不同施肥配方对板栗产量影响的试验

Experiment on Different Prescription of Applying Fertilizer Having Influence with Output of Chinese Chestnut

三年的施肥试验说明,实生板栗成年林施用尿素+过磷酸钙+草木灰、尿素+钙镁磷肥,复合肥+草木灰+硼的三种处理,增产平均在45%以上,投入与增益之比为1:4.47～1:9.85,每年每亩纯增益80.8～207元。

Experiment of applying fertilizer for three years showes that the ratio ofinput to gain is 1:4.47～1:9.85 and the pure gain is 80.8～207 yuan per mu a year throughapplying urea + calcium phosophate + plant ashes, urea + calcium, compound fertilizer +plant ashes + boric in adult forest of Chinese Chestnut.