First, the symptoms: peanut root rot can occur in all growth stages of peanuts. Peanuts can cause disease and rotten buds before emergence, and root rot and seedlings are caused by seedling damage; root rot, stem rot and pod rot are caused by adult planting, and the shoots of the diseased plants are short and poorly grown. The leaves turn yellow and eventually the whole plant withers. When wet, the diseased part produces pink mold, which is a conidia of the pathogen.
Second, prevention and treatment: 1 , select resistant varieties, turn the seeds before sowing, remove the discoloration, mildew, damaged seeds, seed dressing with 50% tetrachlorophenyl hydrazine wet powder, or 50% carbendazim WP powder mix Seed disinfection. 2 , rational rotation, deep turn to change the soil. 3 , do a good job in fertilizer management, timely clearing ditch drainage and dehumidification after rain; pay attention to the application of fully decomposed manure, appropriate application of phosphorus and potassium fertilizer to promote plant robustness and enhance disease resistance. 4, combined plowing before planting, 96% of 5000 times per acre spray hymexazol liquid 50 kg, 70% or applicator Dexon WP 2.5 kg, 70% metalaxyl or MnZn 2.5 kg, kill Kill residual bacteria in the soil. If onset is already available to 30% hymexazol agent 1000 times, 800 times 70% thiophanate-methyl, carbendazim 500 times ultrafine 50%, 50% iprodione 1000 times, the enemy 70% Nixon 1000 times or 23% copper ammonia complex 400 times spraying, each 7--10 days, and even spray 23, careful attention spray the roots, stem base portion, the ground spraying.
Drainage Strip (named Plastic vertical drain) is like a cross parallel strips made of polyethylene and polypropylene as core board and wrapped by non-oven fabric as filter layer. Core board is to play a supportive role and drain the leaking water and air out of ground. Plastic vertical drain is inserted into soft soil foundation by drilling machine, under the upper part of the prepressure loading. The pore water in soft soil will be drained out through plastic vertical drain to the horizontal drainage system, and drain outward to accelerate the soft ground consolidation.
Features for Plastic vertical drainage strip:
1. Good Filtration performance, smooth drainage, drainage effect is guaranteed.
2. Good strength and ductility, can be suitable foundation deformation capacity without affecting drainage performance.
3. The section size of drain is small, so disturbance is small too to the foundation when in operation.
4. Fast construction and working time is short. Each drilling machine can finish over 15,000 meters, which greatly save cost and shorten the construction period.
5. Flexible construction and low requirement to construction environment, applicable to variety of soft soil foundation and super soft soil foundation reinforcement treatment.
Specification and Technical data:
Packing: Woven bag / PE bag packing or at customers' request.
Shipping: FOB Changsha, customized shipping-terms and appointed port accept.
Drainage Strip
Drainage Strip,Drainage Sheet Strip,Stainless Steel Strip,Geotextile Composite Drainage Strip
Shandong Tianhai New Materials Engineering Co., Ltd , http://www.chinatinhy.com