Varierad utsädesmängd i stråsäd : texturens påverkan på skörd, utveckling och kvalitetsvariabler
The development in Swedish agriculture is rapidly advancing and the use of precision cultivation is becoming more common. Making the right things at the right time and in the right place is something that is increasingly sought by farmers to improve the growth of the crop as well as to achieve the r...
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| Formato: | L3 |
| Lenguaje: | sueco Inglés |
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SLU/Dept. of Soil and Environment
2018
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| Materias: |
| Sumario: | The development in Swedish agriculture is rapidly advancing and the use of precision cultivation is becoming more common. Making the right things at the right time and in the right place is something that is increasingly sought by farmers to improve the growth of the crop as well as to achieve the right quality of yield. The purpose of this work is to investigate how to vary the seed amount after the soil texture. This was carried out through a pilot project in oats where different seed quantities were seeded in test panes on a field of varied clay content. The experiment would show if there were any differences in plant numbers, development, or quality, and if those differences correlated to the variations in texture within the field. The hope was that the study would give answers to whether the amount of seed can be reduced on lighter soils without risking a lower yield or poorer quality of the end product. The work also included making a literary review of both Swedish and foreign literature related to varied seed quantities. The results of the experiment and the literature study showed that there is a certain basis for using the soil texture to vary the amount of seed. There was a difference between emergence and plant development on the different soil types. With a higher plant emergence on lighter soils and lower with higher clay content. There were also harvest qualities that differed between the different crops. On the other hand, there was no significant difference in yield between different seeding amount or different soil types. Based on the experiment, a specific seed amount could not be determined that is optimal for a certain texture in the soil. However, it is clear that there are differences between test sites and that these differences are likely to be derived from the texture. The idea was to compensate for poorer plant emergence on the clay soil, increasing the amount of seed, but the dry year meant that the clay soils had the advantage of being able to keep water better than the sand soils and that might have affected the result. Based on both the field trial and the literature study, it can be concluded that there is an advantage to vary the amount of seed after variation in texture. But the design of this variation must be determined by more studies and field trials. |
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