Influence of crop rotation, intermediate crops, and organic fertilizers on the soil enzymatic activity and humus content in organic farming systems

2013 ◽  
Vol 46 (2) ◽  
pp. 198-203 ◽  
Author(s):  
A. Marcinkeviciene ◽  
V. Boguzas ◽  
S. Balnyte ◽  
R. Pupaliene ◽  
R. Velicka
Keyword(s):  
Enzymatic Activity ◽  
Organic Farming ◽  
Crop Rotation ◽  
Humus Content ◽  
Farming Systems ◽  
Organic Fertilizers ◽  
Soil Enzymatic Activity ◽  
Organic Farming Systems

scholarly journals PENINGKATAN PENDAPATAN KELOMPOK TANI PADI ORGANIK MELALUI PROGRAM MANDIRI BENIH DI DESA KETAPANG KECAMATAN SUSUKAN SEMARANG

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Supriyadi Supriyadi ◽  
Sumani Sumani ◽  
Purwanto Purwanto ◽  
Mustofa Mustofa
Keyword(s):  
Organic Farming ◽  
Seed Quality ◽  
Group Discussion ◽  
Value Added ◽  
Farming Systems ◽  
Organic Fertilizers ◽  
Organic Certification ◽  
Organic Rice ◽  
Organic Farmers ◽  
Organic Farming Systems

Background, excessive exploitation of paddy land in the long term without the addition of organic matter have resulted in soil become damaged. To meet the needs of food (rice) healthy and improve the functioning of the land, then there is no best alternative except development of organic farming systems. To be able to implement a system of organic farming, it is necessary to aplication of seed quality assurance. IbPUD activities carried out ini the village Ketapang, local village government has formed group of paddy organic farmers, but due to constraints in the available of seed rice organic . The purpose, carry out assistance to Farmers and Farmers Group in the establishment of the sources of seed organic rice and the acquisition of organic certification. The method, is Focus Group Discussion which emphasizes dialogue interpersosnal and mentoring. The program is implementing educational methods that involve the active participation of the participants from the three (3) groups of paddy organic farmers partners in Ketapang. The training was held in the form of : (1) seed rice breading management trainin, (2) training of organic rice management with the use of local waste and can be as alternative of organic fertilizers, and (3) training buines management.Results, an increasing number of farmers' groups who implement sources of seed organic rice of 4 (four) varietas (Mentik Susu, Mentik Wangi, Hitam Arang and Merah Anoman) to 3 farmer groups (15Ha). In conclusion, most members of the Farmers Group Al-Barokah have felt: (a) the benefit of the treatment of organic in terms of soil quality and the products of organic rice and its by-products, (b) an increase in value-added organic products and farmers' income, (c) the importance of maintaining paddy according to its function, (d) have become independent farmers in organic rice cultivation.<br />Keywords: Organic farming systems, Organic certification, Interpersonal dialogue

Fertilization System as a Factor of Transforming the Humus State of the Soil

2015 ◽  
Vol 2 (2) ◽  
pp. 39-44
Author(s):  
V. Lopushniak
Keyword(s):  
Crop Rotation ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Content Increase ◽  
Energy Reserves ◽  
Gross Energy ◽  
Stable Forms

Aim. To establish the effect of different fertilization systems in short fi eld crop rotation on the change in the state of humus in the dark gray podzolic soils in Western Forest-Steppe of Ukraine. Methods. Field studies were carried out in a stationary experiment of the Department of Soil Science and Agricultural Chemistry of the L’viv National Agrarian University; determination of humus content – according to DSTU 4289:2004, and that of its labile forms – in accordance with DSTU 4732:2007, fraction-group composition – by Ponomare- va-Plotnikova’s method, according to the measurement procedure 31-497058-008-2002. Results. The use of organo-mineral fertilizer system in short fi eld crop rotation with the saturation of organic fertilizers of 15 t/ha of crop rotation contributes to the humus content increase by 0.7 % after the third rotation in 0–40 cm layer of dark gray podzolic soil, the increase in the share of stable forms of humic compounds up to 57–59 % and the increase in the ratio of R HA :R FA to 1.3–1.4. The study demonstrated very high dependence of amount of gross energy reserves in the humus on the R HA :R FA ratio. Conclusions. The combined application of organic fertili- zers in the form of manure, non-market of the crop (straw) and siderate, along with mineral fertilizers is re- commended in short fi eld crop rotations of Western Forest-Steppe of Ukraine toensure expanded reproduction of fertility of dark gray podzolic soil, improvement of its humus status, increase in gross energy reserves and the share of the stable forms and humic acids in the humus.

Regime of soil humus rural residential areas organic farming systems

2018 ◽  
Vol 2 (95) ◽  
pp. 78-81
Author(s):  
L.I. Shkarivska
Keyword(s):  
Organic Farming ◽  
Rural Areas ◽  
Humus Content ◽  
Farming Systems ◽  
Farming System ◽  
Organic Substrates ◽  
Residential Areas ◽  
Typical Chernozem ◽  
Podzolic Soils ◽  
Organic Farming System

The changes of the soil’s humus soil within the rural areas are investigated for the organic farming system. The most significant impact of organic agriculture on humus content over 55% was observed on soddy podzolic soils (V>75%), the lowest –7,5% on typical chernozem (V≈16%). Changes in the qualitative composition of humus for the introduction of various types of organic substrates are analyzed.

scholarly journals Stable Characteristics of Cover Crops for Weed Suppression in Organic Farming Systems

2011 ◽  
Vol 14 (1) ◽  
pp. 75-85 ◽  
Author(s):  
Hiroshi Uchino ◽  
Kazuto Iwama ◽  
Yutaka Jitsuyama ◽  
Keiko Ichiyama ◽  
Eri Sugiura ◽  
...  
Keyword(s):  
Organic Farming ◽  
Cover Crops ◽  
Farming Systems ◽  
Weed Suppression ◽  
Organic Farming Systems

Soil fertility in organic farming systems - fundamentally different?

2006 ◽  
Vol 18 ◽  
pp. 301-308 ◽  
Author(s):  
E.A. Stockdale ◽  
M.A. Shepherd ◽  
S. Fortune ◽  
S.P. Cuttle
Keyword(s):  
Soil Fertility ◽  
Organic Farming ◽  
Farming Systems ◽  
Organic Farming Systems

scholarly journals Cocktails of pesticide residues in conventional and organic farming systems in Europe – legacy of the past and turning point for the future

2021 ◽  
pp. 116827
Author(s):  
Violette Geissen ◽  
Vera Silva ◽  
Esperanza Huerta Lwanga ◽  
Nicolas Beriot ◽  
Klaas Oostindie ◽  
...  
Keyword(s):  
Organic Farming ◽  
Pesticide Residues ◽  
Turning Point ◽  
Farming Systems ◽  
The Past ◽  
The Future ◽  
Organic Farming Systems

scholarly journals Effect of Different Tillage Systems on Soil Organic Carbon and Enzymatic Activity

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 208
Author(s):  
Małgorzata Szostek ◽  
Ewa Szpunar-Krok ◽  
Renata Pawlak ◽  
Jadwiga Stanek-Tarkowska ◽  
Anna Ilek
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Organic Farming ◽  
Total Nitrogen ◽  
Farming Systems ◽  
Conventional Tillage ◽  
Tillage Systems ◽  
Organic Farming Systems ◽  
Organic Matter Fractions

The aim of the study was to compare the effect of conventional, simplified, and organic farming systems on changes in the content of soil organic carbon, organic matter fractions, total nitrogen, and the enzymatic activity. The research was conducted from 2016–2018 on arable land in the south-eastern part of Poland. The selected soils were cultivated in conventional tillage (C_Ts), simplified tillage (S_Ts), and organic farming (O_Fs) systems. The analyses were performed in soil from the soil surface layers (up to 25 cm depth) of the experimental plots. The highest mean contents of soil organic carbon, total nitrogen, and organic matter fractions were determined in soils subjected to the simplified tillage system throughout the experimental period. During the study period, organic carbon concentration on surface soil layers under simplified tillage systems was 31 and 127% higher than the soil under conventional tillage systems and organic farming systems, respectively. Also, the total nitrogen concentration in those soils was more than 40% and 120% higher than conventional tillage systems and organic farming systems, respectively. Moreover, these soils were characterised by a progressive decline in SOC and Nt resources over the study years. There was no significant effect of the analysed tillage systems on the C:N ratio. The tillage systems induced significant differences in the activity of the analysed soil enzymes, i.e., dehydrogenase (DH) and catalase (CAT). The highest DH activity throughout the experiment was recorded in the O_Fs soils, and the mean value of this parameter was in the range of 6.01–6.11 μmol TPF·kg−1·h−1. There were no significant differences in the CAT values between the variants of the experiment. The results confirm that, regardless of other treatments, such as the use of organic fertilisers, tillage has a negative impact on the content of SOC and organic matter fractions in the O_Fs system. All simplifications in tillage reducing the interference with the soil surface layer and the use of organic fertilisers contribute to improvement of soil properties and enhancement of biological activity, which helps to maintain its productivity and fertility.

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