Application of chlormequat in grain and oil crops
Time:2023-01-31 Follow:446
1. Wheat
In wheat production, wheat lodging is a frequent occurrence, especially in fertile and watery plots, where wheat grows vigorously and is prone to lodging under external forces such as wind and rain before and after heading. The light lodging of wheat will affect the yield, reduce the grain quality, and even cause the loss of harvest. To understand? For the contradiction between high yield and lodging prevention of wheat, using chlormequat is an effective technical measure. The experiment and production practice proved that the wheat treated with chlormequat can promote the plant to be short, the internode to be short, the cell layer of the stem wall tissue to be increased, the stem wall to be thickened, the lodging resistance of the wheat to be enhanced, and the yield increase effect is significant.
Application method:
(1) Application mode: spray.
(2) Use period: turning green and jointing.
(3) Operation steps: The use of chlormequat in wheat varies with varieties. Winter wheat before turning green and jointing; For spring wheat, in the peak jointing stage, the concentration of chlormequat for spray should be 40-50 mg/L of 50% water, and 50 kg/mu is appropriate.
2. Corn
The application of chlormequat in maize can inhibit plant elongation, shorten internode and reduce ear height, which shows the effect of dwarfing and lodging resistance. At the same time, chlormequat also inhibited the elongation of leaves and increased the width of leaves. The green leaf area of a single plant did not decrease but increased. The production practice showed that the bald head of maize treated with chlormequat decreased and the number of grains increased, thus significantly increasing the yield of maize.
Application method:
(1) Application mode: spray the whole plant.
(2) Usage period: leaf age.
(3) Operation steps: The maize treated with chlormequat should be selected at the 10 leaf stage of maize, and the chlormequat solution of 40-50 mg/L of 50% water agent should be taken for spray.
3. Sorghum
Spraying chlormequat on sorghum can make the plant dwarf, the stem thick, the leaves dark green, the leaves thickened, improve the ability of lodging resistance, spike length, more grains, and sorghum yield significantly.
Application method:
(1) Application method: spray the whole plant.
(2) Use period: jointing period.
(3) Operation steps: the treatment of sorghum with chlormequat is selected at the jointing stage, and the whole plant is sprayed with chlormequat solution with a concentration of 50% water agent of 20-30 mg/l.
4. Oats
The effect of chlormequat on oats can promote root development, dwarf, prevent lodging and increase yield.
Application method:
(1) Application method: spray the leaves.
(2) Use period: at the end of tillering.
(3) Operation steps: Oats are treated with chlormequat at the end of their tillers, and the concentration of 50 mg/L is appropriate. The spraying method is to use a spray on cloudy days.
5. Sweet potato
The chlormequat can make the stem and vine of sweet potato strong, the leaves enlarged and thickened, and the photosynthesis intensity increased, so as to promote the growth, development and expansion of root tuber, thus greatly improving the yield of sweet potato.
Application method:
(1) Application method: spray the leaves.
(2) Use period: growth period.
(3) Operation steps: when the sweet potato is treated with chlormequat, the first foliar spraying of chlormequat with a concentration of 250 mg/L should be carried out 30 days after the sweet potato is planted; After a month, the same concentration of chlormequat was sprayed for the second time.
Application of chlormequat in oil crops
1. Peanut
When used in peanuts, chlormequat can make peanut plants dwarf, prevent falling, have thick and green leaves, have many pods, and yield significantly? Plus.
Application method:
(1) Application method: spray.
(2) Usage period: after broadcasting.
(3) Operation steps: spraying chlormequat on peanuts is carried out 50 days after sowing. The concentration of chlormequat is 50 mg/L, and the leaves are sprayed with a spray.
2. Rape
The rape treated with chlormequat can promote the leaves to be green and the photosynthesis to be enhanced, thus making the rape pods more and more seeds, and increasing the yield of rape.
Application method:
(1) Application method: immersion.
(2) Use period: before sowing.
(3) Operation steps: rapeseed is soaked in chlormequat solution with a concentration of 400 mg/L for 6 hours before sowing?, Dry and sow.