Control measures for pests and diseases of large and small spring crops

1. Wheat rust According to the prevalence and occurrence characteristics of wheat stripe rust, the key to chemical control is to grasp the initial application of the disease, control the disease center, and prevent the spread and spread of the disease. First, check early and early treatment before spring. In recent years, the onset period of autumn seedlings has been advanced. Generally, the initial period is from December to January. Therefore, it is necessary to check early and treat early before spring. Once the diseased or diseased group is found, it should be immediately applied and controlled to reduce the source of bacteria and prevent it. Spread and spread, for the spring prevention and control to take the initiative; Second, the post-spring disease epidemic spread period should be timely application of drug control. As the temperature rises after the spring, the disease spreads during the epidemic period, otherwise it will affect the control effect; the third is the application of spikes at the ear stage. In the case of re-occurrence or late March to mid-April, when the temperature is low and rainy, the application should be applied at the ear stage to control the ear protection to ensure the wheat yield. The fourth is to select the pesticides on the road to improve the application level. Optional medicinal agent for strip rust: 25% Parylene WP 50 g/mu, or 20% rust powder 30 g/mu, 20% Harvest emulsifiable concentrate 50 g/mu, or 57.6% crown bacillus 30 g / acre, or 20% good to think WP 30-600 g / acre, or triazolone 100 g / a.

2, the mildew disease wheat heading flowering period temperature is 15 ° C, there are continuous rain more than 3 days, is conducive to disease prevalence, a drug control in the initial flowering period. 50% carbendazim WP 100g/mu, or 70% thiophanate-methyl WP 100g/mu.

3, red spider wheat wheat jointing booting stage, 100 strains of more than 500 heads should be carried out for prevention and treatment. Use 15% broom emulsifiable concentrate 15-20 ml/mu, or 2% eliminating emulsifiable concentrate 20-30 ml/mu, or 25% more pyrethroid 50-75 ml/mu.

4. Wheat aphids In the wheat heading stage, the rate of sorghum plants is 20-30%, and the number of sorghum plants is more than 500. Use 10% Dagong WP 10g, or 30% chlorpyrifos 30ml / acre, or 20% good winter emulsifiable 10-15ml / acre.

5, rapeseed sclerotinia disease in the early flowering stage of rapeseed or leaves on the leaves of the diseased plants accounted for 5-10%, can be used for chemical control. 50% quick-drying WP 50g/mu, or carbendazim WP 100g/mu.

Second, the main spring pest control measures and pesticides in Dachun 1, rice blast prevention and control measures 1, the selection of disease-resistant varieties. 2, seed disinfection, rice seeds pre-soaked with water for 12 hours, and then soaked with 20% tricyclazole 1000 times solution (5 kg of liquid immersion 3.5-4 kg of grain) soaked for 24 hours, picked up and washed, and then germinated sowing. 3. When transplanting, take the medicine to the field, use 1000% of the 20% triazole wettable powder, or 75% of the Fengdeng wettable powder 1000-2000 times. 4, leaf mites prevention: seedlings found in the timely use of 20% triazole WP powder with 100 grams / mu, 5% Fengdeng WP powder with 20-25 grams / acre. 5. Prevention of neck sputum: For rice fields and adjacent rice fields where leaf mites have occurred, old wards and high-fertilizer fields that have occurred over the years, use 75% Fengdeng WP powder for 20-25 g/mu in rice rupture period.

2. Rice aphids are in the late to mid-May of May, and control the green fields of Putian and Honda in the late April, or the rice fields in the field. It will be prevented once again from the end of July to the middle of July. Use 55% special killing wettable powder for 50g/mu. Or 18% insecticidal double water agent 200 ml / mu, or 80 insecticidal single soluble powder 40 g / mu, or 5% insecticidal and large granules 1-1.25 kg / mu, there is a paddy field directly spread evenly in the rice field.
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Coriolis Mass Flow Meter

Sealand is a trustworthy manufacturer of Coriolis mass flow meter, Coriolis mass flowmeter, Coriolis meter, Coriolis flow meter and Coriolis flowmeter, ATEX, CE & IECEx approved.


The flow meter size covers from DN03 to DN150, and bigger models are being developed. The main specification is as follows.

Model No.

Diameter

(mm)

Max. flow rate

(kg/min)

MWP.

(MPa)

Accuracy grade

(%)

Zero stability

(kg/h)

CG-03

03

6

4

0.1/ 0.2/ 0.5

0.012

CG-06

06

18

4

0.1/ 0.2/ 0.5

0.04

CG-15

15

50

25

0.1/ 0.2/ 0.5

0.12

CNG-20

20

120

25

0.1/ 0.2/ 0.5

0.36

CG-25

25

200

4

0.1/ 0.2/ 0.5

0.62

CG-40

40

500

4

0.1/ 0.2/ 0.5

1.60

CG-50

50

1000

4

0.1/ 0.2/ 0.5

2.38

CG-80

80

3000

4

0.1/ 0.2/ 0.5

7.05

CG-100

100

3600

4

0.1/ 0.2/ 0.5

12.00

CG-150

150

8000

4

0.1/ 0.2/ 0.5

50.00



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