RESEARCH REGARDING THE CONTROL OF THE SOIL PRIMARY COMPACTION IN THE CONDITIONS FROM BIHOR COUNTY
Journal Title: Natural Resources and Sustainable Development - Year 2013, Vol 3, Issue 1
Abstract
The paper presents a brief summary of research carried out in Sânmartin and Oradea research fields of Agricultural Research and Development Station Oradea. Colibaș Iuliu was the first Romanian researcher who used the scarifier at Sânmartin, in 1968. Sânmartin researches shows the positive effect of the scarification on the physical and chemical properties of soil, increased of the capacity of water storage and of the roots depth and finally yields increases from 25% to 16% in maize and wheat; several series of experiments have revealed a four years duration of the scarification. Research from Oradea were performed in the crop rotation wheat-maize fertilized with N60P45 and in the crop rotation wheat + clover – clover-maize-soybean-maize-oil flax (sunflower) + N120P90 + 50 t/hectares manure shows that scarification caused decreasing of the bulk density values and of the penetration resistance and also increasing of the hydraulic conductivity; the most favourable values of physical parameters of the soil have been registered in the variant with meliorative crop rotation with clover, manure and scarification. Accessible mineral nitrogen content (N-NO3-NH4), mobile phosphorus and potassium has grown in the two variants with deep loosening. As a result, average on 6 years, in high agrotehnics variants the wheat production has increased with 30%, while that of maize with 12%. Research from Sânmartin and Oradea show the positive influence of scarification on the physical and chemical soil parameters and on crops, as well as the need for its involvement in a meliorative crop rotation with an optimal chemical and organic fertilization.
Authors and Affiliations
Cornel Domuța, Maria Colibaș, Radu Brejea, Aurelia Oneț, Cristian Oneț
Keywords
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