Broccoli Plug Seedling Technology

First, the eight technical points of the plug matrix seedlings

1. Put good seeds and other excellent varieties for planting.

2, a good hole can choose 128 holes black plastic plug for nursery.

3, a good disinfection off the first is a good plug tray disinfection, lime water disinfection method can be taken in the pit or cement pond irrigation lime water disinfection of the plug for 1 day; can also be used to disinfect the drug, pharmaceutical selection 0.1 % Potassium permanganate solution is sprayed or soaked for disinfection. The second is to disinfect the good seeds and use 50% acetaminophen for WP 800 times soaking; it is also possible to use 50% of esthetic WP for seed dressing at 0.3% of the seed amount. The third is to disinfect the substrate, and the substrate can be disinfected with 50% Fumei WP700x or 75% chlorothalonil WP600x. The fourth is to disinfect a good vegetable shed, available 50% of the United States and the United States 700 times 10 0. 6% Qingyuanbao 600 times in the greenhouse spray disinfection.

4, the substrate matrix formula, the choice of peat 0.67 square, vermiculite 0.22 square, perlite 0.13 square, super large fertilizer 10 kilograms, mineral yuan brand potassium and magnesium fertilizer 5 kilograms, calcium magnesium fertilizer 3 kilograms mixed. PH value should be controlled between 6~6.

5, a good seeding Guanyi per acre sowing rate should be controlled between 16 to 18 grams; Second, the sowing depth of 0.5 ~ 0.7cm.

6, the good nursery Guanyi is a good temperature off, the temperature control, the germination period of 25 ~ 30 °C, cotyledon period of 18 ~ 20 °C, the true leaf period is 20 ~ 22 °C; the second is the good light off, It is appropriate to moderate light; the third is to make good nutrition, the criteria for the four elements of nitrogen, phosphorus, armor, and fertilizer are medium, small, small and small; the fourth is to turn the water off, and the water Management, its bottom water, germination period, cotyledon stage, true leaf stage, practice seedling period are respectively controlled in many, medium, small, medium and small. The fifth is to put a good ventilation, the germination period, cotyledon period, true leaf period, practice seedling ventilation management were small, medium, medium and large.

7, the prevention and treatment of pest control prevention of damping-off, damping-off can be used 72.2% Prec AS500 ~ 600X spray; to prevent black shank disease can be used 50% puproine WPI000 ~ 1500X spray; prevention and control of the yellow song beetle beetle available 5% Ruijin special SC2500~3000X spray; control diamondback moth can be used 2.5% dish Xixi SC1500 ~ 2000X spray.

8, to send good grafting is to send martial medicine, send the drug should be based on the occurrence of local pests and diseases, under normal circumstances, can choose to use 64% antivirus WP or 50% carbomer WP700X or 0.6% Qingyuan Bao AS600X; the second is to send the fertilizer, available potassium dihydrogen phosphate 700X. The above-mentioned sending of marrying herbs and sending of marrying fertilizer should be uniformly sprayed on the seedlings 1 to 3 days before transplanting.

Second, the three characteristics of the tray matrix seedlings

Practice has proved that the use of plug-hole substrate seedlings has three characteristics: "three improvements", "three reductions" and "three guarantees."

1. “Three Improvements” According to the winter nursery survey in the region, compared with conventional seedlings using plug-in substrate seedlings, “three improvements” were achieved. First, the emergence rate increased by 15% to reach 95%; The rate has increased by 20% to 90% or more; the third is to improve the quality of vegetable seedlings. According to the survey, the seedling height reached 12cm, stem diameter 0.4cm, plant width 8cm, lower embryo 2.5cm; true leaf number 2~3, and green no pests, cotyledons complete color green; roots developed, root color milky, Root hair is abundant, looseness of the root disk is 3%. At the same time, the roots of the plug seedlings are tightly packed with the substrate, which is not suitable for dispersal. It is easy to pull out and is convenient for long-distance transportation. It is suitable for mass production.

2. Compared with conventional seedlings, the "three reductions" using plug-hole substrate seedlings achieved "three reductions." First, seed use was reduced by 20%; second, production costs were reduced by 5%; and third, damage to pests and diseases was reduced. 15%.

3. The “three guarantees” for the cultivation of high-quality vegetable seedlings will ensure that the planting plan for the base needs to be implemented, ensure the success rate of planting, and ensure a good foundation for the high yield, stable production, and high quality of vegetable products.

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