Biological improvement

Biological improvement of saline and alkaline land in Xinjiang

新疆生物改良盐碱地效益研究

Biological improvement of the AM opens a new research field and allows it to be used broadly in clinical practice .

而羊膜的生物学改良为羊膜的应用开辟了新的研究领域，具有广泛的临床应用前景。

Biological improvement of saline and alkaline land mainly combines crop production and livestock raising in a proper manner to improve land fertility and then raise economic benefits of saline and alkaline land .

生物改良盐碱地主要是通过将种植业与养殖业有机的结合起来，培肥地力，从而提高盐碱地（盐渍化土地、碱化土地）的经济效益。

Biological techniques and improvement of vegetable varieties

生物技术与蔬菜品种的改良

Continuous cropping obstacles have been seriously restraining the sustainable development of protected vegetable production . Biological mediation and improvement on continuous cropping soil is an effective approach alleviating continuous cropping obstacles .

连作障碍严重制约设施蔬菜生产和可持续发展，对土壤进行生物修复和改良是减轻连作危害的有效途径。

Study on biological strategies of the improvement and utilization of salt wasteland in Yellow River Delta

黄河三角洲盐荒地改良和利用的生物学对策研究

Functional genomics of rice and the following large-scale genetic engineering will have to depend on high efficient genetic transformation . Therefore genetic transformation technology of rice has become important foundation of molecular biological research and genetic improvement of rice .

水稻功能基因组研究以及后续的大规模基因工程都必将依托于高效的水稻遗传转化，因此水稻遗传转化正越来越成为水稻分子生物学研究和遗传改良的重要技术基础。

This paper is a summary of the authors ' several years ' researches in this field , including : the accomplishment of XJ 1 multi functional photo electric quality detector for biological microscopes and its improvement ;

本文是笔者多年来研究成果总结，包括了已研制出的XJ－1型生物显微镜多功能光电质检仪及其改进；