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欲使桑园面积发展迅速,就要提高栽植质量,使桑园尽快进入丰产期,达到第一年亩产茧50公斤,第二年100公斤,第三年150公斤的产量指标。日照市近年来实施一系列技术后,达到一龄桑亩产茧75公斤、二龄桑产茧150公斤指标。现将技术介绍如下:一、选择土地及整地选择地势平坦、土层深1.5米以上的地块栽桑,中性轻壤土最好,轻砂、轻粘土次之,要求所选地块耕作层有机质在1.2%以上,旱能灌、涝能排。每年秋季作物收获后整地施肥。每亩撒施1500～2000公斤有机肥后,再深翻40～60厘米,然后整平地
For the rapid development of mulberry area, it is necessary to improve the quality of planting, mulberry fields as soon as possible to enter the high yield, the first year to reach 50 kg per mu, 100 kg the second year, the third year 150 kg yield indicators. Rizhao City in recent years after the implementation of a series of technologies to achieve the first-year-old Sangmu cocoons produced 75 kg, 150 kg of second-generation mulberry cocoon indicators. Now the technology is as follows: First, the choice of land and land preparation Select the flat topography, the soil depth of 1.5 meters above the plot planted mulberry, neutral light loam best, light sand, light clay second, requiring the selected plots of tillage Organic matter in more than 1.2%, drought irrigation, waterlogging row. After each autumn crop harvesting site fertilization. 1500-2000 kg of organic fertilizer per acre after sowing, and then deep turn 40 ~ 60 cm, and then leveling