Vegetable Lists
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Symptoms and Control techniques of Botrytis cinerea in lettuce
A reader in Jiangsu asked, what are the symptoms and control methods of lettuce gray mold? Answer: Botrytis cinerea of lettuce mainly harms leaves and stems and can be infected from seedling stage to adult stage. Get sick at the seedling stage. The leaves and young stems rotted in the form of water immersion, and the diseased part was covered with gray mildew layer. The leaves are infected. Start with mature leaves near the ground.
2018-09-12 -
Control techniques of Brown spot and Black spot of lettuce
Lettuce brown spot and black spot are considered to be mainly harmful to leaves. The leaf spot of brown spot shows two symptoms: one is water-stained at first, then gradually enlarged into round or irregular shape, brown to dark gray spot, ranging from 2mm to 10mm in diameter. Another kind is dark brown disease spot, the edge is irregular, the periphery has the water stain shape halo. Tide.
2018-09-12 -
High-yield cultivation techniques of lettuce
Lettuce seeds are grayish white or dark brown achenes, with a thousand seeds weighing about 0.8 to 1.2 grams. Before sowing, 70% dimethazone was used to treat the seeds at 0.3% of the seed weight. Lettuce seed germination requires a lower temperature, about 4 degrees Celsius seeds can germinate, so it can be sown in late March. Before sowing, the seedling bed was watered thoroughly.
2018-09-12 -
Characteristic description and control methods of lettuce rot
Pathogen Pseudomonascichorii,P.marginalis,P.viridiflava symptoms, also known as lettuce pseudomonas rot or bacterial leaf spot, is a bacterial disease. The plants in the early heading stage were easy to get sick, first the leaf margin was flooded, and gradually changed from light brown to dark green, and some mesophyll tissues withered.
2018-09-12 -
Control of lettuce rot
The disease is mostly infected from the petiole or root of the rhizome, and it is initially water-stained yellowish brown soft rot with a foul smell. Sometimes soft rot begins at the edge of the outer leaf or at the top of the bulb, and in severe cases the root pith and bulb rot. Germs spread through watering or insects, invading from the wounds and cracks of the plant. The optimum temperature for disease occurrence is 2.
2018-09-12 -
Seedling raising of lettuce cultivated in greenhouse in winter
Selection of ① varieties: varieties with strong cold tolerance, disease resistance and adaptability, such as Emperor, Salinas, Dahu 659, etc., and fertile sandy loam with strong ability of water and fertilizer conservation should be selected in seedling bed. ② seedling bed preparation: because the lettuce seeds are small, the seedling bed farming requirements are strict, the soil preparation should be fine, and the bed soil should be fine and flat. Every 10.
2018-09-12 -
Efficient cultivation of zucchini and cauliflower in greenhouse
Zucchini seedlings were raised with Zaoqing first generation variety. Raise seedlings in a nutrition bowl in the greenhouse, using 300 grams of seeds per mu. Soak seeds and accelerate germination to dew and sow seeds, 1 seed per bowl, cover 1.5 cm thick loose nutrient soil, cover with plastic film. Raise the temperature as much as possible before emergence and keep it at 30: 33 ℃ during the day. Cool down properly after finishing the seedling, during the day.
2018-09-12 -
Five keys to the cultivation of broccoli in spring open field
When broccoli is planted in spring open field, its growth and development is in the season when the temperature is getting higher and the diseases and insect pests are becoming more and more serious. As long as we grasp the five key points in cultivation, we can achieve high yield and high efficiency, and meet the requirements of foreign businessmen. First, sowing seeds at the right time. Planting cauliflower in spring open field can be used black and green with strong resistance, high temperature resistance, compact and neat ball setting, east.
2018-09-12 -
Key points of cultivation techniques of open field broccoli in spring
When broccoli is planted in open field in spring, its growth and development is in the season when the temperature is getting higher and the diseases and insect pests are becoming more and more serious. However, in cultivation, as long as we grasp the following five key technologies, we can achieve high yield and high efficiency, and meet the market demand. 1. Sow seeds at the right time. Planting cauliflower in open field in spring can be resistant to disease and high temperature.
2018-09-12 -
Efficient multiple cropping of cabbage, sweet potato seedlings, eggplant and cauliflower
Lettuce likes cold environment and is neither cold-resistant nor heat-resistant. Therefore, if you plant lettuce well, you should master the following technical links. First, the selection of varieties. When growing lettuce, we should choose varieties with good cold and heat tolerance and good stress resistance, such as ball lettuce, glass lettuce, mosaic lettuce and Caesar. Second, soil.
2018-09-12 -
Incidence regularity and control points of broccoli virus disease
Virus disease is the main disease of broccoli, which is common and serious. Now the incidence law and control methods of the disease are introduced as follows: first, the incidence regularity in winter does not grow cruciferous vegetables, the virus overwintered on stored cabbage, cabbage, radish or overwintering spinach, and planted cruciferous vegetables in winter.
2018-09-12 -
Efficient planting of eggplant, lettuce and broccoli
Green cauliflower, also known as broccoli, is a kind of health vegetable with complete nutrients and high economic value. it has a long supply period, can be frozen and dehydrated in addition to fresh food, and has high production efficiency. First, the variety selection ① Green Ridge: the growth period is 100mi 120d, the growth potential is strong, the plant is tall, the lateral branch growth is medium.
2018-09-12 -
Cauliflower planting technique
Cauliflower downy mildew is a fungal disease caused by parasitic downy mildew of flagellate subphylum. The oospores of the pathogen overwintered in the soil with the diseased plant, and spread in the field with wind and rain after overwintering. The most suitable climatic conditions for the disease were temperature 20: 24 and relative humidity above 90%. The disease is more serious when it is rainy, foggy or stagnant in the field.
2018-09-12 -
Pollution-free control of aphids in cauliflower vegetables
Virus disease is the main disease of broccoli, which is common and serious. Now the incidence law and control methods of the disease are introduced as follows: first, the incidence regularity in winter does not grow cruciferous vegetables, the virus overwintered on stored cabbage, cabbage, radish or overwintering spinach, and planted cruciferous vegetables in winter.
2018-09-12 -
How to plant broccoli in winter
Broccoli, also known as broccoli, green cauliflower, with fleshy, fat and tender flower branches composed of flower heads for food, complete nutrients, high nutritional value; broccoli likes temperature and cool climate, humid environment, anti-inflammatory heat, drought, not resistant to frost; the optimum temperature for seed germination is 15 ℃ 30 ℃, the optimum temperature for plant growth is 20 ℃, and the flower head is formed.
2018-09-12 -
Production and control methods of heterochromatic flower bulbs in broccoli
Broccoli, also known as green cauliflower, broccoli, like cool climate, the summer sowing cultivation techniques are introduced as follows: 1. Pre-preparation (1) varieties. The first generation hybrid varieties with early maturity, strong stress resistance and the highest yield were selected. The main varieties are jade crown, super jade crown, ten thousand green and so on. (2) parcels. Rich in organic matter is required.
2018-09-12 -
Key points of water management in broccoli
In the slow seedling stage, the seedlings should be watered in time to promote the return of seedlings. The water should be properly controlled after survival, which is beneficial to the depth of the root system. In the middle and later stages of growth, that is, the peak growth period of leaf clusters and the period of flower bud development, the water demand is larger. In case of drought, it should be watered in time, usually once every 4-5 days, and the border surface can be covered with straw or weeds to reduce water evaporation.
2018-09-12 -
Efficient planting of two kinds of broccoli
(1) the adaptability of broccoli is stronger than that of cauliflower in cultivation mode and season, and there are many varieties. According to different climate, different varieties can be cultivated in four seasons with annual supply. (2) sowing and raising broccoli is a high-grade fine vegetable with expensive seeds. The nursery bed must be carefully prepared, fertilized and done.
2018-09-12 -
Seedling raising technique of broccoli (broccoli)
Broccoli is the main vegetable export crop in Zhejiang Province, and the perennial planting area of broccoli is about 10,000 hectares. However, as the sowing season of broccoli is in the period of high temperature and typhoon activity from July to September, how to make full use of the limited growing season to cultivate strong seedlings has become the key to broccoli production, processing and export trade. Like.
2018-09-12 -
How to plant broccoli for high quality and high yield?
Broccoli, also known as broccoli, green cauliflower, with fleshy, fat and tender flower branches composed of flower balls for food, complete nutrition, high nutritional value, crisp and tender texture, refreshing and palatable, loved by consumers. Broccoli likes warm and cool climate, humid environment, anti-inflammatory heat, drought, not resistant to frost; the suitable temperature for seed germination is 15 Mel.
2018-09-12