51 advent, a lot of area air temperature of our country are successive and elevatory, if accompany rainfall again, field humidity increases, with respect to very easy eruptive wheat cauline radical corrupt is ill. Normally wheaten bine base after the 2nd height that corrupt comes on happens in complete get warm again after a cold spell the middle ten days of a month came in April in May the middle ten days of a month. Rate of diseased or infected plant achieves 60% above commonly, serious can amount to 84.2% . Cause serious reduction in production.
Endanger a feature
Wheaten bine base the earth that corrupt disease is a kind of model in wheaten production spreads disease. Also can travel through the seed. Bacteria spore can survive in soil hibernate, be in after temperature is appropriate edaphic surface bud, bacterium of cause of disease combines a ministry to invade from root ministry and rootstock commonly, invade catch wheat advocate bine and tillering bine, next as wheaten growth development expands to wheat cauline radical ministry. This disease is had for many times invade catch a characteristic.
Wheaten bine base corrupt is ill, belong to fungus sex disease. The apparent feature after early days is endangered is root ministry produces brown to change, section of root ministry 1-2 is shown Brown, serious when become puce, begin to die.
Big or humidity is medium the wheaten root ministry of later period may appear red or white mildew layer. Following ↓
If do not have seasonable prevention and cure, can direct expression is in later period period of form a vesicle, wheaten upside spic appears withered Bai Sui, spic small seed is little, root ministry breaks off easily phenomenon.
Plan of prevention and cure
Ill can of cauline radical corrupt weighs the incurable disease that is wheat, after coming on if do not have seasonable prevention and cure, later period closes absolutely almost, so farmer friend must put the emphasis on precaution, a few effective preventive sum up to everybody below:
1, rotate change of crops. The economic crop such as garlic of replant of the cropland that weigh disease, round green, cotton, soja. Old wheat - corn continuous cropping, successive perhaps a few years straw returns cropland, the pathogenic bacteria in body of incomplete of straw belt bacterium is accumulated ceaselessly in soil. This is wheaten disease of cauline radical corrupt erupts and the germ with more and more serious illness.
2, choose disease-resistant breed. Different breed turns over due and apparent difference to this disease. The seed with choice disease-resistant good gene this is undoubtedly most the way with efficient economy.
3, antiseptic is used to undertake handling to the seed before sowing. Can seminal bag garment or drug seed dressing. Drug can choose: Much bacterium is clever + Zun of annulus of benzene aether armour; Much bacterium is clever + Mi bacterium ester; Frost of armour of essence of ＋ of nitrile of cough up bacterium is clever; Clever seed dressing of Jia Shuang of essence of ＋ of salt of copper of Mi bright amine, can prevent disease of cauline radical corrupt effectively to happen.
4, drug handles soil. Union turns over soil preparation to if much bacterium spirit, Dai Sen is manganese zinc, methylic,use antiseptic of low poisonous wide music n cultivated land the drug such as the ferry that hold cloth in the palm, potassium permanganate handles soil. Ploughing break up or rotary tillage after the first border district, choose water of add of two kinds of drug face of even sparge turn up soil, next again rotary tillage or rake scoop up the 2nd border district.
5, agricultural measure is a center with breeding Zhuang Miao. Be like comfortable period right amount sow, add the potash fertilizer that apply phosphor and zincic fertilizer, pest of underground of seasonable prevention and cure, timely water Bu Shang. The area with poor water quality irrigation channel water irrigates or should hit to irrigate of deep water well irrigation.
6, rise in wheaten turn green gush medicine control. With evil mildew spirit, Jia Shuang the add water such as ester of bacterium of Qing Dynasty of bacterium of Zun of annulus of armour of aether of evil mildew spirit or alcohol of Zun of the fifth of the ten Heavenly Stem, benzene, cough up, Mi arranges sparge of ridge in a field,
7, clear ill incomplete body. When summer harvest or autumn harvest, outside giving wheaten straw or corn straw Qing Dynasty ill field, do not return cropland directly again.
Wheaten bine base once disease happens, very big to wheaten crop influence, prevent and cure later hard more, because this is during day-to-day wheaten and field management, should achieve early discovery, early prophylaxis and treatment, choose pair of drug, reduce a harm, ensure crop.
Origin: Agrotechnical wait
