At the end of May each year, the eggplant rootstocks in greenhouses begin to enter the nursery stage. The quality of seedlings is directly related to the quality and yield of eggplants grown in greenhouses. Since the eggplant rootstock nursery is in the high temperature season and the seedlings are difficult to nurse, and the nursery experience is summarized for many years, the author believes that the current eggplant rootstock nursery should pay attention to the following six aspects:
First, select the rootstock seeds to increase the germination rate.
The quality of the rootstock seed directly affects the quality and yield of the grafted eggplant. First, rootstock varieties with strong root resistance, strong disease resistance, and good cold resistance performance should be selected, such as Tolong Tower and Toluubam. Good rootstock seeds also have good germination rates.
Second, the treatment of dead seedlings.
The nursery bed should be built on a high ground. It should be protected from rain and it must be protected against damage such as poultry. Generally use old shed soil to raise seedlings on the spot, but it should be noted that the old shed soil is continually replanted for many years. The seedbed bed bacteria are more likely to cause dead seedlings. Once the seedlings are killed, it is too late to control the drug again. It is recommended that seedlings should be treated with carbendazim or thiram prior to nursery and sprayed for disease prevention.
Third, the nursery fertilizer should be applied less or not.
Nursery bed fertilizer to be appropriate, the former is not fertile shed soil can be applied or less applied; raw earthworms can be applied as appropriate to part of the decomposed fertilizer or commodity organic fertilizer, but not too much, to prevent more fat burning seedlings.
Fourth, watering and sowing.
Nursery beds should be watered more than 10 days in advance. The water should be thoroughly sprayed and aired after a period of time. Before planting, the seedbed should be carefully smashed again. Avoid the seedbed is very wet to the next species, about half a centimeter after sowing is better, the soil is too thick and poor.
Fifth, shade and ventilate.
Generally from 9:00 am to 5:30 pm, two shades of shade nets must be provided. The daytime temperature should be 27°C-32°C, and the night temperature should be as low as possible. After covering the shade net, it is still necessary to adhere to the wind to prevent steaming. After the buds are out, the shade nets can be gradually withdrawn and ventilated at night to ventilate the seedlings to raise the temperature difference.
Sixth, prevention is very important.
After 3-4 days of sowing, the seedlings can be drawn out. At this time, special attention should be paid to the spraying of hymexazol or Precise to prevent the disease and prevent infection. The spray should be sprayed once every 7 days to ensure the quality of nursery. After the seedlings are flushed out, they can be watered according to the degree of wetness and moisture on the surface of the seedlings, but it is necessary to prevent seedlings from being stimulated by cold water and affecting growth.
As long as these six problems are paid attention to in production, the eggplant rootstock seedlings planted will be strong, and the high quality and high yield of grafted eggplant will also be guaranteed.
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