【導(dǎo)讀】點(diǎn)綴，既美化環(huán)境又能改善空氣質(zhì)量。但對綠色植物的維護(hù)、保養(yǎng)是需要花不少時間去完成的，當(dāng)。損失，因此設(shè)計(jì)一個家用自動澆花系統(tǒng)就十分必要。本系統(tǒng)采用單片機(jī)為核心芯片，利用濕度傳感器來采集土壤的濕度。過繼電器控制信息，驅(qū)動水泵控制電路工作，實(shí)現(xiàn)自動澆花。到的相關(guān)電路知識；完成開題報(bào)告；并完成一篇外文文獻(xiàn)的全文翻譯工作；土壤濕度檢測顯示部分是由YL-69土壤濕度傳感器、ADC0832模數(shù)轉(zhuǎn)換器、STC89C52單片機(jī)和LCD1602組成。水泵灌溉部分分為智能和手動兩部分：其智能部分是通過單片機(jī)程序設(shè)計(jì)澆水的上、下限值與感應(yīng)電路送入單片機(jī)。片機(jī)輸出一個信號使電磁閥關(guān)閉停止水泵澆水;手動部分是由通過關(guān)閉單片機(jī)電源，由外圍電路供電進(jìn)行澆灌。

　　

【正文】 G Indoor Temperature Control System Based on and Exploration in Laboratory,2021,:6366,71. [14]Nilesh R,Patel Rahul Microcontroller Based Drip Irrigation System Using Smart Sensor[J].. [15]SenLin Zhang,ZiXiang Wang,MeiQin Liu,MeiKang routing for delaysensitive underwater wireless sensor in China. Series F:Information Sciences,2021,114. 陜西理工學(xué)院畢業(yè)設(shè)計(jì) 第 18 頁 共 33 頁 附錄 A 英文文獻(xiàn)原文 Effects of watering potato plants before harvest and of curing conditions on developme t of tub r diseases during storage . HIDE, KATHRYN J. BOORER and SHARON M. HALL Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden,Herts AL5 2JQ, UK Accepted for publication: 31 January 1994 Additiomtl keywords: harvest date, silver scurf, black dot, black scurf, golding blotch, Solarium tuberosam L. Summary Plots of potato plants were watered to field capacity one day before harvest on three dates, andtubers from watered and nonwatered plots were stored at 7 ~ and 95% RH immediately orafter curing at 15 ~ either at 80% or 95% RH. Watering increased the severity of silver scurfafter storage when tubers were notcured. Curing at 80% RH decreased the disease andamounts were similar from watered and nonwatered plants. Black dot was increased bywatering whereas black scurf and golding blotch were decreased. Introduction The development of skin spot, silver scurf, black dot and black scurf during storagewas decreased by drying tubers immediately after harvest (Hide amp。 Boorer, 1991),and currently some growers in the UK practise dry curing. Air is blown through thebulk or boxes of tubers during the 1014 day curing period whilst tubers are at c. 15~ and before the temperature is lowered. But conditions at harvest differ betweenyears and drying as a method of decreasing disease may be less effective when tubers are muddy than when they have little adhering soil. An experiment was made in 1989 to investigate the effect of storing muddy tuberson disease development. On three dates plots were watered or not one day beforelifting and stored with or without curing. Materials and methods Sprouted seed tubers cv. Estima were planted into clay with flints soil at Rothamstedon 8 May 1989 in nine plots randomised in three blocks. Plots prised four rows 76cm wide of 12 plants 30 cm apart. Preemergence sprays of herbicide and of fungicideto protect against late blight were applied according to local practice, using tractorpassage rows between plots. On three dates 2row subplots in each plot were watered to field capacity using trickle irrigation, the other two rows were notwatered. Foliage was not desiccated. On the following day tubers were harvested by hand and three samples of 20 kg were taken from the produce of each subplot. At Sutton Bridge Experimental Station two samples were cured at 15 ~ either at80% RH (dry curing) or 95% RH, before storage at 7 ~ and 95% RH. The thirdsample was stored without curing. Low humidity was obtained by refrigeration andheating with continuous recirculation of air. After storage for six months, blemishingdiseases were recorded as trace (5% surface affected), moderate (530%) or severe(30%) on 50 tubers (5782 ram) from each sample. Silver scurf was prevalent andresults are presented as a disease score (Hall amp。 Hide, 1992). Fewer tubers wereaffected with other blemishes and these are given as % tubers affected. Results The season was dry and during the 10 days before harvest on 6 and 27 September and18 October, respectively , and mm rain was recorded. Tubers harvestedfrom nonwatered plots carried little soil whereas those from watered plots were verymuddy. After storage, severity of silver scurf increased with delay in harvest (Table 1 ), andthe increase was greater between the two dates in September than during thefollowing three weeks. Watering plots increased 陜西理工學(xué)院畢業(yè)設(shè)計(jì) 第 19 頁 共 33 頁 silver scurf when tubers were storedwithout curing and differences were significant with tubers harvested on 6 Septemberand 18 October. However, dry curing greatly decreased the disease and especially ontubers harvested on 6 September. With all harvest dates amounts of disease on drycured tubers were similar from watered and nonwatered plots. Curing at 95% RHdid not give significantly less silver scurf than no curing. Watering plots before harvest increased black dot and decreased black scurf andgolding blotch (Table 2), but the differences were significant only on tubers harvestedon 6 September. None of these blemishes were affected by curing. Table 1. Silver scurf (% score) on tubers from plots watered before harvest on three dates andcured at different humidities or not cured before storage for six months. Table 2. Black dot, black scurf and golding blotch (% tubers affected) on tubers from plots watered before harvest on three dates and stored for six months. Watering harvest dates SED（ 36df） 6 Sept 9 Sept 10 Oct Black dot None 27 40 40 Watered 17 43 48 Black scurf None 16 11 15 Watered 4 9 10 Golding blotch None 28 30 24 Watered 16 27 23 Discussion These results showed that in 1989 development of disease during storage wasinfluenced by wet mud on tubers. Silver scurf and black dot were increased, probablybecause the moist conditions at the tuber surface encouraged development ofsymptoms from recent infections, or new infections were initiated from inoculum inthe soil. Drying tubers decreased silver scurf and was equally effective on tubers from watered or nonwatered plots. This confirmed the effectiveness of the drying systemused in the experiment and indicates that mud adhering to tubers was dried beforethe tuber periderm dried. In an experiment in 1990, Firman amp。 Allen (1993) also applied water to plots two days before harvest but this did not affect the severity ofsilv