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以3年生非均匀密度种植的香椿为试材,采用L9(34)正交设计进行施肥、浇水和截干试验,研究3因素对香椿萌芽生长和芽菜产量的影响。结果表明:试验实施7d时,香椿开始萌发幼芽,其平均萌芽数和成枝数分别是4.1~7.7芽/株和1.4~2.2枝/株;50、70d时,香椿芽直径和芽长分别为2.8~4.0mm、3.5~8.3cm和2.9~4.2mm、4.0~9.0cm。试验实施的70d内分2次采摘芽菜,其总产量及其产值分别达661.3~3 161.8kg/hm2和13 225.2~63 236.0元/hm2。处理组合间,萌芽生长和芽菜产量具有显著或极显著的差异影响,有机肥是影响此二指标的关键因子。芽菜产量最高的处理组合是每株施有机肥0.25kg,定干高20cm和每4d浇水1次。
The three-year non-uniform density of Toona sinensis planted as an experimental material, using L9 (34) orthogonal design fertilization, watering and truncation test to study the three factors on the growth of Chinese Toon and sprout yield. The results showed that: At the 7th day of the experiment, the germination of young buds was at first, the average germination number and branch number were 4.1-7.7 buds and 1.4-2.2 buds per plant. At 50 and 70 days, the diameter and bud length of Toona sinensis 2.8 to 4.0 mm, 3.5 to 8.3 cm and 2.9 to 4.2 mm, 4.0 to 9.0 cm. During the 70 days of the experiment, the sprouts were picked twice in two seasons, and the total output and output value reached 661.3 ~ 3 161.8kg / hm2 and 13 225.2 ~ 63 236.0yuan / hm2, respectively. There was a significant or extremely significant difference between treatments on the combination of sprouting and sprout yield. Organic manure was the key factor affecting these two indexes. Sprouts output of the highest combination of treatment is the application of organic fertilizer 0.25kg per plant, set dry height 20cm and watering once every 4d.