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近几年来,我国向日葵的种植面积不断扩大,然而生产中却严重存在着结实率低的问题,一般空壳率达20—30％,有的年份更高,从而影响了单产的提高。为探求解决这一问题的途径,我们进行了硼肥对向日葵结实影响的试验。
In recent years, China’s growing area of sunflowers continue to expand, but production is seriously the problem of low seed set, the general shell rate of 20-30%, and some years higher, thus affecting the yield increase. To explore ways to solve this problem, we conducted a test of the strong impact of boron fertilizer on sunflower.