Effect of variable rate seeding on winter wheat seedbed and germination parameters using soil apparent electrical conductivity
| Autor: | Marius Kazlauskas, Abdul Mounem Mouazen, Tadas Žiogas, Vilma Naujokienė, Kęstutis Romaneckas, Justinas Anušauskas, Algirdas Jasinskas, Egidijus Šarauskis, Dovydas Vaicekauskas, Dainius Steponavičius, Indrė Bručienė |
|---|---|
| Přispěvatelé: | Malinovska, L., Osadcuks, V. |
| Rok vydání: | 2021 |
| Předmět: |
Agriculture and Food Sciences
Tractor soil management zone business.product_category Seed drill precision seeding apparent electrical conductivity tillering coefficient law.invention Soil management Agronomy Electrical resistivity and conductivity Germination law seed depth Environmental science Soil horizon Seeding Seedbed business |
| Zdroj: | 20TH INTERNATIONAL SCIENTIFIC CONFERENCE ENGINEERING FOR RURAL DEVELOPMENT |
| ISSN: | 1691-5976 1691-3043 |
| DOI: | 10.22616/erdev.2021.20.tf240 |
| Popis: | Due to the variability of soil characteristics in the field and the rising prices of high-quality seeds, farmers are increasingly interested in applying a system of precision variable rate seeding (VRS), which makes it easier to manage risks in crop production and allows to ensure the profitability of the farm. Most modern seed drills are equipped with a hydraulic or electric drive and a terminal in the tractor cabin, allowing farmers to apply VRS. The aim of this study was to determine the most appropriate seeding rate of winter wheat according to the measured apparent soil electrical conductivity (ECa) in the field, to investigate the uniformity of seed placement by layers in the soil and to evaluate the germination dynamics of winter wheat. Precision seeding was performed using a VRS map, generated from soil ECa data obtained by field surface scanning using the ECa device EM-38 MK2. Winter wheat seeding was implemented with a direct seed drill. The research was carried out by measuring the parameters of winter wheat seedbed and germinated plants, including the number and distribution of seeds in soil layers of different depths, germination, tillering. Field research was performed with 3 treatments and 4 repetitions (1 - uniform rate seeding; 2 - VRS; 3 - VRS + variable rate fertilisation (VRF)). The results of the research showed a direct relationship between the soil ECa and the depth of seed placement. Most seeds were inserted at medium depths (15-30 mm), except in the soil management zone, where ECa was highest (28.8 mS center dot m(-1)). In this area, most seeds (50.7%) were inserted shallowly up to 15 mm. The experimental results of seeding studies showed that using the VRS and VRS + VRF methods in all soil zones the germination of winter wheat was similar, while seeding at the uniform rate yielded significant differences between individual soil zones. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|