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1 品种改良应用的现状分析镇江市是位于长江下游南岸的复合型农业生态区,总耕地面积为10.7万公顷,其中丘陵耕地占到63%。该区以水稻、小麦、油菜夏秋两熟种植为主,占到全年总播栽面积的80.1%,其它作物搭配种植玉米、棉花、黄豆、山芋及西瓜、草莓等。在品种的改良应用上,自七十年代末“三系”杂交优
Analysis of current situation of improved varieties application Zhenjiang is a compound agro-ecological zone located on the south bank of the lower reaches of the Yangtze River. The total cultivated area is 107,000 hectares, of which 63% is hilly land. The area is dominated by summer and autumn planting of rice, wheat and rape, accounting for 80.1% of the total sown area for the year. Other crops are used for planting corn, cotton, soybean, potato, watermelon and strawberry. Improve the application of varieties, since the late seventies “three lines ” hybrid excellent