Barley cultivation techniques for beer

Beer-fed barley is a high-quality feed crop, with the advantages of early maturity, disease resistance, lodging resistance, cold resistance, high yield, and wide adaptability. The growth period is about 150--160 days. Mainly should grasp the following several technical measures:

1. Select good varieties: There are mainly 8640-1, V24, V06, 94DM3, Baomai 9, etc.

2, fine soil preparation, standardized cultivation: After harvesting rice, timely plowing fields, drying fields, Putian, so that the Tianping soil fine, pull the wire to divide the management of the ditch, the width of 5 feet wide, 1 meter wide groove.

3, timely sowing, reasonable dense planting: the requirements of November 15-25 sowing, per acre seeding volume of 10 kilograms, each sowing broadcast 6 lines, when sowed, said to plant, wide beam seeding, uniform sowing.

4, re-apply basic fertilizer, early application of fertilizer: base fertilizer is generally applied per hectare farmyard manure 1500-2000 kg, based on the application of 25% compound fertilizer 40 kg, 1 kg of zinc sulfate, borax 1 kg, fully mixed after sowing Distribute evenly, cover with a thin layer of soil and cover tightly. Two leaves and one heart per acre topdressing 10 kg of urea as manure, jointing season to see the amount of top dressing, seedlings can be poor per acre topdressing urea 5 kg, generally not in the late post fertilizer. For the higher groundwater table, phosphate fertilizer should be added to the base fertilizer.

5, scientific irrigation: beer feeding barley afraid of water and can not lack of water, in the sowing of dry fields, irrigation should ensure that the seedlings, top dressing can be combined irrigation water, jointing water, heading flowering water absorption is greater, should Ensure moisture supply. The lack of water in the early stage affected the emergence of tillers, and the lack of water in the middle stage affected the panicle differentiation. The lack of water in the later period had a greater impact on the 1000-grain weight and yield. Therefore, in each period should be combined with the actual situation, reasonable irrigation.

6, strengthen management, timely weeding: 3-5 days after sowing with 50% butachlor 200 ml / acre, watered 50 kg spray for pre-emergence weeding; two leaf one-hearted use of green mellon, wheat star, wheat grass net Follow the instructions to water 50 kilograms for spraying and weeding. In order to prevent and treat pests, it is necessary to prevent and treat rust and aphids with sprays of Triadimefon and insecticides at the end of tillering, jointing, and heading. In combination with pest control spraying potassium dihydrogen phosphate 150 g/mu.

7, timely harvest, so that nine yellow ten closed.

Ventilator block diagram
One. Main mechanical ventilation modes
(1) Intermittent Positive Pressure Ventilation (IPPV): positive pressure in the inspiratory phase and zero pressure in the expiratory phase. 1. Working principle: The ventilator generates positive pressure in the inspiratory phase and presses the gas into the lungs. After the pressure rises to a certain level or the inhaled volume reaches a certain level, the ventilator stops supplying air, the exhalation valve opens, and the patient's thorax Passive collapse of the lungs and exhalation. 2. Clinical application: Various patients with respiratory failure mainly based on ventilation function, such as COPD.
(2) Intermittent positive and negative pressure ventilation (IPNPV): the inspiratory phase is positive pressure and the expiratory phase is negative pressure. 1. How it works: The ventilator works both in the inspiratory and exhaled phases. 2. Clinical application: Expiratory negative pressure can cause alveolar collapse and cause iatrogenic atelectasis.
(3) Continuous positive pressure airway ventilation (CPAP): Refers to the patient's spontaneous breathing and artificial positive airway pressure during the entire respiratory cycle. 1. Working principle: Inspiratory phase gives continuous positive pressure air flow, and exhalation phase also gives a certain resistance, so that the airway pressure of inhalation and exhalation phases are higher than atmospheric pressure. 2. Advantages: The continuous positive pressure airflow during inhalation is greater than the inspiratory airflow, which saves the patient's inhalation effort, increases FRC, and prevents the collapse of the airway and alveoli. Can be used for exercise before going offline. 3. Disadvantages: great interference to circulation, large pressure injury of lung tissue.
(4) Intermittent command ventilation and synchronized intermittent command ventilation (IMV / SIMV) IMV: There is no synchronization device, the ventilator air supply does not require the patient's spontaneous breathing trigger, and the time of each air supply in the breathing cycle is not constant. 2. SIMV: There is a synchronization device. The ventilator gives the patient a commanded breath according to the pre-designed breathing parameters every minute. The patient can breathe spontaneously without being affected by the ventilator. 3. Advantages: It exerts its ability to regulate breathing while offline; it has less influence on circulation and lungs than IPPV; it reduces the use of shock medicine to a certain extent. 4. Application: It is generally considered to be used when off-line. When R <5 times / min, it still maintains a good oxygenation state. You can consider off-line. Generally, PSV is added to avoid respiratory muscle fatigue.
(5) Mandatory ventilation per minute (MMV) When spontaneous breathing> preset minute ventilation, the ventilator does not command ventilation, but only provides a continuous positive pressure. 2. When spontaneous breathing is less than the preset minute ventilation volume, the ventilator performs command ventilation to increase the minute ventilation volume to reach the preset level.
(6) Pressure Support Ventilation (PSV) Definition: Under the prerequisite of spontaneous breathing, each inhalation receives a certain level of pressure support, increasing the patient's inhalation depth and inhalation volume. 2. How it works: The inspiratory pressure begins with the patient's inspiratory action, and ends when the inspiratory flow rate decreases to a certain level or the patient attempts to exhale hard. Compared with IPPV, the pressure it supports is constant, and it is adjusted by the feedback of the inspiratory flow rate. Compared with SIMV, it can get pressure support for each inhalation, but the level of support can be set according to different needs. 3. Application: SIMV + PSV: used for preparation before off-line, can reduce breathing work and oxygen consumption Indications: Exercise the ventilator; prepare before going offline; the ventilator is weak due to various reasons; severe flail chest causes abnormal breathing. 5. Note: Generally not used alone, it will produce insufficient or excessive ventilation.
(7) Volume Supported Ventilation (VSV): Each breath is triggered by the patient's spontaneous breathing. The patient can also breathe without any support and can reach the expected TV and MV levels. The ventilator will allow the patient to be truly autonomous Breathing also applies to preparations before going offline.
(8) Capacity control of pressure regulation
(IX) Biphasic or bilevel positive pressure ventilation How it works: P1 is equivalent to inspiratory pressure, P2 is equivalent to breathing pressure, T1 is equivalent to inspiratory time, and T2 is equivalent to exhalation time. 2. Clinical application: (1) When P1 = inspiratory pressure, T1 = inspiratory time, P2 = 0 or PEEP, T2 = expiratory time, which is equivalent to IPPV. (2) When P1 = PEEP, T1 = infinity, P2 = 0, T2 = O, which is equivalent to CPAP. (3) When P1 = inspiratory pressure, T1 = inspiratory time, P2-0 or PEEP, T2 = desired controlled inhalation cycle, equivalent to SIMV.


Medical Positive Pressure Breathing Machine

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