Pot seedling technique of broccoli to understand how to cultivate edible fungi

1. Eight technical points of raising seedlings with acupoint plate substrate.

1. Take good care of the seeds and select excellent varieties to plant.

2. 128-hole black plastic hole plate can be selected to raise seedlings.

3. To do a good job of disinfection is to disinfect a good point plate, which can be disinfected with lime water, which can be disinfected by pouring lime water into the soil pit or cement pool for one day, or by disinfecting it with 0.1% potassium permanganate solution spray or soaking. Second, to sterilize the seeds, you can choose 50% hydantoin WP800 solution to soak the seeds, or you can choose 50% Fumei WP to mix the seeds according to 0.3% of the seed quantity. Third, the matrix disinfection can be done with 50% Fumei WP700 solution or 75% chlorothalonil WP600 solution to disinfect the matrix. Fourth, the good vegetable shed disinfection off, can use 50% Fumishuang 700 times 10.6% Qingyuan protection 600 times in the greenhouse to carry out spray disinfection.

4. according to the formula of matrix, we can choose peat 0.67 square, vermiculite 0.22 square, perlite 0.13 square, super fertilizer 10 kg, mineral element brand potassium magnesium fertilizer 5 kg, calcium magnesium fertilizer 3 kg. The PH value should be controlled between 6 and 6.5.

5. The key to good sowing is that the sowing amount per mu should be controlled between 16g and 18g, and the sowing depth should be 0.5~0.7cm.

6. The first is to turn off the temperature and control the air temperature, the germination stage is 25: 30 ℃, the cotyledon stage is 18: 20 ℃, and the true leaf stage is 20: 22 ℃. The second is to turn off good light and moderate light is suitable. The third is to keep good nutrition, and the standards of nitrogen, phosphorus, special nail and micro-fertilizer are medium and small. Fourth, it is necessary to keep a good control of moisture, and to manage the moisture, the bottom water, germination stage, cotyledon stage, true leaf stage and seedling training stage should be mastered in more, medium, less, medium and less respectively. The fifth is to keep a good ventilation, and it is suitable for small, medium, medium and large ventilation management in germination stage, cotyledon stage, true leaf stage and seedling stage respectively.

7. Good control of diseases and pests to prevent sudden fall disease and blight can be sprayed with 72.2% Prik AS500~600X; 50% prohydantoin WPI000~1500X can be used to prevent black shank disease; 5% Regent SC2500 ~ 3000X can be used to control yellow stripe beetles; 2.5% cabbage SC1500~2000X can be used to control Plutella xylostella.

8. Sending good seedlings to the customs is a marriage medicine, and the marriage medicine should be determined according to the occurrence of local diseases and insect pests. Under normal circumstances, 64% Shiduji WP or 50% Fumishuang WP700X or 0.6% Qingyuanbao AS600X; can be selected. Second, potassium dihydrogen phosphate 700X can be used. The above drugs and fertilizers should be evenly sprayed on the vegetable seedlings 1-3 days before transplanting.

Second, the three characteristics of seedling raising with acupoint disk substrate.

Practice has proved that raising seedlings with acupoint disk substrate has three characteristics, such as "three improvements", "three reductions" and "three guarantees".

1. "three improvements" according to the investigation of seedling raising in winter in this area, compared with conventional seedling raising, the "three improvements" have been achieved. First, the emergence rate has increased by 15%, reaching 95%; second, the seedling rate has increased by 20%. Reached more than 90%; third, improved the quality of vegetable seedlings. According to the investigation, the plant height of vegetable seedlings reached 12cm, stem diameter 0.4cm, plant width 8cm, lower embryo 2.5cm; the number of true leaves was 2-3, and fresh green without diseases and insect pests, cotyledons were intact green; root system was developed, root color was milky white, root hair was rich, and root disk looseness was 3%. At the same time, it also improves the close intertwining between the root system and the substrate, which is not suitable for loose tuber, has strong pullability, is convenient for long-distance transportation and is suitable for mass production.

2. "three reductions" compared with conventional seedling raising, the "three reductions" have been achieved: first, the amount of seeds used has been reduced by 20%; second, the production cost has been reduced by 5%; and third, the damage caused by diseases and insect pests has been reduced by 15%.

3. The cultivation of high-quality vegetable seedlings with "three guarantees" has laid a good foundation for ensuring the actual demand of the planting plan of the base, improving the success rate of planting, and ensuring high, stable and high quality vegetable products. (author: 224600 Liutao Township Agricultural Service Center, Xiangshui County, Jiangsu Province)