Vegetables are more seasoned
   It is important to properly manage residual weeds and plant material after harvesting. Many vegetable farmers tend to leave these materials in the field or mix them into the soil, which can lead to serious issues. These leftover plants and weeds often carry pathogens, pests, and eggs that may cause diseases like Pythium root rot or tomato wilt, as well as infestations of whiteflies. Additionally, decomposing plant matter can release harmful substances that negatively affect future crops. It's recommended to remove all plant residues from the field, including damaged fruits, leaves, and weeds, and dispose of them properly—either by burning, burying, or taking them away from the greenhouse to prevent contamination.
Properly composted manure is essential for healthy crop growth. However, many farmers apply fresh manure too soon, allowing toxic compounds like ammonia to harm young plants. In addition, if the soil lacks beneficial bacteria, harmful microbes from the manure can multiply and damage seedlings. To avoid this, it's best to fully decompose the manure before applying it. If planting is approaching, adding microbial agents can help speed up decomposition. For longer periods, using high-temperature methods or pre-treating the manure can reduce pathogens and ensure it's safe for use.
Soil aeration is crucial for optimal plant development. Unfortunately, many farmers rely on rotary tillers that only work the top few centimeters of soil, limiting root growth and reducing water infiltration. This shallow tilling can lead to compacted soil, making it harder for roots to spread. Manual tools like plows or shovels, or even small excavators, are more effective for deeper tilling. It’s recommended to till the soil deeply every 2–3 years and ensure ridges are also turned to fully loosen the ground, promoting strong and healthy plant growth.
Pest control should be a priority during ground preparation. However, many farmers neglect to disinfect their equipment, such as rotary tillers, which can transfer pests like root-knot nematodes from one greenhouse to another. It's important to clean and disinfect all tools before use. In areas heavily affected by nematodes, it's best to use separate tools or manually till the soil deeply to prevent the spread of these harmful pests.
After tilling, some farmers leave the vents of the greenhouse open, thinking it will keep pests out. However, this is not always effective. During active pest seasons, insects can easily enter and lay eggs inside, causing long-term damage to crops. To prevent this, it’s advisable to install fine mesh insect nets at all vents and regularly clear surrounding weeds, which can serve as breeding grounds for pests.
Source: Gansu Science and Technology News
The porous infrared ceramic block is provided with a porous infrared ceramic block, characterized in that: an annular convex surface is arranged on the upper end surface of the ceramic block, and the advantage of the utility model is that the annular convex surface plays The function of the ribs improves the mechanical strength of the infrared ceramic sheet, which can reduce the bursting phenomenon; increases the surface area of the infrared ceramic sheet and increases the heat load; the combustion flame is not at the same horizontal line, and the wind resistance at low fire is improved. The infrared release angle can be released upward from the past plane, and becomes a dual release of focusing and dispersion, which improves the thermal efficiency of the burner, is not easy to temper, and is applicable to a wider range of gas sources.
Zirconia Ceramic Block,Ceramic Zirconia Block,Zirconia Wear Form Block,Ceramic Mould
Dongguan Haikun New Material Co., Ltd. , https://www.hkceram.com