不同助剂、喷头及喷雾压力对自走式喷杆喷雾机稻田喷雾效果的影响

以亿丰丸山3WP-500CN型号自走式喷杆喷雾机为研究对象，以诱惑红85作为指示剂，测定了6种喷雾助剂 (红太阳、倍力、迈丝、融透、印楝油和哈速腾)、3种喷头 (TEEJET-VP80015、ASJ-VP110015和LICHENG-VP11003) 以及3种喷雾压力 (0.2、0.4 和0.6 MPa) 对农药沉积利用率、药液雾化性能 (D₅₀值雾滴密度等)、雾滴分布均匀性等喷雾参数的影响，以及240 g/L噻呋酰胺悬浮剂对水稻纹枯病防治效果及水稻产量的影响。结果表明:采用TEEJET-VP80015喷头，在0.4 MPa喷雾压力条件下，助剂哈速腾雾滴分布均匀性显著高于其他助剂，变异系数为0.11，同时对雾滴估计沉积量 (45.74 μL/cm2) 与分布跨度 (1.29) 的影响显著高于其他助剂；助剂迈丝对雾滴密度 (103.78个/cm2) 和农药沉积利用率 (83.88%) 的影响均显著高于其他助剂。采用TEEJET-VP80015喷头，在未添加助剂条件下，不同喷雾压力对雾滴分布跨度、雾滴附着率和农药沉积利用率影响差异显著，其中在0.6 MPa压力下，分布跨度为1.18，雾滴附着率为33.32%，农药沉积利用率为78.19%。在未添加助剂、0.4 MPa喷雾压力条件下，喷头LICHENG-VP11003对雾滴分布均匀性的影响显著高于另外两种喷头，变异系数为0.12，同时对雾滴覆盖率 (69.37%)、雾滴估计沉积量 (42.77 μL/cm2) 和农药沉积利用率 (75.79%) 的影响也显著高于另外两种喷头。各测定条件下，240 g/L噻呋酰胺悬浮剂对水稻纹枯病的防治效果与雾化性能和雾化参数结果一致，其中添加助剂迈丝后防治效果达到89.27%，显著高于添加其他助剂，增大喷雾压力到0.6 MPa，防治效果达到88.67%，显著高于其他压力条件；采用TEEJET-VP80015喷头，在0.4 MPa喷雾压力下，水稻产量为8301 kg/hm2，显著高于人工喷雾。因此，助剂与喷头类型均对自走式喷杆喷雾机施药时的农药沉积利用率、雾滴分布均匀性以及雾滴参数和雾化效果有显著的影响，在适当的喷雾压力下添加助剂可提高农药的防治效果。     

喷洒部件及喷雾助剂对担架式喷雾机在桃园喷雾中的雾滴沉积分布的影响

采用诱惑红为指示剂研究测定了喷洒部件以及喷雾助剂Silwet408对电动担架式喷雾机在桃园喷雾中的雾滴沉积分布的影响,试验结果表明：采用喷枪大容量喷雾,当施药液量为250 L/667 m2时,有35.2%的药液流失到地面,喷雾雾滴在桃树冠层内膛和外膛的上/下层沉积比分别为0.59和0.62;当在喷雾液添加0.1%的Silwet408并把施药液量降低到125 L/667 m2时,药液在地面的流失率减少到21.2%,喷雾雾滴在桃树冠层内膛和外膛的上/下层沉积比分别为1.28和1.19,沉积分布均匀性明显提高。采用装配小喷片的组合喷头喷雾,当施药液量为250 L/667 m2时,有28.4%的药液流失到地面,当在喷雾液添加0.1% 的Silwet408并把施药液量降低到185 L/667m2时,喷雾压力分别为0.25 Mpa和0.35 Mpa时,药液在地面的流失率分别减少到18.5%和8.6%。研究测定结果表明,通过更换喷洒部件、增加喷雾压力、减少施药液量、添加喷雾助剂等措施可以显著减少果园喷雾中的药液流失率、提高喷雾雾滴在桃树冠层的沉积分布均匀性。     

喷雾参数对自走式喷杆喷雾机稻田喷雾农药利用率及雾滴沉积分布的影响

比较在不同喷雾压力和施药液量条件下,采用自走式喷杆喷雾机在水稻分蘖期、孕穗期、扬花期进行喷雾处理的农药利用率、沉积分布均匀性及水稻茎基部雾滴密度的差异,为建立自走式喷杆喷雾机在稻田的高效施药技术提供理论依据。以生物染料丽春红-G作为农药示踪剂,估测不同喷雾参数的农药利用率,并用变异系数、绝对份额比例值比较农药分布的均匀性。同时通过水敏纸收集水稻基部雾滴密度,分析不同喷雾参数下农药雾滴穿透水稻冠层的能力。结果表明:在水稻分蘖期,采用自走式喷杆喷雾机在喷雾压力为1.2 MPa、施药液量为375 L/hm^2条件下喷雾,每个采样点的丽春红-G的平均沉积量仅为0.11 mg,与喷雾压力为0.4 MPa、施药液量为300 L/hm^2条件下喷雾的沉积量相比减少了56.00%。在水稻孕穗期,当喷雾压力为1.2 MPa、施药液量为375 L/hm^2时进行喷雾处理,每个采样点的丽春红-G的平均沉积量达0.26 mg,显著高于其他4个处理。在水稻扬花期,不同喷雾参数间的沉积量差距减小。在合适的喷雾压力和施药液量时,自走式喷杆喷雾机在水稻分蘖期、孕穗期和扬花期进行喷雾处理,农药利用率分别达到40.57%、54.97%和55.50%。综合变异系数和绝对份额比例两个指标,采用自走式喷杆喷雾机在喷雾压力为0.8 MPa、施药液量为300 L/hm^2条件下喷雾,农药分布更均匀。喷雾压力对水稻基部雾滴密度有显著影响,在水稻生长中后期,当喷雾压力低于0.8 MPa、施药液量为225~375 L/hm^2时,水稻茎秆基部雾滴密度均小于30个/cm^2。研究结果表明,喷雾压力和施药液量对自走式喷杆喷雾机稻田喷雾的农药利用率、分布均匀性及水稻茎秆基部雾滴密度有显著影响。在水稻生长前期,不宜采用高压力大水量喷雾作业;在水稻生长中后期,为增加对水稻基部病虫害的防治效果,需提高喷雾压力。     

植保施药机械喷雾雾滴飘移研究进展

中国农药产品80％以上通过喷雾方式施用,药液从喷头到靶标作物过程中产生的随风飘移和蒸发飘移是农药造成人畜健康风险、生态环境破坏的重要因素之一.随着航空施药技术的发展,解决或减少喷雾雾滴飘移的问题成为施药技术研究的重点和热点.基于此,本文分别从喷雾雾滴(尺寸分布、黏度、表面张力、蒸气压、挥发性、密度等)、喷雾模式(喷头类...     

农药有效利用率与喷雾技术优化

提高农药的有效利用率是植保工作者非常关心的问题。本文阐述了农药有效利用率的广义和狭义涵义,并分析了农药使用中存在的药剂浪费、有效利用率低的问题。根据喷雾技术中的“剂量传递”过程,分析了农药有效利用率的狭义涵义,在春季果园和作物苗期,常规喷雾法的农药有效利用率只有20%~30%;在夏秋季果园和作物中后期,随着作物叶面积系数（LAI）的增加,农药的有效利用率可达到50%~60%。论文分析了造成农药有效利用率低的原因,提出喷雾技术的优化措施：（1）大田喷雾时采用机动喷杆喷雾替代背负式手动常规喷雾,可以改善雾滴沉积分布的均匀性;（2）添加喷雾助剂可以提高药液在靶标表面的润湿性;（3）优化雾滴粒径,采用细雾滴替代粗雾滴可以提高雾滴的中靶率;（4）降低施药液量可以减少药液流失;（5）加装挡板可以减少雾滴飘失等。通过以上技术的优化,可以大幅度提高农药的有效利用率,达到减量增效的目的。     

4种喷雾器在茶树上喷雾效果比较

［目的］ 筛选出适合茶树病虫害防治的新型喷雾器。［方法］ 对4种喷雾器进行额定喷雾压力下喷头流量、喷雾后雾滴在茶树有效沉积量以及地面流失量的比较试验。［结果］ 静电喷雾器3WBJ 16DZ在0.5 MPa喷雾压力喷雾时喷头流量最大,为1 290 mL/min;在不同高度及距施药者不同距离的雾滴沉积分布比较中,在小区内投放相同质量指示剂的情况下,静电喷雾器3WBJ 16DZ喷雾雾滴的沉积量约为其他3种供试喷雾器喷雾雾滴沉积量的2~3倍,而其地面流失率却小于对照背负式手动喷雾器。［结论］ 通过田间试验测定,静电喷雾器3WBJ 16DZ具有施药液量少、药液沉积量高等特点,适合在茶树上推广使用。     

不同喷雾因子对植保无人飞机防除小麦田杂草效果的影响

为明确施药液量、雾滴粒径大小和助剂等不同喷雾因子对极飞P-20植保无人飞机防除小麦田杂草效果的影响,于2019年以30 g/L甲基二磺隆悬浮剂+20%双氟·氟氯酯水分散粒剂为试验药剂,研究了上述喷雾因子对药剂雾滴沉积量以及对杂草防除效果的影响。药剂沉积量测定结果表明:低施药液量(11.25 L/hm^2)处理的沉积量最低,仅为0.67μg/cm^2,沉积率为22.37%,其次是大雾滴粒径,沉积量为1.07μg/cm^2,沉积率为35.62%,这2个处理药剂的沉积量略低于其他飞防处理(沉积量在1.16~1.52μg/cm^2之间,沉积率在38.73%~50.83%之间),但所有飞防处理的沉积量均明显低于常规喷雾器处理(沉积率为67.00%)。杂草防效结果表明:于小麦田应用极飞P-20植保无人飞机防除杂草,最适宜的施药液量为15.0~22.5 L/hm^2,在3个施药液量11.25、15.0和22.5 L/hm^2下,杂草总鲜重防效分别为74.8%、85.9%和88.2%;最适宜的雾滴粒径为中型,在小、中、大不同雾滴粒径下,杂草总防效分别为84.2%、86.2%和78.2%;最适宜的两种助剂是易滴滴F和迈飞,杂草总鲜重防效分别为88.9%和87.4%。农户常规喷雾药液沉积量为2.01μg/cm^2,杂草鲜重防效为87.6%。极飞P-20植保无人飞机在合适的喷雾因子下,具有省时省水的优势,虽然雾滴沉积量低于常规喷雾,但最终防效与常规喷雾差异不大。     

无人飞机低容量喷雾中影响药剂对水稻纹枯病和二化螟防治效果的因素分析

以广东极飞无人飞机P20为喷雾器械，以240 g/L噻呋酰胺悬浮剂和5%阿维菌素乳油为防治药剂，开展了无人飞机低容量喷雾中作业参数 (飞行高度和飞行速度)、喷雾用水量及喷头类型4个因素对水稻纹枯病、二化螟防治效果的影响评价。结果表明:在飞行速度的4个处理 (3、4、5、6 m/s) 中，药剂对水稻纹枯病、二化螟的防治效果均表现为飞行速度越慢，防效越高；在飞行高度的4个处理 (1.5、2.0、2.5、3.0 m) 中，药剂对水稻纹枯病、二化螟的防治效果均表现为作业高度为2.0和2.5 m的防效较高，且均显著高于作业高度为1.5和3.0 m的防效；在用水量的3个处理 (7.5、15.0、22.5 L/hm2) 中，药剂对水稻纹枯病、二化螟的防治效果均表现为用水量越多，防效越高，且三者之间的差异均达显著性水平；在两种类型的喷头中，离心式喷头 (极飞P20) 与压力式喷头 (大疆T16) 对水稻纹枯病、二化螟防效的影响均无显著性差异。根据以上结果优化的作业参数为:飞行速度3~4 m/s，飞行高度2~2.5 m，喷雾用水量为15.0~22.5 L/hm2。     

雾滴大小和覆盖密度与农药防治效果的关系

农药的雾滴粒径大小、覆盖密度、药液配制浓度对杀虫剂、杀菌剂和除草剂等的药效均有显著影响。根据农药雾滴粒径大小,可以将雾滴分为极细雾、细雾、中等雾、粗雾等。一定范围内,对于触杀作用的农药,采用细小雾滴喷雾对农作物病虫草害能取得更好的防治效果。雾滴粒径与农药药效之间存在生物最佳粒径的关系,农药喷雾技术理论研究认为,防治飞行的害虫适合使用10~50μm的细小杀虫剂雾滴,防治作物叶面爬行类害虫幼虫则适合采用30~150μm的杀虫剂雾滴,喷洒杀菌剂防治植物病害时适合采用30~150μm的雾滴,而喷洒除草剂时,则适合采用100~300μm的较粗大雾滴。在农药喷雾中,一定的雾滴覆盖密度就可以达到理想的防治效果,并不需要采用大容量淋洗式的喷雾方式,这是因为每个农药雾滴类似"炸弹",都有其"杀伤范围",称之为雾滴杀伤面积/杀伤半径(biocide area/biocide radius),且杀伤面积/杀伤半径与雾滴致死中密度(LN50)有关。本文论述了雾滴粒径大小、覆盖密度与杀虫剂、杀菌剂和除草剂药效之间的关系,进而分析农药雾滴致死中密度以及雾滴杀伤面积/杀伤半径,以期为农业生产、精准化施药提供参考。     

喷雾助剂及施液量对植保无人机喷雾雾滴在水稻冠层沉积分布的影响

为提高农药沉积率,利用黏度计、表面张力仪、药液润湿性测试卡、激光粒度仪测定不同喷雾助剂添加量对蒸馏水溶液性质的影响,并分析喷雾助剂及施液量对水稻冠层不同位置雾滴沉积密度、沉积量以及有效沉积率的影响。结果表明,添加喷雾助剂对蒸馏水溶液的性质有显著影响,与蒸馏水相比,当添加喷雾助剂为0.5%和1.0%时,雾滴体积中径变为108.9、98.7μm,表面张力降低64.7%、64.9%,黏度增加为2.3、2.3 m Pa·s,铺展系数为蒸馏水的74.5、58.5倍,能有效促进雾滴铺展并避免药液流失;植保无人机喷施试验结果显示,增加施液量可显著提高雾滴沉积密度,添加喷雾助剂可以显著提高雾滴沉积量以及有效沉积率,当施药量为13.5 L/hm~2且添加1.0%喷雾助剂时,雾滴在水稻冠层的有效沉积率最大,为48.9%。     

A gas-liquid chromatographic method to determine size spectra of droplets of an aerially applied non-volatile spray mix deposited on kromekote® cards

A non-volatile oil-based spray mix of a low-vapour-pressure insecticide, aminocarb, containing an oil-soluble red dye was applied at a dosage rate of 70 g AI in 1-5 litre ha^?1, using a fixed wing aircraft equipped with four ?Micronair’?® AU3000 atomizers, over a 1000 × 500 m spray block selected in Bathurst, New Brunswick, Canada. Spray was applied twice, at an interval of five days, to provide a total dosage rate of 140 g AI in 3.0 litre ha^?1. Spray mass recovery was assessed on glass plates and droplets were collected on ?Kromekote’?® cards, both at ground level. The stain sizes were grouped into different categories. The area containing the stains was excised, and the aminocarb present was quantified by gas-liquid chromatography (GLC). The mass of aminocarb per droplet in each stain size category was evaluated. From the mass, the spherical droplet diameter (d), number and volume median diameters (D_N.5 and D_v.5 respectively), a new parameter [mass (of aminocarb) median diameter] (D_M.5), and the droplet size spectra were calculated. The D_M.5 for the first application was 56 μm, which was identical to the D_v.5. whereas the D_N.5 was smaller at 45 μm. The corresponding values for the second application were: D_M.5 = D_v.5 = 63 μm, but the D_N.5 was 53 μm. Because the spray mix was non-volatile, all the droplet size spectra parameters were identical both at spray release height and at ground level. The present study has provided, for the first time in the literature, a novel method to determine directly the spherical diameters of the droplets deposited on artificial samplers, without having to go through the tedious procedures of spread factor measurements under laboratory conditions. In fact, the present study has made it possible to calculate spread factors under field conditions, by using the stain diameters measured and the spherical diameters calculated from the aminocarb concentration levels.     

喷雾压力和药液流量对井冈·枯芽菌在水稻叶片定殖的影响

研究了施药机具不同工作压力和药液流量对生物农药井冈.枯芽菌在水稻叶片上定殖数量及活性的影响。盆栽试验结果表明:担架式机动喷雾机、机动弥雾喷粉机和背负式机动喷雾器对生防菌的活性无不利影响。其中担架式机动喷雾机工作压力超过2.5 MPa以上有利于生防菌的定殖;机动弥雾喷粉机同一风速挡、不同流量挡的处理中,流量挡达到2.0 L/m有利于生防菌的定殖。同时生防菌在水稻叶片上定殖数量与水稻纹枯病的防效呈正相关的关系。     

Effect of spray application technique on spray deposition in greenhouse strawberries and tomatoes

BACKGROUND: Increasingly, Flemish greenhouse growers are using spray booms instead of spray guns to apply plant protection products. Although the advantages of spray booms are well known, growers still have many questions concerning nozzle choice and settings. Spray deposition using a vertical spray boom in tomatoes and strawberries was compared with reference spray equipment. Five different settings of nozzle type, size and pressure were tested with the spray boom. RESULTS: In general, the standard vertical spray boom performed better than the reference spray equipment in strawberries (spray gun) and in tomatoes (air‐assisted sprayer). Nozzle type and settings significantly affected spray deposition and crop penetration. Highest overall deposits in strawberries were achieved using air‐inclusion or extended‐range nozzles. In tomatoes, the extended‐range nozzles and the twin air‐inclusion nozzles performed best. Using smaller‐size extended‐range nozzles above the recommended pressure range resulted in lower deposits, especially inside the crop canopy. CONCLUSIONS: The use of a vertical spray boom is a promising technique for applying plant protection products in a safe and efficient way in tomatoes and strawberries, and nozzle choice and setting should be carefully considered. Copyright © 2009 Society of Chemical Industry     

Effects of nozzle type and spray angle on spray deposition in ivy pot plants

BACKGROUND: Fewer plant protection products are now authorised for use in ornamental growings. Frequent spraying with the same product or a suboptimal technique can lead to resistance in pests and diseases. Better application techniques could improve the sustainable use of the plant protection products still available. Spray boom systems—instead of the still predominantly used spray guns—might improve crop protection management in greenhouses considerably. The effect of nozzle type, spray pressure and spray angle on spray deposition and coverage in ivy pot plants was studied, with a focus on crop penetration and spraying the bottom side of the leaves in this dense crop. RESULTS: The experiments showed a significant and important effect of collector position on deposition and coverage in the plant. Although spray deposition and coverage on the bottom side of the leaves are generally low, they could be improved 3.0–4.9‐fold using the appropriate application technique. CONCLUSIONS: When using a spray boom in a dense crop, the nozzle choice, spray pressure and spray angle should be well considered. The hollow‐cone, the air‐inclusion flat‐fan and the standard flat‐fan nozzle with an inclined spray angle performed best because of the effect of swirling droplets, droplets with a high momentum and droplet direction respectively. Copyright © 2010 Society of Chemical Industry     

喷头和施药液量对水稻植株上农药沉积和药剂防治效果的影响

为明确喷头及施药液量对水稻植株上农药沉积及药剂防治效果的影响,采用丽春红-G示踪法测定了4种喷头ST11001、ST11002、TR8001、TR8002在不同施药液量条件下喷雾农药在水稻植株上的沉积分布特性,并比较了4种喷头施用相同剂量的40%氯虫苯甲酰胺·噻虫嗪WDG对水稻纵卷叶螟Cnaphalocrocis medinalis和褐飞虱Nilaparvata lugens的防治效果。结果表明,选择ST11002和TR8001喷头,在施药液量300 L/hm~2条件下喷雾,单株水稻上的丽春红-G沉积量分别达到27.55μg和28.16μg;选择ST11001和TR8002喷头,在施药液量900 L/hm~2条件下喷雾,单株水稻上的丽春红-G沉积量仅分别为12.27μg和14.86μg。喷头和施药液量的改变不影响水稻植株上农药沉积分布特性,均为上层沉积量中层沉积量下层沉积量。当施药液量从300 L/hm~2增加到900 L/hm~2,4种喷头ST11001、ST11002、TR8001、TR8002喷雾在水稻基部的雾滴密度分别增加了8.21、8.54、7.79和9.69倍;但在相同施药液量下,4种喷头在水稻基部的雾滴密度没有显著差异。同一剂量下,喷头和施药液量不同组合的防治效果间差异显著。表明针对稻田不同防治对象,选择合适的喷头及施药液量将有助于提高农药沉积及防治效果。     

飞防助剂和施药液量对植保无人飞机喷施雾滴沉积和棉花蓟马防效的影响

为明确飞防助剂和施药液量对植保无人飞机喷施在棉花冠层的雾滴沉积和对棉花上蓟马防效的影响,选择倍达通、功倍、杰效丰和迈丝4种飞防助剂,设置3种施药液量,通过田间试验研究了植保无人飞机喷施25%噻虫嗪水分散粒剂后其在棉花冠层的雾滴密度、覆盖率、沉积量和雾滴均匀性以及对棉花上蓟马的防效。结果表明,4种飞防助剂和3种施药液量对植保无人飞机喷施的雾滴沉积和蓟马防效均有显著影响。增加施药液量可显著增加雾滴在棉花冠层的密度与覆盖率,添加飞防助剂对雾滴密度的提升效果显著。4种助剂对农药雾滴在棉花冠层上、中、下部的覆盖率的影响趋势较为一致,与棉花冠层上部相比,对中、下部位覆盖率的影响较低。施药液量为2 L/667 m²时,添加倍达通、功倍、杰效丰、迈丝及无助剂对照的雾滴穿透性分别为46.0%、49.1%、33.6%、36.1%和44.3%,该施药液量下各处理雾滴穿透性均较好。随着施药液量增加,药后1、3、7 d对棉花蓟马的防效也显著提升。在相同施药液量下,25%噻虫嗪水分散粒剂药液中添加飞防助剂倍达通和杰效丰相较于功倍和迈丝,对棉花蓟马具有更高的防治效果。试验结果为植保无人飞机防治...     

Effect of spray volume on the deposition, viability and infectivity of entomopathogenic nematodes in a foliar spray on vegetables

BACKGROUND: Spray volume can influence the amount of free water on the leaf surface and subsequently the ability of entomopathogenic nematodes (EPNs) to move. In this study, an investigation was made of the effect of spray volume (548, 730 and 1095 L ha⁻¹) on the deposition, viability and infectivity of EPNs against Galleria mellonella on savoy cabbage, cauliflower and leek. RESULTS: Increasing spray volume decreased nematode deposition on 7.1 cm² leek leaf discs at a 15° angle with the spray nozzle. Although the number of living nematodes observed on leek after 240 min of exposure was not significantly different between the low-volume application (548 L ha⁻¹) and the high-volume application (1095 L ha⁻¹), a greater infectivity was obtained in the latter application. The higher number of droplets deposited on the leek discs in the high-volume application may have stimulated nematode movement. No significant effect of spray volume was observed on the relative deposition of Steinernema carpocapsae on the bottom side of cauliflower and savoy cabbage leaf discs. In spite of the low S. carpocapsae deposition on the bottom side of the savoy cabbage discs, high infectivity was obtained against G. mellonella. Using the lowest spray volume on savoy cabbage, infectivity decreased with increasing exposure time, while infectivity was not affected by exposure time when a spray volume of 730 L ha⁻¹ or more was used. CONCLUSION: Spray volume is an important application parameter, as it affects nematode infectivity. Future research should investigate the effect of spray volume in the field and its influence on the effect of adjuvants. Copyright © 2012 Society of Chemical Industry     

Reduced spray programs for Drosophila suzukii management in berry crops

Since the arrival of Drosophila suzukii M. (Diptera: Drosophilidae), field applications of broad-spectrum insecticides have increased in berry crop production to protect susceptible fruits from infestation. Field studies were conducted from 2011 to 2013 to determine whether alternate row middle or border spray programs could manage D. suzukii as well as complete sprays and have less of an impact on non-target arthropods. Four raspberry sites and one blueberry site were alternate row middle and border sprayed, respectively. Adult and larva counts of D. suzukii were compared to conventional complete spray programs. Non-target arthropods were evaluated 7 d post-harvest. In both reduced spray trials, no differences in mean adult numbers and larvae of D. suzukii were detected between treatments. Mean counts immediately after sprays (i.e. 3–12 d after treatment) were also similar in complete and alternate row sprays. Both reduced spray strategies had significantly more Stethorus spp.; additionally, alternate row sprays had significantly more Psyllobora spp. These reduced pesticide strategies are additional tools to consider in D. suzukii IPM programs that can reduce the area sprayed, application time, and input costs while conserving natural enemies.     

一种基于智能手机的航空喷雾质量检测系统研发及应用

为改进和优化航空喷雾作业质量检测技术,进一步提高检测准确性与效率,本文通过对比分析国内外雾滴采集与检测技术,提出了基于智能手机拍照方式获取雾滴沉积图像,并利用数字图像处理技术,测算雾滴体积直径的新方法。设计开发了基于智能手机的航空喷雾质量检测系统(J-02),该系统主要包括便携式检测仪、专业检测软件、数据管理平台三部分。最后,通过与雾滴沉积分析系统(IDAS PRO)和显微镜(Leica M80)等传统检测手段对比测试验证表明,基于智能手机的航空喷雾质量检测系统适用于航空喷雾质量现场检测,且检测结果准确可靠。