CROP: Annual sunflower, “Yubileiny 60” variety

PRODUCT: Seed Treatment (foliar application)

YEAR:  2023

COUNTRY: Kazakhstan

TESTER: CENTER FOR BIOLOGICAL EXPERTISE LLC, Agrofirm Privolye LLC

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APPLICATION:‍

1. Control. NPK background.
2. Background NPK + Seed Treatment. Foliar application: 1st - in the phase of 6-8 leaves, 2nd - in the budding phase, product consumption - 1.8 kg/ha, working solution consumption - 300 l/ha.
3. Background NPK + Seed Treatment. Foliar application: 1st - in the phase of 6-8 leaves, 2nd - in the budding phase, product consumption - 2.5 kg/ha, working solution consumption - 300 l/ha.
4. Background NPK + Seed Treatment. Foliar application: 1st - in the phase of 6-8 leaves, 2nd - in the budding phase, product consumption - 3.0 kg/ha, working solution consumption - 300 l/ha.

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Trial plots area – 100 m², observed plots area – 25 m². Trial repetitiveness — four times. 

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RESULT:‍

1. Yield increase compared to control with NPK background: 20.5-48.7%.
2. The increase in yield resulted from improvements in yield structure: sunflower head diameter increased by 17.8-23.5%, seed mass per head increased by 28.4-45.7%, and the mass of 1000 seeds increased by 13.2-17.9%.
3. Quality indicators of the grain also increased: the fat content increased by 1.1-2.3% (absolute values).
4. The maximum result was achieved with a double application at a 3.0 kg/ha dose.
5. The maximum yield increase exceeded the experimental error and was statistically significant.