摘要：【中文】本发明公开了实现SPWM及PWM波死区时间动态调整的系统及方法，可以给逆变器的PWM或者SPWM波添加任意长度高精度死区时间，利用该方案设计的具有Avalon总线的IP核，能够轻松的挂接到NiosII处理器上，使得死区时间的控制和调整非常方便。该系统包括处理器、Avalon总线以及IP核，所述IP核通过所述总线与处理器通信连接，所述IP核包括读写控制逻辑模块、延迟移位寄存器组、起始控制寄存器以及死区生成逻辑模块。 【EN】The invention discloses a system and a method for realizing SPWM and dynamic adjustment of PWM wave dead zone time, which can add any length of high-precision dead zone time to PWM or SPWM wave of an inverter. The system comprises a processor, an Avalon bus and an IP core, wherein the IP core is in communication connection with the processor through the bus, and comprises a read-write control logic module, a delay shift register group, a start control register and a dead zone generation logic module.

摘要：【中文】本发明公开了一种烤烟滴灌水肥一体化方法，包括以下步骤：1）铺设滴灌带：烟株移栽前单垄单行铺设滴灌带，滴头距离烟株生长位置9‑11cm；2）计算水溶肥用量：根据土壤肥力状况确定待施入水溶肥的总用量；3）根据烟苗生长期分7次滴灌不同浓度不同用量的水溶肥；本发明追肥阶段均采用水肥一体化的滴灌施肥，有效提高了肥料利用效率，同时控制化学肥料投入，增加烤烟生产效益，提升了烟叶品质及其工业可用性；显著减少了施肥过程中的人工投入，大大提高了施肥效率。 【EN】The invention discloses a drip irrigation water and fertilizer integration method for flue-cured tobacco, which comprises the following steps: 1) laying a drip irrigation tape: before the tobacco plants are transplanted, single-ridge single-row drip irrigation belts are laid, and the distance between a dripper and the growth position of the tobacco plants is 9-11 cm; 2) calculating the dosage of the water-soluble fertilizer: determining the total amount of the water-soluble fertilizer to be applied according to the soil fertility condition; 3) drip irrigation water soluble fertilizers with different concentrations and different dosages for 7 times according to the growing period of tobacco seedlings; according to the invention, water and fertilizer integrated drip irrigation fertilization is adopted in the topdressing stage, so that the utilization efficiency of the fertilizer is effectively improved, meanwhile, the input of chemical fertilizer is controlled, the production benefit of flue-cured tobacco is increased, and the quality and industrial availability of tobacco leaves are improved; the labor input in the fertilization process is obviously reduced, and the fertilization efficiency is greatly improved.

摘要：【中文】本发明公开了一种烤烟滴灌水肥一体化肥料，分为基肥和追肥，基肥包括复混肥（N‑P₂O₅‑K₂O=10‑12‑24）和普钙（过磷酸钙，P₂O₅≥16%），追肥包括硫酸钾（K₂O≥50%）和硝酸铵钙（N≥15%）；本发明还公开了一种烤烟滴灌水肥一体化肥料的施肥方法，采用先施基肥后施追肥的方法，控制氮肥基肥追肥比为3:7～5:5，追肥分两次施用，第一次追肥的量为总追肥量的30~50%。本发明优化了施肥的氮磷钾比例，在一定程度上减少了肥料用量，降低了氮肥成本投入；本发明基于较低的施肥成本和较少的肥料用量，即实现了优质烟叶原料生产，从而提高了烟叶的经济效益；本发明追肥阶段均采用水肥一体化的滴灌施肥，显著减少了施肥过程中的人工投入，进一步提高了施肥效率。 【EN】The invention discloses a drip irrigation water-fertilizer integrated fertilizer for flue-cured tobacco, which comprises a base fertilizer and an additional fertilizer, wherein the base fertilizer comprises a compound fertilizer (N-P)₂O₅‑K₂O = 10-12-24) and superphosphate (calcium superphosphate, P)₂O₅Not less than 16%), and additional fertilizer including potassium sulfate (K)₂O is more than or equal to 50 percent) and calcium ammonium nitrate (N is more than or equal to 15 percent); the invention also discloses a method for applying the water-fertilizer integrated fertilizer for flue-cured tobacco by drip irrigation, which is characterized in that a method of applying base fertilizer first and then applying additional fertilizer is adopted, the ratio of the base fertilizer to the additional fertilizer of the nitrogen fertilizer is controlled to be 3:7-5:5, the additional fertilizer is applied for two times, and the amount of the first additional fertilizer is 30-50% of the total additional fertilizer. The invention optimizes the proportion of nitrogen, phosphorus and potassium for fertilization, reduces the fertilizer dosage to a certain extent, and reduces the cost input of the nitrogen fertilizer; the method realizes the production of high-quality tobacco raw materials based on lower fertilization cost and less fertilizer consumption, thereby improving the economic benefit of the tobacco; the invention adopts water and fertilizer integrated dripping in the topdressing stageAnd the fertilizer is applied by irrigation, so that the labor input in the fertilizing process is obviously reduced, and the fertilizing efficiency is further improved.

摘要：【中文】本发明公开了一种基于窄株宽行栽培的烤烟高效灌溉方法，采用株间交替灌溉的方式进行灌溉，设定每行种植n株烟苗，n为大于或等于7的整数，整个生育期具有m个灌溉期，m为大于等于3的整数；第m次灌溉：当m为单数时，灌溉第1株和第2株之间中心位置、第3株和第4株之间中心位置、第5株和第6株之间中心位置......第n‑3株和第n‑2株之间的中心位置，第n‑1和第n株之间的中心位置；当m为双数时，灌溉第2株和第3株之间中心位置、第4株和第5株之间中心位置、第6株和第7株之间中心位置......第n‑4株和第n‑3株之间中心位置、第n‑2和第n‑1株之间的中心位置。本发明在保障烟株生长发育的前提下，减少了烟田灌溉水用量，提高了烤烟灌溉效益。 【EN】The invention discloses a flue-cured tobacco efficient irrigation method based on narrow-plant wide-row cultivation, which is characterized in that the method of alternating irrigation among plants is adopted for irrigation, n tobacco seedlings are planted in each row, n is an integer greater than or equal to 7, the whole growth period has m irrigation periods, and m is an integer greater than or equal to 3; and (3) irrigation for the m time: when m is singular, irrigating the central positions between the 1 st and 2 nd plants, between the 3 rd and 4 th plants, and between the 5 th and 6 th plants, the central positions between the n-3 rd and n-2 nd plants, and the central positions between the n-1 th and n-2 th plants; when m is a double number, the center position between the 2 nd and 3 rd plants, the center position between the 4 th and 5 th plants, and the center position between the 6 th and 7 th plants are irrigated. The invention reduces the amount of irrigation water used in tobacco fields and improves the irrigation benefit of flue-cured tobacco on the premise of ensuring the growth and development of tobacco plants.