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从１９９６年开始,我们开始试用板栗化学除雄剂除雄,收到明显效果,６６７米２产由原来的１３０公斤增至１７０公斤左右,增产幅度在３０%,是粗放管理的６～８倍,且投资少,每支药剂６元钱可喷干周约１８～２０厘米的树８～１０株,的确是投资少、效益高的好措施。具体方法:１、喷
Since 1996, we have started to test the removal of chestnut chemical maleicides, which has achieved remarkable results. The output of 667 m 2 increased from 130 kg to 170 kg, and the rate of increase was 30%, which is 6 to 8 times of extensive management , And less investment, 6 yuan per medicinal agent can spray dry about 18 to 20 cm of trees 8 to 10, is indeed a good investment and high efficiency measures. Specific methods: 1, spray