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台江红油大板栗栗园土壤中缺乏硼营养元素是造成板栗空苞率高、低产的主要原因,施硼能降低红油大板栗的空苞率,在配置有授粉品种的情况下,红油大栗板空苞是由缺硼而引起,叶面喷施硼肥和土壤施硼肥均能降低板栗空苞率,提高板栗产量。在降低板栗空苞率,提高板栗产量上,叶面施硼的作用大于土壤施硼的作用,叶面喷施硼肥最适宜浓度是0.2%,最佳施肥期是5月上旬,土壤施硼肥的最佳施用量是15-20g,最适宜的施硼期是2月。
The lack of boron nutrition in the chestnut chestnut soil of Taijiang Oilfield is the main reason for the high and low yield of hollow chestnut. Applying boron can reduce the empty spewing rate of chestnut of red oil. Under the condition of pollination, red Empty chestnut shell is caused by a lack of boron, spraying boron on the foliage and soil application of boron can reduce the empty chestnut rate, increase chestnut production. In reducing the rate of hollow chestnut chestnut, chestnut yield increased, the role of the leaves of boron is greater than the role of soil boron, the optimum concentration of foliar application of boron is 0.2%, the best fertilization period is early May, soil boron The best application of fertilizer is 15-20g, the most suitable application of boron is February.