【1】Promote the germination of seed potatoes
Gibberellic acid potato cut into pieces and soaked in 0.5-2mg/L gibberellic acid solution for 10-15min, or soaked whole potato in 5-15mg/l gibberellic acid solution for 30min, can relieve the dormant period of potato tubers and germinate early. Lateral buds are induced, the growth of young buds is accelerated, stolons occur earlier, and the expansion period of tubers is prolonged, which can increase yield by 15%-30%. (Note: varieties with a short body eye period use a lower concentration, while varieties with a long dormant period use a higher concentration.)
【2】Increase production
Diethyl aminoethyl hexanoa (DA-6) In the early flowering stage, foliar spraying of 60-100mg/L DA-6 liquid can significantly increase the net photosynthetic rate of leaves, increase the activity of SOD in leaves, reduce the content of MDA in plants, and make potato have a higher quality of life. Strong ability to scavenge active oxygen free radicals. At the same time, DA-6 can significantly increase the starch content in potato tubers, and to a certain extent, it can increase the content of vitamin C and protein, reduce the content of reducing sugar, and improve the quality of potato tubers.
Ascorbic Acid Spraying 60 mg/L ascorbic acid solution at the potato seedling stage, tuber formation stage and tuber expansion stage can significantly reduce the occurrence of potato late blight and increase the tuber yield per unit area.
Choline chloride Foliar spraying at 300-400mg/L at the beginning of flowering, spraying once at 10-15d intervals, 2-3 times continuously, can increase the weight of each tuber and the average weight of tubers, and has a good effect of increasing yield.
Uniconazole Under the condition of conventional planting density, spraying 40mg/L unconnoconazole on the tuber expansion stage can control the leggy length of the stem and promote the increase of yield.
Paclobutrazol When the plant height is 25-30cm, spraying the whole plant with 250-300mg/L paclobutrazol liquid can inhibit the leggy growth of stems and vines, promote the transfer of nutrients to the rhizome, promote the expansion of the rhizome and increase the yield.
Mepiquat chloride(PIX) From the budding stage to the early flowering stage (the tuber rapid growth stage), spraying the leaves with 200m/l liquid medicine can increase the yield of “Kexin No. 13” by 10.77%. Spray once in areas with less rain, and spray once at intervals of 15-20 d in areas with good fertilizer and water, which can control the vigorous growth of plants, promote reproductive growth and increase yield.
Chlormequat(CCC) From budding to flowering stage (rapid growth stage of tubers), spray with 1000-2000mg/L liquid medicine per mu. It is advisable that the leaves are all wet, which can delay the growth of stems and leaves, shorten the internodes, make the plants compact, and increase the chlorophyll content. , Change the distribution ratio of assimilation in the plant, the tuber formation time is 7d earlier, the growth rate is accelerated, the proportion of large tubers increases, the large tuber over 50g increases by 7%-10%, and the unit yield increases by 30%-50%. The appearance is as follows: The internodes are shortened, the plants are compact, the leaves are dark green, and the leaves become thicker.
【3】Inhibit the germination of seed potatoes
Chlorpropham ① Seed soaking treatment, select potato tubers with good appearance, no mechanical damage, and no disease. After placing them for 15 days, soak them in 1500mg/L chloraniline for 30 minutes, remove them from light, dry them, and store. It has a strong bud-inhibiting effect and can be effective. Inhibit the germination and growth of potato sprouts and reduce the consumption of nutrients.②Fumigation treatment, 14 days after the potato is harvested, in order to inhibit potato germination during storage, 50% chloraniline hot spray 60-80g/L can be used to atomize the agent and use the aerosol circulation method to control airtight warehouses or cellars and other airtight conditions fumigated potatoes. Keep the warehouse closed for more than 48h during the spraying period until the smoke completely descends. The safety interval of 50% chloraniline hot spray is 60d. ③For dusting, use 500-600g of 2.5% chloraniline powder per ton of potatoes (active ingredient 12.5-15g), and spread the agent layer by layer and evenly on the On the potatoes that are healthy and dry on the surface, use airtight materials such as plastic sheets to seal them as much as possible. After sealing and storing for 3-4 days, remove the covering materials such as plastic sheets and store them normally.
1-naphthaleneaceticacid methyl ester Mixing methyl naphthalene acetate with attapulgite or other carriers to make powder, and spraying or spreading with 20-30g of 1-naphthaleneaceticacid methyl ester per ton of potatoes before storage can cause irreversible changes in the growth point of potato tubers, thereby prolonging the growth of potato tubers. its storage period.
Abscisic acid (S-aba) After selecting the potato tubers with good appearance, no mechanical damage and no disease, put them for 15 days, soak them in 4 mg/L abscisic acid for 30 minutes, take them out and dry them in the dark, and store them, which can prolong the dormancy of potatoes, the tubers germinate neatly, and consume more nutrients in the later stage.
【4】Tissue culture
BAwith Sodium naphthalene-1-acetate(NAA/NA-NAA) In the MS medium without any chemical treatment, the potato test-tube seedlings took root slowly and had poor growth; when 1 mg/L 6-BA and 0.5 mg/L naphthalene acetic acid (sodium) were added, the virus-free seedlings took root faster and planted stronger ones. Plants grow well and are relatively robust.
1h-indole-3-butanoic acid (IAA) After adding 0.2 mg/L indole butyric acid to MS medium, the growth rate of test-tube seedlings was accelerated, the reproduction cycle was shortened by 5 days compared with the control, and the reproduction efficiency was improved.
Paclobutrazol Adding 0.2mg/L paclobutrazol to MS medium can inhibit the leggy growth of potato test-tube seedlings, increase stem diameter, and shorten internode length.
CCC Potato test-tube seedlings can be preserved for more than one year, and the sub-generation of test-tube seedlings will not be affected by the preservation treatment.
【5】Speed up the dry
Diquat 10-15d before harvest, use 40-50g of diquat per acre to be mixed with water and spray on the leaves to dry up the leaves, which is beneficial to manual or mechanical harvesting.
We are based in Henan, China, start from 2021,sell to South America(31.00%),North America(25.00%),Western Europe(15.00%),Central America(8.00%),Oceania(5.00%),Eastern Asia(5.00%),Eastern Europe(4.00%),Southeast Asia(3.00%),South Asia(2.00%),Africa(00.00%),Mid East(00.00%). There are total about 5-10 people in our office.
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Gibberellin GA3,Cytokinin,Rooting Hormone,Fruit Coloring,Plant Growth Inhibitor
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