The occurrence and prevention of damping-off

Seedling damping-off disease occurs in all parts of the country. It damages the seedlings of various flower seedlings and can cause seedling death. Symptoms Seeds or young shoots are infected when they are not unearthed and rot. They appear rot at the seedling stage. The surface of the stem or the base of the surface shows water-stained lesions. The diseased part is yellowish-brown and curled. It can spread to the upper and lower parts of the plant. . The disease develops rapidly and the tissue disintegrates. The young stems are wilting and lodging, but the leaves are green in the short term. If the environment is wet, white cottony moulds will grow on the soil surface of the diseased part and nearby areas. The etiological agent is some of the fungi in the genus Pythium. Common are Pythium aphanidermatum and Pythium debari. The lowest temperature for the growth of both Pythium species is 5-6°C, the optimum temperature is 26-28°C, and the maximum temperature is 36-37°C. High humidity is highly susceptible to morbidity, and is more prone to saprophytic diseases. It can rot in the soil for 4 years. Pythium is a soil inhabiting bacteria that produces long-term rot in the soil and forms oospores to pass through undesired environments. It is a soil-borne disease, mainly oospores in the soil, mycelium in the soil, or other organic matter. On the rot, mixed in the compost during winter, the germs are mainly spread by water and human horticultural operations. Disease conditions High humidity is the main condition for the onset of seedlings. In the Yangtze River basin in China, there is plum rain in May and June, which is conducive to the growth and spread of germs, but it is not conducive to the growth of seedlings, resulting in the decline of disease resistance of seedlings and aggravation of the disease. In addition, the lack of sunlight, continuous cropping, improper choice of nurseries (such as low-lying earth, heavy earth, once occurred damping-off, and no thorough disinfection), poor quality of soil preparation, application of compost with mixed pathogens that have not been decomposed by high temperature, sowing Improper collection can lead to morbidity. Prevention 1, selection. Select a higher terrain, drainage is better, non-sticky, disease-free or mildly ill nursery, do not use old bed soil. 2, fine soil preparation, deep plowing, application of net fertilizer. 3, soil disinfection. Formalin fumigation, that is, three weeks prior to sowing, the surface of the pine soil, 360-milliliter formalin solution plus 9-27 kg of water per square meter of soil (according to bed soil dry and wet), After evenly spraying the diluted drug solution, cover it with plastic film, remove the film after covering it for one week, and loosen the soil to allow the drug to evaporate completely. At least two weeks after sowing, the seeds can be sown. 4, suitable for sowing. Under possible conditions, it should try to avoid the low temperature period, and it is better to avoid the rainy season one month after the seedlings sprout. 5, pharmaceuticals. In the early stage of disease, the diseased seedlings were first removed and then concentrated. Then, 70% thiophanate-methyl wettable powder 1000 times or 25% benzoin 800-1000 times, or 1:1: 120-170 Bordeaux mixture was sprayed on the seedling base. Can also be used to plant ash, lime (8:2) after mixing sprinkled at the base of the seedlings.



Common GoJi Berries

Common GoJi Berries come from Ningxia.Qinghai.Xinjiang. Since the GoJi Berries are picked and carefully sorted by size and quality our mission is to provide our customer with the highest possible quality without any contaminant.

Available 

Common GoJi is available in different types of shapes and sizes, usually we deliver the size 220/280/320/350 and  so on, but can also supply other sizes. GoJi is also available as a powder or juice powder!

Product Description

Specfication:

 

Type:

dried Common Goji Berry

Size:

220grains, 280grains, 320grains, 350grains, 360grains,380grains, 500grains,580grains,600grains

Taste:

Sweet

Payment & Shipping Terms:

T/T or D/P at sight.

Packaging:

Bulk 4X5KGS/CTN; 11MTS/20GP 2X10KGS/CTN; 11MTS/20GP;12.5MTS/20GP

Minimum Order Quantity:

500 Kilograms

 Packaging & Shipping

1. Bulk 4bags*5kgs/CTNS; 11MT/20GP

2.As clients requirements



 

Conventional Goji Berry

Conventional Goji Berry,Original Goji Berry,Conventional Wolfberry,Dried Wolfberry

NINGXIA HONG RISING BIOLOGICAL TECHNOLOGY CO.,LTD. , http://www.hongrisinggoji.com