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中稻大苗的优势分荚及其利用………··,…………4(7) 专 论 六优杂交粳稻的混杂原因及其防止途径··”“……·4(10) 陆地棉铃数、铃重和衣分率的遗传参数研究……4(13)宁镇扬丘陵山区的土地资源开发与土壤问题……1(1)棉花一次追肥对棉铃
The advantages of mid-season rice seedlings and its use of pod ......... ··, ............ 4 (7) monograph hybrid hybrid japonica rice and its prevention reasons ·· “” ...... 4 (10) cotton bolls , Boll weight and clothing percentage of genetic parameters of the research ...... 4 (13) Yang Zhen hills and mountains of land resource development and soil problems ... ... (1) a cotton top dressing cotton boll