1ã€å°½å¯èƒ½é€‰å¾®ç”Ÿç‰©å†œè¯æˆ–生化制剂
ã€€ã€€å¾®ç”Ÿç‰©å†œè¯æˆ–ç”ŸåŒ–åˆ¶å‰‚ï¼ˆå†œç”¨æŠ—ç”Ÿç´ ï¼‰æ—¢èƒ½é˜²ç—…æ²»è™«ï¼Œåˆä¸æ±¡æŸ“环境和毒害人畜,且对于天敌安全,害虫ä¸äº§ç”ŸæŠ—è¯æ€§ã€‚如hdé’虫èŒ6å·ã€äº•å²—éœ‰ç´ ã€æ˜¥é›·éœ‰ç´ ã€å†œç”¨é“¾éœ‰ç´ ã€bt乳剂ã€å†œæŠ—120ç‰ã€‚
  2ã€ç§¯æžæŽ¨å¹¿åœŸå†œè¯
  利用éžè¯å‰‚ç‰©è´¨æ¥æŽ§åˆ¶ç—…è™«çš„å‘生é‡ã€‚如800——1000倿¶²çš„å°¿æ´—åˆå‰‚(1ä»½å°¿ç´ ã€0.2份洗衣粉ã€100份水混åˆè€Œæˆï¼‰ã€çŸ³ç°çƒŸè‰æ°´ï¼ˆçŸ³ç°å°‘许浸泡烟è‰ä¸€æ˜¼å¤œè¿‡æ»¤è€Œæˆï¼‰ç‰ï¼Œå¯¹èšœè™«çš„防治效果达85%以上;用100——150å…‹ç¢³é…¸æ°¢é“µåŠ æ°´15公斤喷雾,å¯é˜²æ²»é»„瓜霜霉病;667平方米喷1.5——2%的过磷酸钙液å¯é˜²æ²»è¾£æ¤’上的棉铃虫ã€çƒŸé’虫ç‰ï¼›å°†æ»äº¡çš„èœé’虫æ£çƒ‚åŠ æ°´è¿‡æ»¤ï¼Œç”¨æ»¤æ¶²å–·é›¾å¯é˜²æ²»èœé’虫和地è€è™Žç‰å®³è™«ï¼›å°†20——30å…‹å¤§è’œã€æ´‹è‘±æ£ç¢Žæˆæ³¥çŠ¶ï¼ŒåŠ 10å…¬æ–¤æ¸…æ°´å……åˆ†æ…æ‹Œï¼Œå–其过滤液进行喷雾,对蚜虫ã€çº¢èœ˜è››å‡æœ‰å¾ˆå¥½çš„防治效果。
  3ã€åˆç†ä½¿ç”¨åŒ–å¦å†œè¯
  (1ï¼‰ä¸¥ç¦æ–½ç”¨â€œä¸¤é«˜ä¸‰è‡´â€ï¼ˆå³é«˜æ¯’ã€é«˜æ®‹ç•™ï¼Œè‡´ç•¸ã€è‡´ç™Œå’Œè‡´çªå˜ï¼‰çš„化å¦å†œè¯ã€‚如甲胺磷ã€å‘‹å–ƒä¸¹ã€1605ã€1059ã€3911ã€æ°§åŒ–乿žœã€æ€è™«è„’ã€æ€æ‰‘磷ã€å…å…å…ã€ddtã€ç”²åŸºå¼‚柳磷ã€ç”²èƒºç£·ã€ç£·åŒ–锌ã€ä¹…æ•ˆç£·ã€æ°Ÿä¹™é…°èƒºã€æœ‰æœºæ±žåˆ¶å‰‚ç‰ã€‚有些农è¯è™½ä½Žæ¯’但残留长,也ä¸å®œåœ¨è”¬èœä¸Šä½¿ç”¨ï¼Œæ–½è¯ä¸€å¹´åŽä½œç‰©ä¸ä»æœ‰æ®‹ç•™ã€‚(2)选择高效ã€ä½Žæ®‹ç•™çš„化å¦å†œè¯ã€‚æ— å…¬å®³è”¬èœç”Ÿäº§å…许é™é‡ä½¿ç”¨æŸäº›ä½Žæ¯’化å¦å†œè¯ï¼Œä½†è”¬èœä½“内的有毒残留物质ä¸èƒ½è¶…è¿‡å›½å®¶è§„å®šæ ‡å‡†ï¼Œä¸”åœ¨äººä½“çš„ä»£è°¢äº§ç‰©æ— å®³ï¼Œå®¹æ˜“ä»Žäººä½“å†…æŽ’é™¤ï¼Œå¯¹å¤©æ•Œæ€ä¼¤åŠ›å°ï¼Œå¦‚æ•Œç™¾è™«ã€æ€çèŠé…¯ã€è¾Ÿèšœé›¾ã€å…‹èž¨ç‰¹ã€åŠŸå¤«ä¹³æ²¹ã€æ³¢å°”多液ã€dtã€å¤šèŒçµã€ç”²åŸºæ‰˜å¸ƒæ´¥ã€ç™¾èŒæ¸…ã€ä»£æ£®é”°é”Œã€ä¹™ç£·é“ã€ç¡«é…¸é”Œã€ç£·é…¸ä¸‰é’ ã€å¼±ç—…毒疫苗n14ç‰ã€‚(3ï¼‰æœ‰é’ˆå¯¹æ€§åœ°é€‰æ‹©è¯æ•ˆè¾ƒå¥½çš„ä¸ç‰æ¯’性农è¯ã€‚在采用低毒低残留农è¯ä¸èƒ½æ‰‘ç病虫害的情况下,å¯ç”¨ä¸ç‰æ¯’性农è¯ï¼Œä½†ä½¿ç”¨è¿™ç±»å†œè¯å¿…须注æ„ä¸¤ç‚¹ï¼šä¸€æ˜¯ä¸¥æ ¼æŒ‰ç…§å†œè¯å®‰å…¨ä½¿ç”¨è§„程施è¯ï¼Œä¸éšä¾¿å¢žåŠ æµ“åº¦å’Œæ–½è¯æ¬¡æ•°ï¼›äºŒæ˜¯é€‰æ‹©å…¶ä¸æ¯’性相对较低的è¯å‰‚,如æ€è™«åŒã€å¥½å¹´ä¸°ã€å·´ä¸¹ç‰ã€‚(4)选择特异性昆虫生长调节剂。如ç幼脲ã€å†œæ¢¦ç‰¹ã€ä¼ä¹å¾—ã€æŠ‘å¤ªä¿ç‰ï¼Œè¿™ç±»åŒ–å¦å†œè¯ï¼Œæ€è™«æœºç†æ˜¯æŠ‘制昆虫生长å‘育,使之ä¸èƒ½è„±çš®ç¹æ®–,其æ€è™«æ€§å¾ˆé«˜ï¼Œç”¨å¯¹äººç•œæ¯’性æžåº¦ä½Žã€‚
  二ã€å†œè¯ä½¿ç”¨
  1ã€å¯¹ç—‡ä¸‹è¯
ã€€ã€€åœ¨å……åˆ†äº†è§£å†œè¯æ€§èƒ½å’Œä½¿ç”¨æ–¹æ³•çš„åŸºç¡€ä¸Šï¼Œæ ¹æ®é˜²æ²»ç—…虫害ç§ç±»ï¼Œä½¿ç”¨åˆé€‚的农è¯ç±»åž‹æˆ–剂型。如扑虱çµå¯¹ç™½ç²‰è™±è‹¥è™«æœ‰ç‰¹æ•ˆï¼Œè€Œå¯¹åŒç±»å®³è™«èšœè™«åˆ™æ— 效;劈蚜雾对桃蚜有特效,防治瓜蚜效果则差;甲霜çµï¼ˆç‘žæ¯’霉)对å„ç§è”¬èœéœœéœ‰ç—…ã€æ—©ç–«ç—…ã€æ™šç–«ç—…ç‰é«˜æ•ˆï¼Œä½†ä¸èƒ½é˜²æ²»ç™½ç²‰ç—…ã€‚åœ¨é˜²æ²»ä¿æŠ¤åœ°ç—…è™«å®³æ—¶ï¼Œä¸ºé™ä½Žæ¹¿åº¦ï¼Œå¯çµæ´»é€‰ç”¨çƒŸé›¾å‰‚或粉尘剂。在气温高的æ¡ä»¶ä¸‹ï¼Œä½¿ç”¨ç¡«åˆ¶å‰‚防治瓜类蔬èœèŒ¶é»„螨ã€ç™½ç²‰ç—…,容易产生è¯å®³ã€‚
  2ã€é€‚期用è¯
ã€€ã€€æ ¹æ®ç—…虫害的å‘生å±å®³è§„å¾‹ï¼Œä¸¥æ ¼æŽŒæ¡æœ€ä½³é˜²æ²»æ—¶æœŸï¼Œåšåˆ°é€‚时用è¯ã€‚å¦‚è”¬èœæ’ç§æˆ–ç§»æ ½å‰ï¼Œåº”采å–è‹—æˆ¿ã€æ£šå®¤æ–½è¯æ¶ˆæ¯’ã€åœŸå£¤å¤„ç†å’Œè¯å‰‚拌ç§ç‰æŽªæ–½ï¼›å½“蚜虫ã€èž¨ç±»ç‚¹ç‰‡å‘生,白粉虱低密度时采用局部施è¯ã€‚一般情况下,应于上åˆç”¨è¯ï¼Œå¤å¤©ä¸‹åˆç”¨è¯ï¼Œæµ‡æ°´å‰ç”¨è¯ã€‚
  3ã€è¿ç”¨é€‚当浓度与è¯é‡
  ä¸åŒè”¬èœç§ç±»ã€å“ç§å’Œç”Ÿè‚²é˜¶æ®µçš„è€è¯æ€§å¸¸æœ‰å·®å¼‚ï¼Œåº”æ ¹æ®å†œè¯æ¯’性åŠç—…虫害的å‘ç”Ÿæƒ…å†µï¼Œç»“åˆæ°”候ã€è‹—æƒ…ï¼Œä¸¥æ ¼æŽŒæ¡ç”¨è¯é‡å’Œé…制浓度,防æ¢è”¬èœå‡ºçްè¯å®³å’Œä¼¤å®³å¤©æ•Œï¼Œåªè¦æŠŠç—…è™«å®³æŽ§åˆ¶åœ¨ç»æµŽæŸå®³æ°´å¹³ä»¥ä¸‹å³å¯ã€‚如防治白粉病对于抗病å“ç§æˆ–è½»å‘生时åªéœ€ç²‰é”ˆå®æ¯667平方米3——5克(有效æˆåˆ†ï¼‰ï¼Œè€Œå¯¹æ„Ÿç—…å“ç§æˆ–é‡å‘生时则需æ¯667平方米7——10克。å¦å¤–,若è¿ç”¨éšè”½æ–½è¯ï¼ˆå¦‚拌ç§ï¼‰æˆ–高效喷雾(如低容é‡ç»†é›¾æ»´å–·é›¾ï¼‰ç‰æ–½è¯æŠ€æœ¯ï¼Œå¹¶ä¸”æå€¡ä¸åŒç±»åž‹ã€ç§ç±»çš„农è¯åˆç†äº¤æ›¿å’Œè½®æ¢ä½¿ç”¨ï¼Œå¯æé«˜è¯å‰‚利用率,å‡å°‘ç”¨è¯æ¬¡æ•°ï¼Œé˜²æ¢ç—…è™«äº§ç”ŸæŠ—è¯æ€§ï¼Œä»Žè€Œé™ä½Žç”¨è¯é‡ï¼Œå‡è½»çŽ¯å¢ƒæ±¡æŸ“ã€‚
  4ã€åˆç†æ··é…è¯å‰‚
  采用混åˆç”¨è¯æ–¹æ³•ï¼Œè¾¾åˆ°ä¸€æ¬¡æ–½è¯æŽ§åˆ¶å¤šç§ç—…虫å±å®³çš„ç›®çš„ï¼Œä½†å†œè¯æ··é…è¦ä»¥ä¿æŒåŽŸè¯æœ‰æ•ˆæˆåˆ†æˆ–有增效作用,ä¸äº§ç”Ÿå‰§æ¯’å¹¶å…·æœ‰è‰¯å¥½çš„ç‰©ç†æ€§çŠ¶ä¸ºå‰æã€‚ä¸€èˆ¬å„ç§ä¸æ€§å†œè¯ä¹‹é—´å¯ä»¥æ··ç”¨ï¼›ä¸æ€§å†œè¯ä¸Žé…¸æ€§å†œè¯å¯ä»¥æ··ç”¨ï¼›é…¸æ€§å†œè¯ä¹‹é—´å¯ä»¥æ··ç”¨ï¼›ç¢±æ€§å†œè¯ä¸èƒ½éšä¾¿ä¸Žå…¶å®ƒå†œè¯ï¼ˆåŒ…括碱性农è¯ï¼‰æ··ç”¨ï¼›å¾®ç”Ÿç‰©æ€è™«å‰‚(如bt乳剂)ä¸èƒ½åŒæ€èŒå‰‚åŠå†…叿€§å¼ºçš„å†œè¯æ··ç”¨ã€‚
  5ã€ç¡®ä¿å†œè¯ä½¿ç”¨çš„安全间隔期
  最åŽä¸€æ¬¡ä½¿ç”¨å†œè¯çš„æ—¥æœŸè·ç¦»è”¬èœé‡‡æ”¶æ—¥æœŸä¹‹é—´ï¼Œåº”有一定的间隔天数,防æ¢è”¬èœäº§å“䏿®‹ç•™å†œè¯ã€‚é€šå¸¸åšæ³•是å¤å£è‡³å°‘为6——8天,春秋至少为8——11天,冬å£åˆ™åº”在15天以上,而且蔬èœåœ¨é£Ÿç”¨å‰åº”充分漂洗。Â
Pneumatic valve is a kind of valve controlled by air pressure, which is widely used in industrial automation control system. Its main applications include the following aspects:
1. Fluid control: pneumatic valve can be used to control the flow and direction of liquid or gas, such as controlling the flow in the pipeline, exhaust gas emission, etc.
2. Pressure control: pneumatic valve can be used to control the pressure of fluid, such as controlling the pressure of compressed air, regulating the pressure in the hydraulic system, etc.
3. Temperature control: pneumatic valve can be used to control the temperature of fluid, such as the temperature of heating or cooling system.
4. Automatic control: pneumatic valve can be linked with sensors, PLC and other equipment to realize automatic control, such as automatic production lines, robots, etc.
5. Safety control: pneumatic valve can be used for safety control, such as controlling emergency stop, preventing overload, etc.
In general, pneumatic valve plays an important role in industrial automation control system, which can improve production efficiency, reduce costs, and ensure safety.
Pneumatic Valve,Pneumatic Valve Types,Pneumatic Control Valve,Pneumatic Actuator Valve
WUXI KVC-VALVE , https://www.kvgatevalve.com