桑条高产栽培及其制浆造纸研究

为探究桑条高产栽培方式，以湖桑32号为材料研究了肥料用量、栽植密度、基桩年龄及留条数对桑条生物量的影响，结果表明施有机肥30 000 kg/hm2、栽植密度30 000株/hm2的栽培方式下，桑条生物量相对最高。同时为了分析桑条在造纸工业的利用价值，以桑树、毛白杨、沙兰杨、大官杨、泡桐5种树种进行制浆造纸物理强度试验，发现桑条多数物理强度指标表现优异，通过改良化机浆制浆，桑条机浆的理化性质符合国家标准，桑条漂白浆性能优良，该结果可为桑条高产栽培及造纸资源的开发利用奠定基础。

Research on High Yield Cultivation of Morus alba and Its Pulping and Papermaking

In order to explore the high yield cultivation method of Morus alba, the effects of fertilizer application, planting density, the age of foundation pile and the number of remaining strips on the yield of Morus alba were studied with Husang 32 as the material. The results showed that under the condition of organic fertilizer application 30 000 kg/hm2 and planting density 30 000 plants/hm2, the yield of Morus alba was relatively high. Meanwhile, in order to analyze the utilization value of Morus alba in the papermaking industry, the physical strength of pulping and papermaking was tested with 5 species of Morus alba, Populus tomentosa, Populus canadensis cv. Sacrau 79, Populus daknensis, and Paulownia. It was found that most of the physical strength indexes of Morus alba were excellent, and the physical and chemical properties of Morus alba slurry met the national standards through the improvement of chemical machine slurry making andthe Morus alba bleaching pulp had excellent performance. Above results laid a foundation for the high-yield cultivation of Morus alba and the development and utilization of paperrmaking resources.