical method of farming. However, its use causes a number of unfavorable consequences that can be avoided by using biological plant protection agents with pronounced biological activity against phytopathogenic bacteria, micromycetes, insects and viruses. These remedies are based on the introduction of microorganisms and their metabolites into the biotechnological process. A biological plant protection agent based on Bаcillus atrophaeus ACIM В–11474 has been developed and its effect on the mycocenosis of the studied soils when growing lettuce in the arid climate of the Astrakhan region using drip irrigation has been studied.


Author(s):  
Olga Pasko ◽  
Natalia Staurskaya ◽  
Alexandr Zakharchenko ◽  
Valeriy Zharnikov ◽  
Yuriy Larionov

The concept of environmentally sustainable farming, in which the emission of greenhouse gases into the atmosphere is compensated by the accumulation of organic carbon in the arable horizon and deposited in the subsoil, is substantiated. The rationale for agrotechnical methods to reduce greenhouse gas emissions is given. Authors discuss new approaches to the management of soil fertility, plant productivity, and resistance of agrocenoses, based on the principles of bio-farming, the laws of soil fertility, root-circulation, and the management of edaphy and epiphytic processes. Their use allows one to improve soil fertility and purposefully increase the potential and effective resource of agricultural production. The large-scale implementation of the principles of bio-farming in agricultural production during the global warming requires the elaboration of special programs for the development of the agro-industrial complex, its geo-information support, including monitoring of land fertility using GIS technologies.


2017 ◽  
Vol 218 ◽  
pp. 284-292 ◽  
Author(s):  
Luisa Bascuñán-Godoy ◽  
Nicolás Franck ◽  
Denisse Zamorano ◽  
Carolina Sanhueza ◽  
Danny Eduardo Carvajal ◽  
...  

2016 ◽  
Vol 1 (2) ◽  
pp. 7-11
Author(s):  
Мельникова ◽  
Natalya Melnikova ◽  
Нечаева ◽  
Elena Nechaeva ◽  
Редин ◽  
...  

The purpose is to justify the use of minimum and zero tillage in conditions of forest-steppe Zavolzhye region from the position of the biological activity of the soil. One of the factors forming and determining the fertility of the soil, is the activity of microorganisms that inhabit it, the active surface which reaches up to several hundred acres for 1 ha of surface topsoil. Important role in building of soil fertility is the number of major groups of microorganisms, which, being the catalysts of metabolism, objectively reflect the nature of biochemical processes. Another academician S. P. Kostychev (1937) pointed out that without the study of biodynamics the knowledge of the soil, especially from the agronomic point of view, may not be complete. Microorganisms occupy a key position in maintaining biochemical capacity of the soil, so monitoring of soil microflora is essential for the maintenance and reproduction of its fertility. This work is devoted to studying the role of soil microorganisms in the process of maintaining and reproduction of soil fertility in the development of new technologies in agriculture. The article presents data on the effect of basic tillage on the number of different groups of soil microorganisms (micromycetes, bacteria, actinomycetes), Shows the number of soil microorganisms, such as micromycetes (mold fungi) and bacteria are significantly influenced by seasonal changes in temperature and humidity than the soil treatment methods. From which it follows that the reduction of the mechanical load on the soil in the forest-steppe of Zavolzhye a significant impact on the number of major groups of microorganisms has not.


1980 ◽  
Vol 13 (2) ◽  
pp. 172-186 ◽  
Author(s):  
Frederick F. Peterson

AbstractA visually prominent desert soil with a horizon of clay accumulation (Typic Natrargid) has formed under an arid climate in Panamint Valley, California, in sandy, very calcareous, saline fan alluvium in less than about 3500 yr, and probably less than 2000 yr. Such soils can be used as stratigraphic markers, but could be confused with other desert soils with clay-accumulation horizons (Haplargids) which occur much more commonly on desert alluvial fans, are mostly late Pleistocene or older, and do not form in parent materials that are still calcareous. This Natrargid formed in a playa-margin environment, where clay for translocation and sodium salts that engender rapid clay movement probably were provided by dust fall.


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