Trunk coating preparation for control of fruit tree rot disease and preparation method thereof
A technology for fruit tree rot disease and coating dry, which is applied in the fields of botanical equipment and methods, pest control, biocide, etc., can solve the problems of poor fruit tree rot disease prevention effect, damage to fruit trees, high prevalence of fruit tree rot disease, and achieves Conducive to prevention and treatment, increased production, and the effect of rapid repair
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preparation example Construction
[0041] The preparation method of the seaweed extract comprises the following steps,
[0042] Step 1, prepare solution A
[0043] Wash the dried seaweed to remove impurities, chop it into 2-3 cm and put it into a reaction kettle, add water to soak the dried seaweed, take the soaked supernatant and filter it with ion exchange resin to remove salt and heavy metals, and obtain solution A;
[0044] Step 2, prepare solution B
[0045]After putting the solution A obtained in step 1 back into the reaction kettle, add potassium oxalate, the ratio of potassium oxalate to dried seaweed in step 1 is 1:250, and after soaking and softening, an emerald green viscous liquid with a clear fragrance is obtained. The thick liquid is centrifuged to separate seaweed residue and solution B;
[0046] Step 3, prepare solution C
[0047] The seaweed residue obtained in step 2 is placed in an empty reaction kettle, and then water and potassium hydroxide are added in sequence, and then the mixed solut...
Embodiment 1
[0067] A dry-applied preparation for preventing and treating fruit tree rot mainly consists of 48kg of seaweed extract, 18kg of humic acid, 3kg of potassium hydroxide, 9kg of potassium dihydrogen phosphate, 4kg of potassium sulfate, 9kg of potassium nitrate and 9kg of urea.
[0068] The preparation method of the seaweed extract comprises the following steps,
[0069] Step 1, prepare solution A
[0070] Clean the dried seaweed from impurities, chop it into 2-3cm and put it into the reaction kettle, add water to soak the dried seaweed, the weight ratio of the dry seaweed to water is 1:11, soak the dried seaweed at a temperature of 22°C for 3.2 h, taking the soaked supernatant and filtering it with an ion exchange resin to remove salt and heavy metals to obtain solution A;
[0071] Step 2, prepare solution B
[0072] After putting the solution A obtained in step 1 back into the reactor, add potassium oxalate, the ratio of potassium oxalate to dried seaweed in step 1 is 1:250, t...
Embodiment 2
[0087] A dry-applied preparation for preventing and treating fruit tree rot mainly consists of 50 kg of seaweed extract, 20 kg of humic acid, 2.5 kg of potassium hydroxide, 7.5 kg of potassium dihydrogen phosphate, 4 kg of potassium sulfate, 6 kg of potassium nitrate and 10 kg of urea.
[0088] The preparation method of the seaweed extract comprises the following steps,
[0089] Step 1, prepare solution A
[0090] Clean the dried seaweed from impurities, chop it into 2-3cm and put it into a reaction kettle, add water to soak the dried seaweed, the weight ratio of the dry seaweed to water is 1:10, soak the dried seaweed at 24°C for 4 hours , taking the soaked supernatant and filtering it with an ion exchange resin to remove salt and heavy metals to obtain solution A;
[0091] Step 2, prepare solution B
[0092] After putting the solution A obtained in step 1 into the reaction kettle again, add potassium oxalate, the ratio of potassium oxalate to dried seaweed in step 1 is 1:2...
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