博文

目前显示的是 七月, 2018的博文

Why bacillus subtilis is the most popular biofertilizer?

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Bacillus subtilis grows fast.It can produce heat-resistant and stress-resistant spores. It can be made into various dosage forms. It can be mixed with chemical pesticides without inactivation, and the mass production process is simple, the cost is low, and the application is convenient and storage.


The effects of Bacillus subtilis on plants are mainly reflected in the following aspects:
1.Nutrition and space competitionThe competitive effects of Bacillus subtilis mainly include nutritional competition and spatial locus competition. It can rapidly and massively multiply and colonize in the rhizosphere, body surface or in the soil and in the soil, effectively reject, prevent and interfere with the colonization and infection of plant pathogenic microorganisms on plants, thereby achieving antibacterial and disease-preventing effects.

2.Produce antibacterial substancesBacillus subtilis can produce a variety of substances with antibacterial and bacteriostatic activities during the growth proce…

Welcome to Dora Agri at 2018 Agroexpo Bogota

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In 2018,many countries begin to attach importance to environmental protection,then many traditional pesticides are forbidden to sale.
From 2017,Dora Agri foucs on biocontrol solution to reduce the use of traditional pesticides and fungicides.Now great progress has been made in research on biocontrol solution.
If you have interest,Please kindly check the our biocontrol and biofertilizer series.Hope our information will be useful for you,and we are willing to hearing from your reviews.

What’s difference between early blight and late blight?

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Early blight and late blight are important diseases on solanaceous vegetables.Although the names of the two diseases are only one word difference,some vegetable farmers do not know exactly about early blight and late blight.Some people even think that the two diseases are only happening time different. There are many problems in the prevention and treatment of diseases.Especially in the selection and use of chemical fungicide,blind drug use not only does not play a role in disease prevention,but delays the best prevention and control time,leading to serious diseases.
What’s difference between early blight and late blight?
Early blight mainly affects the stems,leaves,and fruits of vegetables,and is most susceptible to disease at the branches of leaves and stems.At the seedling stage,the base of the stem of the seedlings is dark brown lesions,slightly sunken,and has a ring pattern.The onset of adulthood generally develops from the lower leaves to the upper part.The leaves are infected,the …

What’s symptom of grape magnesium deficiency?

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What’s symptom of grape magnesium deficiency?The leaves are chlorotic.Because magnesium can be transferred to young parts in plants,the top leaves are asymptomatic. Initially starting from the base blade,the leaf edge turns yellow first,the leaves are water-stained,and the yellow veins are severe.
General reasons 1.The soil is mostly acidic,the pH value is too low,the magnesium leaching is serious,the release of magnesium is obviously inhibited,and the average content of exchangeable magnesium in the soil is lower than the critical level,and the magnesium deficiency is serious. 2.Grapes are potassium-producing crops,but excessive potassium inhibits the absorption of magnesium by the roots of the grapes and transports magnesium ions to the above-ground parts,causing magnesium deficiency. 3.Magnesium and calcium,ammonium ions also have antagonistic effects,therefore,the soil calcium content is too high or the application of calcium and nitrogen fertilizers will reduce the absorption of m…

6 kinds most damaging dieases in watermelon growing

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There are some disease during watermelon plantation,especially in the old melon area where continuous cropping.Recently,many farmers have consulted about the problems related to watermelon disease.Here we sort out watermelon diseases identification and hope it is useful to everyone.

Occurrence period: mainly harm unseeded and freshly emerged seedlings.
Identification points: stem base rot, seedlings tripped, white hyphae when high humidity.




Occurance period: whole growth period
Identification point:1.leaf, brown spotted,slightly depressed,yellow external halo,unaffected by veins, perforated when dry. 2.Fruit,The lesion starts dark green and becomes dark brown,and cracks can occur.

Occurence period: late growth period
Identification point: lesion becomes from light green to yellow, and then brown, restricted by veins, mildew when wet.

Occurence period:whole growth period
Identification point: 1.Leaf, from the edge of the leaf, it starts as hot water boil, and the handle is fragile at the lat…