Sulfonylureas: chlorsulfuron + dicamba (chlorsulfuron + paracetamol)
The herbicidal characteristics of chlorsulfuron can be absorbed by the roots, stems and leaves of weeds, and can be used to control many annual broad-leaved weeds and some weeds. Triticeae can be absorbed by the stems and leaves of weeds and can control a variety of broad-leaved weeds. The action mechanisms of chlorsulfuron and tripterygium are different, and the herbicide spectrum is very complementary. The mixed application can expand the herbicide spectrum and improve the herbicidal effect.
Preparation and ratio of chlorsulfuron + 0.6g/ + 2-3g/ mu (active ingredient).
It is suitable for crops @ # @ 245 crops.
The control object can effectively control Euphorbia angustifolia, Calamaria and so on, and has a good effect on a variety of broad-leaved weeds.
From 2 leaves and 1 heart stage to the end of tillering stage, the weeds basically appeared, but most of the weeds were in the seedling stage. 40kg spray was applied to the water according to the above dosage.
It should be noted that the amount of active components of herbicide should not exceed 4g/ mu, nor should it be applied after the late tillering stage of wheat, otherwise the tillering will be inhibited and sterile spikes will appear in the later stage. The pesticide has a long effective period in the soil and should be applied in the rice-wheat rotation area in the south of the Yangtze River basin.
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Xingmai 4
Characteristics: semi-winter, middle maturity, mature stage is one day later than the control stone 4185. The seedlings were semi-creeping, the tillering ability was strong, the panicle rate was low, the panicle height of main stem and tiller was different, and the panicle layer was thick. The plant height is about 80 cm, the plant type is loose and tight, the flag leaf is slightly larger, the leaf color is yellow and green, the wax is much, and the culm is thick. Spike fusiform, spikelet arranged densely, long awn, white shell, white grain, full grain, horny. The average number of panicles per mu is 388000 ears, the number of grains per spike is 36.0g, and the weight of 1000 grains is 42.9g. It is better to turn yellow. Cold resistance identification: cold resistance is moderate. Identification of disease resistance: moderate resistance
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Occurrence and Control of Dwarf Disease in Japonica Rice
First, the harmful symptoms of rice plants are dwarfed, the tillers are increased, the leaves are dark green, and there are transparent yellow-white dotted stripes on the young leaves and leaf sheaths. After booting, yellow-white stripes appeared only on the inverted leaf or other leaf sheaths, and those with late onset often had necked panicles, small panicles, more empty grains and low seed setting rate. Preventive measures once dwarf disease occurs in japonica rice, it is difficult to cure, so comprehensive preventive measures should be taken actively. 1. Selection of disease resistance
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