To prevent sunflower shells is to ensure adequate fertilizer and water, followed by artificial pollination.
First, strengthen fertilizer and water management. The pros and cons of sunflower water and fertilizer conditions have a close relationship with the empty shell rate of sunflower and increase the yield. Tests have shown that the empty shell rate of sunflower with sufficient fertilizer and water is only 3.5%-5%.
Second, strengthen artificial pollination. Artificial pollination is an effective method to improve the seed setting rate in the case of insufficient insect pollination. In the flowering period of 2-3 days, sunflower artificially pollinated. Artificially assisted pollination, soft brush gently touching the disk, so that the stamen's pollen particles stick to the soft brush, and then soft brush to contact another sunflower disk in the same way, that pollination.
First, strengthen fertilizer and water management. The pros and cons of sunflower water and fertilizer conditions have a close relationship with the empty shell rate of sunflower and increase the yield. Tests have shown that the empty shell rate of sunflower with sufficient fertilizer and water is only 3.5%-5%.
Second, strengthen artificial pollination. Artificial pollination is an effective method to improve the seed setting rate in the case of insufficient insect pollination. In the flowering period of 2-3 days, sunflower artificially pollinated. Artificially assisted pollination, soft brush gently touching the disk, so that the stamen's pollen particles stick to the soft brush, and then soft brush to contact another sunflower disk in the same way, that pollination.
Pink Shrimp,Seafood Shrimp,Pud Pink Shrimp,Frozen Pud Pink Shrimp
Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com