Vegetable management before heavy rain Do repair and reinforcement of the sheds: heavy rain is often accompanied by strong winds. Check the shed film before storms, repair the damaged parts, check whether the film line is firm, and guard against the gusty wind blowing from the damage of the shed film and uncovering the shed film. . Do a good job of mulching: Covering holes with mulching film should be sealed with fine clay to prevent wind blowing from the planting holes and bursting the film. The mud shall be sealed around the muddy block. Before the film is covered, the membranous surface shall be made into a turtle shape and be slightly flattened and patted so that when the film is covered, it can be kept close to the surface of the bedding to prevent the strong wind from beating the film. Prevention before the rain: The concept of prevention and treatment after the rain before rain, high temperature and high humidity is the condition of some outbreaks of diseases and pests, to be prevented in advance. It can be sprayed once with streptomycin sulfate, thiophanate-methyl, or zinc cyanomanganese (glucose). Vegetable management after heavy rain Timely drainage: Inspect the fields in time and find that the canals are blocked by garbage, etc., or if they have not been cleared in time, they must be promptly cleaned up, dredged, and drained in a timely manner so that the rain will stay dry. The cultivating loose soil: After the heavy rain, the exposed vegetables can easily lead to soil compaction. The soil moisture and airtightness are often liable to cause root failure. The soil should be rotted once in time after being dried. Positive seedlings and make-up seedlings: Heavy rain often causes plant lodging or soiling around the plants, so that the roots must be exposed. Fertilizer to raise seedlings: After the plants resume their growth, they should be promoted with diluted human fecal urine or urea. Treatment of insect pests: timely control of pests with phoxim or trichlorfon, chlorpyrifos, avermectin, etc., after torrential rain, with procymidone (sulfacin), causticin, propamocarb, sulphuric acid Streptomycin, neomycin and other agents control gray mold, scab and other diseases. Do a good job in the management of the sheds: After rainstorms, the greenhouses are often exposed to high humidity, and open and close management of the sheds is required during high-temperature and high-humidity conditions. In principle, the opening and closing temperature of freshly planted greenhouse vegetable should be 28°C, that is, it should be opened in the morning to 28°C to open the shed, and even open the skirt film. In the afternoon, when it drops to 28°C, the skirt film and shed door should be closed. After planting a live tree, the opening and closing temperature is in principle controlled at 25°C. Erythritol For Chewing Gum,Erythritol Reddit,Pyure Erythritol,Swerve Confectioners Sugar Substitute Ningxia Eppen Biotec CO.,LTD , https://www.nxeppen.com
Dredging channels: It is necessary to do a good job of dredging, guttering, guttering, and ditching. Generally, the ditch is more than 80 cm deep, the ditch is more than 50 cm deep, the ditch is more than 30 cm deep, and the ditch is more than 20 cm deep. The drop from high to low allows the rainwater to drain away in time. As in southern China, there is more rain in the spring, and each block should be deep trenches (more than 20 cm deep in the trench), narrow trenches (within 90 centimeters in width), and sorghum to facilitate drainage. In particular, for a field with a large unit area and a length of more than 50 meters, a gutter should be drawn in the middle. A ditch with a depth of 50 cm and a width of 40 cm must be drawn around the field.