scholarly journals Recreation of lowland heathland on ex-arable land: assessing the limiting processes on two sites with contrasting soil fertility and pH

2007 ◽  
Vol 44 (3) ◽  
pp. 573-582 ◽  
Author(s):  
KEVIN J. WALKER ◽  
ELIZABETH A. WARMAN ◽  
ANNE BHOGAL ◽  
ROY B. CROSS ◽  
RICHARD F. PYWELL ◽  
...  
Keyword(s):  
2018 ◽  
Vol 20 (5) ◽  
pp. 84
Author(s):  
Yingjie Hu ◽  
Xiangbin Kong ◽  
Yuzhen Zhang

Author(s):  
V. А. Shchedrin

In OOO “Dubovitskoe” which was organized in 2006 as investment project of the AO “Shchelkovo Agrokhim” for 2010 – 2012 three advanced crop rotations have been developed. Before their introduction the grain crops fraction in the cropping system was 62%, then it fell to 49%. At the same time the portion of raw crops increased from 15 to 20%, legumes from 6 to 8%, others (buckwheat, grain maize, etc.) - up to 23%. As of 2017, the crops of leguminous crops have increased noteworthily. There are two predominant soil types here heavy clay loam podzolized chernozem (6615 ha) and grey forest soil (856 ha). Weighted average indicators (as of 2017): humus content in the soils of arable land is 5, 34%; acidity pH is 4.92; labile phosphorus - 111.8 mg / kg soil; exchange potassium - 144 mg / kg soil. The coefficient of the soil fertility in the enterprise (weighted average) is 0.66. This means that maintaining and increasing the soil fertility for arable land of the enterprise is critical task. As a result of the research, it has been established that the technologies introduced in the crop vegetation management (CVS) in the crop rotation conditions ensure high productivity of cultivated crops and stability of humus content in soils as an energy basis and a guarantor of increasing fertility. The indicators of the labile phosphorus Р205 and exchange potassium К20 in the soils depending on the crop rotation vary from a certain decrease to expressed steady growth. Therefore it is necessary to specify seeding rates based on actual data. Sustainable soil acidification in the crop rotations under crop cultivation in OOO “Dubovitskoe” it is the result of the acid feterlizers high rates application, during studying period did not carried out required agromelioration with calcium contenting elements.


Author(s):  
S. M. Vasilyev ◽  
◽  
A. N. Babichev ◽  

Purpose: to establish the basic principles of the organization of reclamed agricultural landscapes and to substantiate the use of the agricultural landscape approach in the organization of the territory. Materials and Methods. When preparing this article, the materials of Russian scientists dealing with the issues of soil fertility conservation and ecological sustainability of reclaimed agricultural landscapes were considered. The methods used were analysis, generalization, synthesis and other methods of working with literary sources on this issue. Results. In performing the work, the main principles and indicators were determined, such as productivity, sustainability, the rule of transforming measures for the natural environment, optimization of the agricultural landscape, authenticity, principles of the formation of reclaimed agricultural landscapes, the complexity of the reclamation impact, the required diversity, the uniqueness of the reclamation impact. The basic requirements for the preservation of soil fertility of reclaimed irrigated agricultural landscape have been established. It was found that to maintain ecological balance within the irrigated agricultural landscape, it is necessary to adhere to the indicators of the reclamation load of the natural environment. The limits of agricultural lands saturation in reclaimed agricultural landscapes for various agro-climatic zones have been substantiated and recommended. Conclusions. It has been determined that the coefficient of reclamation loading of irrigated lands, showing the maximum share of irrigated lands that can be irrigated in a particular climatic zone, varies from 0.3 in the forest-steppe zone to 0.60–0.85 in the semi-desert and desert zone. This suggests that with an increase in moisture supply, this indicator decreases, the recommended amount of agricultural land in various agroclimatic zones varies from 30 to 87 %, while the area of arable land should not exceed 20–25 % in a very dry zone, and with an increase in moisture supply, it can increase up to 80 % in the semi-arid zone. The amount of irrigated land in the reclaimed agricultural landscape should not exceed 18–20 %. Irrigated meadows and pastures should account for 1–2 to 5–6 % of the area.


2008 ◽  
Vol 141 (9) ◽  
pp. 2208-2217 ◽  
Author(s):  
Paul Kardol ◽  
Annemieke Van der Wal ◽  
T. Martijn Bezemer ◽  
Wietse de Boer ◽  
Henk Duyts ◽  
...  

2021 ◽  
pp. 146-153
Author(s):  
S. Razanov ◽  
V. Melnyk ◽  
B. Nazaruk ◽  
M. Kutsenko

The article presents the results of the agroecological composition of soils for different agricultural uses. Under modern conditions of increasing intensification of agricultural production, the agroecological condition of soils is deteriorating, which increases the risk of obtaining low–quality products. Along with this, there are various problems, such as loss of soil fertility, increased erosion, groundwater pollution and environmental pollution in general. Therefore, there is a need for constant monitoring of agroecological indicators of the soil in the conditions of intensive agriculture and horticulture. The great importance is the problem of finding reserves to increase soil fertility and improve their agroecological condition. Therefore, regular testing of soil nutrients and factors that have a major impact on their availability are extremely important to achieve sustainable levels of crop and fruit production. The main purpose of the research was to study and analyze agricultural lands: arable land and perennial plantations and the main agrochemical indicators of the soil of the central part of Vinnytsia region during intensive agriculture and horticulture. The object of research is the soils of agricultural lands used under intensive horticulture and crop production. The subject of research is the agroecological indicators of soil. The research was carried out in the farm of Agro–Etalon LLC in the village of Vasylivka, Tyvriv district. The soils of agricultural lands used under orchards (apple orchard) and agricultural crops (wheat after sunflower predecessor) were studied for comparison. According to the results of soil analysis, it was found that the highest difference in the studied indicators was found in the exchangeable potassium (К2О), mobile phosphorus (Р2О5), which was observed more in the soils involved in horticulture compared to the soils of field crop rotations. Farm soils with different agricultural uses were characterized by lower humus content. The highest difference in the concentration of chemical metals was found for molybdenum (Mo) and cadmium (Cd), which were more in the soils used in horticulture.


2012 ◽  
Vol 2 (2) ◽  
pp. 11
Author(s):  
Ekaterina G. Kotlyarova ◽  
Vladimir I. Cherniavskih ◽  
Elena V. Dumacheva

<p>Worldwide, about 12x10<sup>6</sup> ha of arable land are destroyed and abandoned annually due to soil erosion. This problem is very serious for Krasnogvardeiskiy district, which is most eroded district (72.7% eroded lands) in the Central Chernozem Zone (CCZ) of Russia. Under the leadership of the academician of Russian Academy of Agrarian Sciences O.G. Kotlyarova the landscape agricultural systems (LASs) were mastered throughout the Krasnogvardeisky district (132 thousand ha). Our investigations showed that the purpose for which LASs were created is reached. Obtained results showed that it is possible to prevent erosive losses and to raise soil fertility. Restoration of soil fertility is presented in terms of increasing of crops productivity-on 25%. Transformation of a landscape basis has increased the general biological capacity of territory more than twice and exchangeable biological capacity by 32%. All these facts have raised assimilability of the transformed territory that allows to consider it, unlike traditional, not as source ??<sub>2</sub> in atmosphere, and as fixed carbon tank which capacity can reach 0,71 t/ha. In turn the intensification of substances circulation leads to increasing of plant production efficiency. Excess is from 14% (productivity of labour expenses) to 43.2% (use efficiency of PAR). In intensively mastered agricultural district (arable lands more than 80%) agroecosystems have been formed, allowing besides its basic function: soil preservation, steady reception of agricultural production, to carry out also the major biospheric function - increasing biological variety, creation of a favorable inhabitancy for live organisms, including human.</p>


2003 ◽  
Vol 72 (2) ◽  
pp. 139-152 ◽  
Author(s):  
S.O Petersen ◽  
K Henriksen ◽  
G.K Mortensen ◽  
P.H Krogh ◽  
K.K Brandt ◽  
...  

2018 ◽  
Vol 12 (4) ◽  
pp. 54-60
Author(s):  
Рафил Шакиров ◽  
Rafil Shakirov ◽  
Закиржан Бикмухаметов ◽  
Zakirzhan Bikmuhametov ◽  
Фидаил Хисамиев ◽  
...  

Complex studies were conducted in eight-field grain-steam-crop and grain-steam-tilled crop rotations using the following terms: fertilizer systems, plant protection, basic tillage methods and plastic varieties. Scientific novelty lies in the fact that for the first time in the forest-steppe of the Volga region, on a systemic basis, resource-saving technologies have been developed on the basis of fertile crop rotations in an ecologically balanced, biologized farming system. Agroecological principles of conservation and reproduction of gray forest soil fertility and obtaining a planned harvest of high quality. Experimental substantiation of the role of action and interaction of the main factors of saving technology, in increasing crop productivity of crop rotations, productivity of arable land and soil fertility. Agroeconomic evaluation of the resource-saving technology effectiveness. Crop rotations of leguminous crops and perennial legumes increase the productivity of arable land to 15-20%, provide a positive balance of humus (0.45-0.5 tons per hectare). Organomineralic fertilizer system reduces the need for mineral fertilizers by 2-3 times, ensures the receipt of planned high quality harvest and reproduction of soil fertility. The integrated plant protection system, using biological means and methods, provides a saving of plant protection products to 30-35%, raises productivity to 15-25%. Moisture-resource-saving mode of soil cultivation (mulching various deep loosening without turnover of beds) allows to save 25-35% of fuel and reduce the moisture loss to 35-40%. Complex application of these factors with the use of high-yielding plastic varieties makes resource-saving technology that increases the productivity of cultivated crops and the productivity of arable land by 1.5-2 times, the profitability of production by 30-50% and ensuring the reproduction of soil fertility.


2019 ◽  
Vol 11 (1) ◽  
pp. 63 ◽  
Author(s):  
Gauri Shankar Gupta

Land degradation has emerged as a serious problem during the last few decades. Soil fertility has declined considerably in many parts of the world due to intensive agriculture, over-grazing, water pollution, increasing use of fertilizers and pesticides, salinization, deforestation and accumulation of non-biodegradable waste. Vast tracts of land are facing desertification. Climate change is further aggravating land degradation, soil erosion and soil fertility. Evidence suggests during the last 6-7 decades over 35 percent of arable land has been degraded due to human induced activities. Soil being the natural medium for plant growth supports all life on earth. Rapidly increasing population, growing food-waste and declining soil fertility are posing serious challenges to humanity for future food security. Therefore, land degradation must come to a halt. Education, changes in agricultural policy and technological innovations are instruments that should be used for restoration of degraded land and stop further land degradation.


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