. dong bei nong zuo wu bing chong hai fang zhi gong zuo shou ce. botany. æ¡å¼¯æ²çé»è²ç¸±æ¡ã触è§çµ²ç¶ã åµ:é»è¤è²,çå½¢ã å¹¼è«ï¼ï¼Lç½è²ï¼ä¼é¿5毫米左å³ã åï¼æ·±è¤è²ã é¡¿:ç½è²,裸è¹ãè¸é¨æ«ç«¯å¸¦æåå弯æ²çéåº çæ´»ä¹ æ§ - 以æè«è¶å¬ãè¶å¬æè«5æä¸æ¬å¨å¤§è±ç° åºç¾ï¼é£å®³ä¹å¶åçé¿ç¹ï¼æåä¹ä¸º, å害é¨ååå°çåæ´¼ç¶ãçå¶çåºå 为害çå¶,被害ç¶æ¯ä¸ä¸ªä¸ªçå°åç³ä¸ å¨å¹²æ±çæ¥å-£,æè«ä¸ºå®³å¾ä¸¥é æè«äº§åµå¨ä½ç©æ ¹é éè¿ ,çå表é¢,åµç¶ä¸å¨å·¦å³å-µ åãå¹¼è«å-µåºååä¸ä¾µ å ¥æ ¹ç¤ä¸-,ææ«ç¤å §å±¬ï¼ é¨åå°½,åªå©ä¸^^ï¼ï¼ æ®å® ;è¢«å®³æ ¹, ç¤åè²,幷容<^p^ft#i æèçãå½±å 大è±ççè² è¥¿26 äºæ¡å¨å¶è«1.å¹¼è« å¹·éä½å¤§è±å¨è¼ªä½ä¸-çåä½
. dong bei nong zuo wu bing chong hai fang zhi gong zuo shou ce. botany. æ¡å¼¯æ²çé»è²ç¸±æ¡ã触è§çµ²ç¶ã åµ:é»è¤è²,çå½¢ã å¹¼è«ï¼ï¼Lç½è²ï¼ä¼é¿5毫米左å³ã åï¼æ·±è¤è²ã é¡¿:ç½è²,裸è¹ãè¸é¨æ«ç«¯å¸¦æåå弯æ²çéåº çæ´»ä¹ æ§ - 以æè«è¶å¬ãè¶å¬æè«5æä¸æ¬å¨å¤§è±ç° åºç¾ï¼é£å®³ä¹å¶åçé¿ç¹ï¼æåä¹ä¸º, å害é¨ååå°çåæ´¼ç¶ãçå¶çåºå 为害çå¶,被害ç¶æ¯ä¸ä¸ªä¸ªçå°åç³ä¸ å¨å¹²æ±çæ¥å-£,æè«ä¸ºå®³å¾ä¸¥é æè«äº§åµå¨ä½ç©æ ¹é éè¿ ,çå表é¢,åµç¶ä¸å¨å·¦å³å-µ åãå¹¼è«å-µåºååä¸ä¾µ å ¥æ ¹ç¤ä¸-,ææ«ç¤å §å±¬ï¼ é¨åå°½,åªå©ä¸^^ï¼ï¼ æ®å® ;è¢«å®³æ ¹, ç¤åè²,幷容<^p^ft#i æèçãå½±å 大è±ççè² è¥¿26 äºæ¡å¨å¶è«1.å¹¼è« å¹·éä½å¤§è±å¨è¼ªä½ä¸-çåä½ç©çä½ç¨ã èçå¹¼è«å¨åä¸-åè»,è¹æ7天左å³ã é²æ´½æ³ï¼ 头è¤è²ãè¸æ¿åèéæ¿å ä¸è³ª. 2.è¹3.å¹¼è«ä¸ºå®³ç¶ ãæ©èå°,å¯ä»¥åå°æ æ è«åçæ°é,åè¼å害ç¨åº¦ 2'å´æ20%æ»´æ»´æ¶ä¹³åS00å液ï¼æ5 "6^6"ç²å¯¹é²æ²»æè«é½å¾ææãç¨è¯éæ¯å§30, è½|ãï¼/^1%"666"æ20%"666"ç²æç§ï¼æ¯2000æ¤ç§å-ç¨è¯10æ¤(å³ Ké为ç§å-éçååä¹äº)ï¼å¯ä»¥åå°å¹¼è«ä¸ºå®³æ ¹ç¤ï¼å¢å 大è±äº§ ä¸ m â. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original zhong guo nong ye ke xue yuan dong bei nong ye yan jiu suo zhong guo nong ye ke xue yuan guo shu yan jiu suo.
Size: 1482px × 1686px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany