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Paclobutrazol is a well-developed triazole plant growth regulator and an inhibitor of endogenous gibberellin synthesis. It can also increase the activity of rice indole oxidase and reduce the level of endogenous IAA in rice seedlings. Significantly weaken the growth advantage of rice tops and promote the growth of lateral buds (bifurcation). The appearance of the seedlings is short and strong, and the leaves are dark green. The root system is developed. Anatomical studies have shown that paclobutrazol can make the cells of rice seedling roots, leaf sheaths and leaves smaller, and the number of cell layers in each organ increases. Tracer analysis showed that paclobutrazol could be absorbed from rice seeds, leaves and roots. Most of the paclobutrazol absorbed by the leaves is retained in the absorbent portion and rarely transported outward. The low concentration of paclobutrazol increased the photosynthetic efficiency of rice seedling leaves; the high concentration inhibited the photosynthetic efficiency, increased the root respiration intensity, decreased the aerial part of the respiration intensity, increased the leaf stomatal resistance, and reduced the leaf transpiration.
The agricultural application value of paclobutrazol is its control effect on crop growth. It has the effects of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant tillering, promoting flower bud differentiation, increasing plant stress resistance and increasing yield. This product is suitable for rice, wheat, peanuts, fruit trees, tobacco, rapeseed, soybeans, flowers, lawns, etc. (plant), the effect is remarkable.
Usage usage editing
Applicable crops Application range Application period Usage and usage
Three wheat, soaking seeds should be shallow sowing. Soaking for 10-12 hours before sowing. Add 1.5 g of medicine per kg for 3-4 hours.
Mai Miao one leaf and one heart period, wheat rose to the front of the dialing section, one leaf before the festival, 20 grams of medicine, 15 kg of water, 40 grams of medicine, 50 kg of water
Rape cultivation short-legged seedlings High seedling bed water level, early sowing, high density seedbed 3-4 leaf stage 40 grams of medicine 50 kg spray
Peanut, cotton, full bloom, 50 grams of medicine, 50 kg of water
Rice cultivation and breeding to prevent lodging. The age is about 35 days. In the single season, the late rice field is transplanted 25 days before the transplanting. The 175-200 grams of water is sprayed with 100 kilograms of water.
High-yield fields, local high-rise and high-rise lodgings, 30-40 days before heading, 150-175 grams of water, 100 kg of water
Under the autumn branch of apple, 15-20 grams of medicine fence per plant
The new shoot grows to 5-10 cm. It is sprayed once every 10 days for 500-700 times.
Pear new shoots grow to 5-10 cm. Spray 500-700 times of water for 10 days, for a total of three times.
Peach, hawthorn, autumn or spring branches, 10-15 grams per plant
Soybean, potato flowering period, 60 grams of acre, 50 kg of water
Citrus, summer shoot, 150 times, water, foliar, fence
Cherry 4-6 grams per soil, spray 150-300 times water
Mango In early May, each plant 15-20 drugs with water 15-20 kg, open the ring ditch
Tobacco 5-7 leaf stage Acreage 60 grams of water 50 kg spray [1]
Lychee, mid-November, 750 times water spray
Dosage form: 95% paclobutrazol, 10% paclobutrazol wettable powder, 15% paclobutrazol wettable powder, 25% paclobutrazol suspending agent
Edit by method
1. Rice In the long-aged paddy field, in the heart of the seedling 1 leaf 1 heart, with 10% wettable powder 300g/667m2, spray 50L water, can control the height of the seedlings, cultivate the strong tiller and strong roots. After the transplanting, in the panicle differentiation stage, 10% wettable powder 180g/667m2, spray 50-60L of water, can improve the plant type, make it dwarf, reduce lodging.
2. Fruit trees Apple, pear, peach, and cherry trees have significant effects on soil treatment, tree trunking, and foliar spray. The best treatment with soil. The soil treatment uses 10% wettable powder 10~15g per cubic meter of canopy, in the form of a similar annular fertilization ditch, 30cm wide and 20cm deep. The principle is to expose the roots and cover the soil. Water is applied before and after application to maintain soil moisture. Dry with 150% to 300 times of 15% wettable powder. Using 15% wettable powder 75-150 times liquid foliar spray for saplings, can make the crown dwarf, compact, early flowering results; for adult trees, can inhibit the growth of new shoots, increase yield and improve quality.
3. Soybean, rapeseed, cotton, flowers, wheat Soybean is sprayed with 10% wettable powder 500 times in the whole flowering stage, and has dwarf soybean plant height, which promotes branching and yield increase. Spraying 10% wettable powder 500-1000 times liquid in rapeseed seedling 2 leaves 1 heart to 3 leaves 1 heart, which prevents high seedlings and antifreeze effect. Application on cotton seedlings can prevent the occurrence of high seedlings and frost damage. Applied on flowers, the plant type can be straightened. Beautiful posture. Applied on wheat, it can increase tillering and lodging resistance.
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