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How to correctly use napropamide in tobacco fields?
How should napropamide be used in tobacco fields? Please give guidance. Tobacco seeds are small, and the seedlings grow slowly, so they are often harmed by weeds. The main weeds include: foxtail, Chinese sprangletop, barnyardgrass, goosegrass, shortawn foxtail, cocklebur, flatsedge, cleavers, chickweed, plantain, dandelion, etc. Weed control in tobacco fields can...
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How should plant growth regulators be used correctly on vegetables?
How are plant growth regulators used on vegetables? Please provide guidance. When applying plant growth regulators to vegetables, you can refer to the following methods: 1. Determine the appropriate concentration according to the purpose of use. When using plant growth regulators, different concentrations should be adopted according to the purpose of use, the different vegetable species, and the different stages....
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How should copper-based fungicides be used correctly?
How are copper-based fungicides used? Please explain the methods. The role of copper-based fungicides: copper-based fungicides can control both fungal diseases and bacterial diseases; they have both a protective and preventive effect, and at the same time a therapeutic and eradicative effect; they can heal wounds, sterilize and reduce inflammation, and can also treat certain skin diseases; at the same time...
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How do you use plant growth regulators correctly?
How do you use plant growth regulators correctly? To use plant growth regulators, you can refer to the following methods: 1. The concentration for preparation and use must be accurate: the concentrations of plant growth regulators used are relatively low and must be very precise. If the concentration is too high, it will slow plant growth, cause deformities, flower drop, and stop the growth of leaves and roots, and may even cause...
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How to correctly use herbicides in forest nurseries?
Can herbicides be used when growing Schisandra chinensis? Will they cause phytotoxicity? 1. Soil residual phytotoxicity 1. Symptoms. In the middle of the growth period, the leaves wilt, and in the morning and evening the leaves recover and become upright, the plant becomes stunted and stops growing, similar to drought, and the root system develops slowly. 2. Causes. The phytotoxicity of triazine, sulfonylurea, imidazolinone, etc....
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How to Correctly Use Herbicides When Planting Autumn Radishes
How should herbicides be used for planting autumn radishes? What are the application methods? When planting radishes in autumn, the amount of weeds in the field is relatively large, so in production, herbicides can be selected according to actual conditions for chemical weed control. For pre-sowing soil treatment, you can choose 48% trifluralin emulsifiable concentrate 100-150 ml (dosage per mu, same below...
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How to correctly use herbicides when growing Chinese chives?
How are herbicides used when growing Chinese chives? Please refer to the following herbicide techniques for your reference: 1. Pre-emergence: 48% dinitramine, 3 to 3.75 liters per hectare, applied to seedling beds after sowing and before emergence. 50% prometryn WP at 1.5 grams per hectare, applied to Chinese chive seedling beds after sowing and before emergence; 50% prometryn WP at 1...
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How to correctly use herbicides on corn in summer?
How should herbicides be used on corn in summer? Please provide guidance. The growth period of summer corn is from June to September, which coincides with the high-temperature and rainy season, favoring the occurrence and damage of field weeds. Once the proper control period is missed, it is very easy for weeds to run wild, seriously affecting corn growth. Chemical weeding is an important measure for controlling weed damage in corn fields and increasing corn yield...
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How to correctly apply herbicides during the maize seedling stage
How should herbicides be applied to maize seedlings? Please give guidance. For post-emergence chemical weed control in maize, herbicides must be strictly selected and mixed and applied according to the instructions. In plots with severe weeds, the dosage may be increased by 15-20% above the rate stated in the instructions. Method: for foliage treatment, it must be done before maize reaches the 6-leaf stage and before weeds reach the 2...
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How are plant growth regulators applied correctly?
How are plant growth regulators applied? Please explain that the spraying method is the most commonly used method. According to growth needs, foliar spraying is mostly used, and there is also localized spraying of flowers and fruits. When spraying, strive for evenness, with fine droplets, and spray until wet. In order to allow plants, especially those with hairs or wax on the leaves, to fully absorb...
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