Paclobutrazol can not be used on potatoes

Paclobutrazol is generally not used in potato production. In addition to controlling the growth of aboveground parts of potatoes, paclobutrazol can also inhibit the formation and development of underground stolons, resulting in early potato setting and premature senescence of aerial parts.

Secondly, improper application of paclobutrazol concentration will cause leaf aging, stop the development of growth points, and premature plant senescence, resulting in the reduction of photosynthetic area in the aboveground part and affecting the yield.

Third, as the "agricultural doctor" said, paclobutrazol has a long half-life, and it is easy to affect the crop after application, affecting the seed germination and seedling growth of crops.

Potato control wang does not advocate the use of paclobutrazol, because the use of small amount does not work or the effect is not ideal, when the dosage is increased, the effect is improved, but due to the large amount of residue in the soil, the impact on the crop is greater. It is recommended to use enazole alcohol growth control agent + amino acid foliar fertilizer to double the constant amount for foliar spraying, and the best effect is to do so.

*Paclobutrazol can be used on potatoes**. Paclobutrazol is a plant growth regulator that can control the growth of potato stems and leaves and improve potato yield. The use of paclobutrazol on potatoes can dwarf plants, inhibit weeds, reduce the proportion of small potatoes, increase the proportion of large and medium potatoes, and increase the yield of potatoes.

The potato yield increase effect of paclobutrazol is obvious, and the yield can be increased by 25-30%.

With uniconazole solution, spraying on the foliar surface of the potato flowering stage (that is, when the potato pieces are expanded) can shorten the internodes of the stems and vines, and the leaf color is dark green, and the growth of the aboveground part of the fan is delayed, and the underground potato pieces are accelerated, and the number of potato pieces is increased. When used on sweet potatoes, peanuts, lawns and other plants, it is recommended to use 40 grams per mu and 30 kg of water (about two fingers).

Summary. Mancozeb is a protective fungicide, mainly for prevention, and the permeability is not strong, and uniconazole is a growth regulator that can be mixed.

With uniconazole solution, spraying on the foliar surface of the potato flowering period (that is, when the potato pieces are expanded) can shorten the stem and vine internodes, the leaf color is dark green, the growth of the aboveground part is delayed, the underground potato pieces are accelerated, and the number of potato pieces is increased When the sweet potato, peanut, lawn and other plants are used quickly, it is recommended to use 40 grams per mu of embassy hall and 30 kg of water to disperse (about two pots).

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Mancozeb is a protective fungicide, mainly for prevention, and the permeability is not strong, and uniconazole is a growth regulator that can be mixed.

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Summary. After spraying uniconazole growth control agent, it is necessary to strengthen fertilizer and water management to avoid yield reduction caused by insufficient fertilizer and water.

Hello, thank you very much for your trust, the use of uniconazole on potatoes for wang control, can be sprayed in the early flowering stage of Tanna sedan potato, sprayed with 15 30 kg of 1000 times liquid uniconazole solution per mu. It is beneficial to promote the expansion of potato pieces, increase the number of several pieces, and shorten the internode sensitivity of potato seedlings in the aboveground part without rising wildly, so as to improve the yield of potatoes.

Can you tell us more about that?

After spraying uniconazole growth control agent, it is necessary to strengthen fertilizer and water management to avoid yield reduction caused by insufficient fertilizer and water.

When the sweet potato seedlings are close to sealing, spray foliar sweet potato planting precautions with 15% paclobutrazol 20 grams with 15 kg of water

Seedbed seedling: germination and seedling cultivation is an important part of the whole off-season cultivation, and the seedling time is appropriately early in mid-February, and the seed potatoes are moved into the seedbed of the protected area for seedling. The seedbed is protected by a double-layer film, the seed potatoes are neatly arranged, covered with a layer of fine soil and then covered with a layer of mulch, and then arched with a layer of film to increase the ground temperature of the seedbed.

Punch holes in the tiled mulch film in time to introduce seedlings, so as not to burn the young seedlings in sunny days and high temperatures. The seedbed is sprayed with water every 7 days in the first month, sprayed with water and fertilizer twice a week after l months, and a batch is cut every 7 10 days (when the plant is up to 15 cm), and water and fertilizer are sprayed twice a week since the first shearing, and the concentration is appropriately increased to ensure the nutrient supply of regenerated seedlings.

Apply sufficient base fertilizer: select sandy loam land, and apply 2-3 tons of farm fertilizer, 15 kg of urea, and 20 kg of phosphate fertilizer in early spring.

Mulching: Mulching can play a role in warming and moisture preservation, and can improve the physical and chemical properties of the soil, can increase the temperature difference between day and night of the soil, planting sweet potatoes can generally be planted in two rows of high ridge mulching, the whole distance is 60 cm, the coverage is 50 cm, the small row is 40 cm, the plant is staggered, the plant spacing is 33 cm, and the mu is about 4000 plants, the ridge height is moderate, if the planting period is too dry, the flat cover can be used to plant flat to facilitate the growth of seedlings.

In the field of vigorous growth, paclobutrazol was sprayed to inhibit the vigorous growth of stems and leaves and promote the expansion of potato pieces.