scholarly journals Foundation of optimal structure of sowing areas and crop rotations for development of organic agriculture in economies of Ukraine in beginning of ХХІ of century

Author(s):  
V. Orekhivskyi
2020 ◽  
Vol 298 ◽  
pp. 106964 ◽  
Author(s):  
Lars Biernat ◽  
Friedhelm Taube ◽  
Iris Vogeler ◽  
Thorsten Reinsch ◽  
Christof Kluß ◽  
...  

2020 ◽  
Vol 27 ◽  
pp. 00152
Author(s):  
Alexander A, Shatokhin ◽  
Omari G. Chamurliev ◽  
Alexander V. Zelenev ◽  
Georgy O. Chamurliev ◽  
Elena S. Vorontsova

Soil fertility in biologized crop rotations depends on the saturation of them with legumes and sideral crops, perennial grasses, the involvement of grain crops in the organic matter cycle. The crop rotation was studied: 1) four-field grain and steam: clean steam winter wheat chickpeas spring barley (control); 2) five-field grain and steam: occupied steam (clover green manure) winter wheat chickpeas spring barley mustard + clover; 3) seven-field grain and grass: occupied steam (green manure oats) winter wheat mustard chickpeas safflower dyeing spring barley sainfoin (hatcher field); 4) semi-field grass and grassland: occupied steam (phacelia green manure) winter wheat spring wheat chickpeas grain sorghum spring barley alfalfa (hatchery field). The highest balance of organic matter was ensured in a five-field grain-steam crop rotation with clover for green manure +1.92 t/ha, in this crop rotation the highest balance was observed for nitrogen +23.8 kg/ha and phosphorus +1.3 kg/ha, grain harvest from 1 ha of arable land 0.51 t/ha. The greatest balance of potassium was ensured in the seven-field grain and grass-crop rotation with facet on green manure +8.8 kg/ha. The highest humus balance was observed in a seven-field grain-grass-crop rotation with oats per green manure +0.12 t/ha.


2015 ◽  
Vol 65 ◽  
pp. 175-192 ◽  
Author(s):  
P Hlavinka ◽  
KC Kersebaum ◽  
M Dubrovský ◽  
M Fischer ◽  
E Pohanková ◽  
...  

Author(s):  
Ol'ga Gladysheva ◽  
Oksana Artyuhova ◽  
Vera Svirina

The results of long-term research in experiments with crop rotations with different clover saturation are presented. It is shown that the cluster has a positive effect on the main indicators of vegetation of dark-gray forest soil. The introduction of two fields of perennial grasses into the six-field crop rotation significantly increases both the humus reserves and increases the productivity of arable land by 1.5–2 times compared to the crop rotation with a field of pure steam.


2015 ◽  
Vol 2015 (3) ◽  
pp. 13-16 ◽  
Author(s):  
M.M. Makortetskiy ◽  
◽  
M.O. Perov ◽  
I.Yu. Novitsky ◽  
◽  
...  

Author(s):  
Saulius GUŽYS ◽  
Stefanija MISEVIČIENĖ

The use of nitrogen fertilizer is becoming a global problem; however continuous fertilization with nitrogen ensures large and constant harvests. An 8 year research (2006–2013) was conducted to evaluate the relationships between differently fertilized cultivated plant rotations. The research was conducted in Lipliunai (Lithuania) in the agroecosystem with nitrogen metabolism in fields with deeper carbonaceous soil, i.e. Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The research area covered three drained plots where crop rotation of differently fertilized cereals and perennial grasses was applied. Samples of soil, water and plants were investigated in the Chemical Analysis Laboratory of the Aleksandras Stulginskis University certified by the Environment Ministry of the Republic of Lithuania. The greatest productivity was found in a crop rotation with higher fertilization (N32-140). In crop rotation with lower fertilization (N24-90) productivity of cereals and perennial grasses (N0-80) was 11–35 % lower. The highest amount of mineral soil nitrogen was found in cereal crop rotation with higher fertilization. It was influenced by fertilization and crop productivity. The lowest Nmin and Ntotal concentrations in drainage water were found in grasses crop rotation. Crop rotations of differently fertilized cereals increased nitrogen concentration in drainage water. Nmin concentration in water depended on crop productivity, quantity of mineral soil nitrogen, fertilization, and nitrogen balance. The lowest nitrogen leaching was found in the crop rotation of grasses. Cereal crop rotation increased nitrogen leaching by 12–42 %. The usage of all crop rotations resulted in a negative nitrogen balance, which essentially depended on fertilization with nitrogen fertilizer.


2007 ◽  
Vol 35 (2) ◽  
pp. 241-244 ◽  
Author(s):  
Sándor Berényi ◽  
Attila Vad ◽  
Lajos Dóka ◽  
Péter Pepó
Keyword(s):  
Zea Mays ◽  

Think India ◽  
2019 ◽  
Vol 22 (3) ◽  
pp. 757-767
Author(s):  
J. ELANCHEZHIAN ◽  
Dr. K. KALAICHELVI

Consumers’ interest in organic products is increasing globally. As IFOAM 2016 report, only 1.2 % of the land has been utilized in organic agriculture method. The overall organic market has achieved 89.7 billion $ in 2016 in that, & 48.4 a billion in sales accounted for the USA and German alone. Total registered organic producer in the worldwide is 2.7 million in that India is the leading country which has 835,200 organic producers. But many of them are a small farmer, and they had shared 1.49 million hectares only. The Government of India (GOI) and the state governments have taken several steps to improve the regulatory mechanism and frame several schemes to incentivize organic farming. 2017 December, Food Standards and Safety Authority of India (FSSAI) have recognized both the certification systems (NPOP and PGS-India) valid for organic food products. From these steps, GOI has tried to create confidence in the organic products, so that, domestic consumers and export countries can trust Indian organic products. But still, the organic sector in India suffered from some unique characteristic that is the absence of proper branding, package, consumer awareness, purchasing power, and supply chain issues (Agarwal, 2018).


Author(s):  
V.V. Ilinich ◽  
◽  
A.A. Naumova

the presented research is dedicate to confirming the hypothesis about increase in extreme precipitation of recent decades, affecting the degree of soil erosion in crop rotations.


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