A comprehensive study on optimizing cultivation techniques for improved productivity
Awnless brome (Bromus inermis Leyss.) is a valuable perennial grass species widely used in pasture and hay production systems. Its productivity and persistence are significantly influenced by establishment methods, particularly sowing techniques and seeding rates .
Research Focus: This study examines how different sowing methods and seeding rates affect the formation of agrocenosis and ultimately the seed yield of awnless brome.
Agrocenosis, the agricultural plant community, develops differently based on initial establishment conditions, which subsequently affects competitive relationships, resource utilization, and productivity . Understanding these dynamics is crucial for optimizing cultivation practices.
Proper sowing methods can improve water use efficiency by up to 25% in awnless brome stands .
Optimal plant spacing through correct seeding rates enhances light interception and photosynthesis .
The experiment was conducted over three growing seasons using a randomized complete block design with four replications. Plant density, tillering capacity, biomass production, and seed yield were measured at appropriate growth stages .
Sowing Methods
Seeding Rates
Growing Seasons
Replications
Row sowing with 15 cm spacing at 8 kg/ha resulted in the highest plant density (245 plants/m²), while broadcast sowing at 4 kg/ha produced the lowest density (128 plants/m²) .
The formation of stable agrocenosis was fastest in row sowing treatments, reaching optimal canopy closure in 45-50 days compared to 60-65 days in broadcast sowing .
| Parameter | Optimal Method | Optimal Rate | Yield Increase |
|---|---|---|---|
| Seed Yield | Row Sowing (15cm) | 8 kg/ha | +22% |
| Plant Density | Row Sowing (15cm) | 8 kg/ha | +48% |
| Tillering | Row Sowing (30cm) | 6 kg/ha | +35% |
| Biomass | Precision Drilling | 8 kg/ha | +18% |
Key Recommendation: Row sowing with 15-30 cm spacing at a seeding rate of 6-8 kg/ha provides the optimal balance for establishing productive awnless brome agrocenosis with high seed yield potential.
The study demonstrates that sowing method significantly influences the formation and development of awnless brome agrocenosis. Row sowing promotes more uniform plant distribution, better light interception, and improved competitive ability against weeds .
6-8 kg/ha provides the best yield-to-cost ratio
Up to 22% higher yields with optimal methods
15-20 days faster agrocenosis formation
These findings provide practical guidance for farmers and agronomists seeking to optimize awnless brome establishment for maximum productivity and sustainable pasture management . Further research could explore interactions with fertilization regimes and water availability.