First, the causes of dead seedlings and identification There are many reasons for the emergence of dead seedlings in wheat, such as diseases, underground pests, water pollution, drug damage and so on. However, from this year's point of view, the death of wheat seedlings is mainly caused by root rot, followed by underground pests. Wheat root rot has developed rapidly in Huanghuai wheat area in recent years. The reasons for the rapid development of this type of disease are many. The promotion of non-resistant varieties, the promotion of a single variety in large areas, the narrow genetic base of the species used in production, and the unscientific operation of fertilizers have all contributed to the rapidity of this disease. development of.
Wheat root rot, also known as wheat root rot leaf spot, black embryo disease, blue death, etc., mainly consists of Fusarium oxysporum, Fusarium oxysporum, Fusarium moniliforme, Plasmodiopsis gondii, Alternaria, Botrytis Caused by other fungi, it is a disease complexed by various bacteria. Under normal circumstances, pathogenic bacteria in winter wheat, barley, rye, oats and a variety of grasses and weeds in the disease overwintering soil, become the primary infestation of wheat root rot in the following year. The bacteria can survive in the soil for 2 years. With the occurrence of the disease in successive years, the amount of seeds in diseased fields has increased year by year. When the temperature after sowing reached 10°C～20°C, the spores of the pathogenic bacteria germinated and infested rapidly, resulting in the onset of seedling stage. The degree of seedling damage increased with the increase of the amount of seed bacteria. Soil moisture is too low or too high, fertilizer and water are insufficient, disease resistance is decreased, nitrogen fertilizer is excessive, and sowing is too early or too deep, which makes the disease worse. The temperature has been high this autumn, and the number of soil and seed germs has increased. This is the main cause of the fall of this year's wheat. As the temperature drops, the disease will gradually disappear, but in the spring of next year, we should pay attention to prevention and treatment.
Wheat root rot can be infected during the whole growth period. The main symptoms are yellow-brown to brown-black fuscia on the coleoptile after seedlings become infected. The lesions continuously enlarge and brown, and the diseased tissue gradually necroses, resulting in black moldy matter. The roots rot, and the lower leaves of the seedlings turn yellow and gradually die off. In the adult stage, a fusiform small brown spot appeared on the leaves, and then expanded into an oblong or irregular light brown spot. Both sides of the lesions were gray and black molds, and the lesions merged into large spots and died, severe whole leaves. Withered. Spike ear disease appeared brown spots and white spikes.
Another cause of wheat dead seedlings is underground pests, mainly including golden needleworms, cockroaches and cockroaches. In recent years, the damage of wheat soil pests has become more and more serious, and the damage to wheat cannot be ignored. This year's high temperatures and partial drought are conducive to underground pest activities. The damage caused by underground pests to wheat seedlings is often a period of dead seedlings along the wheat line, and sometimes half of the wheat seedlings die and grow well.
The main difference between wheat disease deaths and insect deaths is that diseased dead plants gradually turn yellow and die, and insects die of dead green plants and can find pests in the underground soil of dead wheat seedlings.
Second, control methods Wheat root rot prevention measures are: 1, agricultural measures, selection of varieties resistant to root rot; do not stay in the sick field, do not plant seeds with black embryo; and beans, potatoes, cotton and other broadleaf Rational crop rotation; timely sowing, shallow sowing; organic fertilizer to fully decay, nitrogen, phosphorus, potassium and other fertilizers with a reasonable use. 2. Drug control, prevention and treatment of the disease a lot of drugs, but the disease should be the main prevention. The commonly used drugs include 70% mancozeb WP, 50% thiram WP, and 20% triadimefon EC, and are seeded at a seed weight of 0.2% to 0.3%. In the onset of wheat return to jointing stage, with 50% strong fungicides per acre 50 ml, 5 ml of Gaim, 40 kg of water spray, spray once every 7 to 10 days, continuous control of 2 or 3 times. In the early stage of flowering, it can be sprayed with 12.5% ​​Prunus edulis WP 2500-3000 times, or with 4.5% humicurem water killer per acre 30-35 grams or 5% Jinggangmycin water 10 grams plus water 40 kg Spray control, spraying once every 7-10 days. The spray should be sprayed and sprayed thoroughly to fully penetrate the roots and stems.
Prevention and control of underground pests: When the control rate of the underground pests is generally 3%, the drug control should be carried out. There are many drugs and methods for controlling underground pests, such as 5% phoxim granules for 2 mus or 3% phoxim granules for 3 to 4 kilos of mixed soil and 30 to 40 kilograms for ditching, or shunting and spreading. After the application, the site was smashed and covered with soil; 50% phoxim EC with 500 ml of water and 750 kg of water were applied to the ridge, and both can effectively control cockroaches and golden needle beetles. Use 95% crystals of trichlorfon 75 grams, dissolved in warm water, add 1.5 kilograms of water, mix in 5 kilograms of sauteed wheat bran, soybean cakes, corn grits, or boiled parboiled rice, millet, etc. ~6 hours Serve bait. The bait can be sprayed in the fields in the evening and it can effectively control cockroaches.
The cultivation of Conventional Goji Berry using the usual modern and traditional agricultural technologise. In Ningxia China you can see thousands of acres of goji berry cultivation base. In June each year, the goji berry trees bear agate-like fruits. After a series of machine processing, nutrition-rich Fresh Goji Berries are processed into the dried goji berrise for easy storage and transportation. Finally through the dealers like you and me, the magic goji berries into the plates around the world.
|
Category
|
SO2
|
Pesticide
|
|
Conventional goji berry
|
-
|
Meet CIQ inspection standards
|
Detailed specification
|
Type:
|
Dried Goji Berry
|
|
Size:
|
180pcs/50g, 220pcs/50g, 250pcs/50g, 280pcs/50g, 320pcs/50g, 350pcs/50g, 380pcs/50g , 420pcs/50g, 450pcs/50g, 500pcs/50g, 550pcs/50g, 750pcs/50g
|
|
Humidity/Moisture (%):
|
12%-14%; We could control according to customer`s requirements
|
|
Packaging
|
Inner package:250g/500g/1kg/3kg/5kg aluminum plastic bags ;
|
|
Outer package: cartons with capacity of 10kg,20kg,25kg;
|
|
10KG/CTN :10MTS/20GP; 20KG/CTN:11.5MTS/20GP
|
|
Payment & Shipping Terms:
|
By T/T, D/p at sight ,L/C
|
|
Delivery Time:
|
About 15 days
|
|
Storage:
|
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight
|
|
Shelf Life:
|
One year
|
|
OEM
|
Available
|
Goji production process
From farm to plate, in order to produce high quality goji berry, we set up a standard production process: Wash Fresh Goji Berry, Dried by Machine, Graduation, Sorted by Color and Get Rid of Bad Berries, Selected by Hand, Separate Hair and Dust, Second-time Selection by Hand, Ultravoilet Disinfection, Metal Detect, Bagging, Weighting and Plastic-envelop, Packing.
Test report
We can provide the third party pesticide residue testing according to your needs, detection items reference CIQ(China Inspection and Quarantine) standard as follows.The following is a sample of the test report and part of the test item.
Test report
We can provide the third party pesticide residue testing according to your needs, detection items reference CIQ(China Inspection and Quarantine) standard as follows.The following is a sample of the test report and part of the test item.
Extra service
· If you like, we can provide you with a wide range of promotional materials.
· We can also provide you with retail packaging of various materials.
Of course, if you have other procurement requirements, we can also help you find suppliers in china
Conventional Goji Berry
Conventional Goji Berry,Dried Conventional Goji Berry ,Dried Wolfberry,Fresh Goji Berries
NINGXIA UNION-SURE CO., LTD. , https://www.unionsuregoji.com