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板栗对硼的反映十分敏感,在缺硼的土壤中增施硼肥,能有效地降低空苞率,提高单株产量。具体施用方法:一是萌芽期施硼,在早春结合施萌芽肥,把硼砂施入土壤中,一般每株施硼砂100~150克,缺硼的土壤还可适当多施;二是花期喷硼,每亩(1亩=667平方米,下同)用硼砂150克对水50千克,均匀地喷在雌花上。对空苞率高的还可适当增加喷硼浓度。实践证明:板栗经过施硼、喷硼
The reaction of chestnut to boron is very sensitive. Adding boron fertilizer to the boron-deficient soil can effectively reduce the rate of empty shell and increase the yield per plant. The specific application method: First, the application of boron in the germination period, in early spring combined with budding buds, the borax into the soil, the general application of borax per plant 100 to 150 grams, boron-deficient soil can also be applied more than the appropriate; , Per acre (1 mu = 667 square meters, the same below) with 150 grams of borax on the water 50 kg, spray evenly on the female flowers. The rate of empty bract can also be appropriate to increase boron concentration. Practice has proved: chestnut after applying boron, boron spraying