How to resolve the stagnant growth of the main stem of cucumber
In the process of cucumber growth, some headless stems and turtle stems are often found, so that the growth of cucumber is inhibited and the yield and quality are affected. Causes of headless stems are caused by the damage of ticks, the damage to black spot disease, and the serious lack of boron in the soil, which causes the growth of root tips and stem tips to stagnate. Caused by the main stem of the turtle's cause, one is cold and cold, the second is poor root development, the third is not reasonable enough for fertilization, nitrogen, phosphate fertilizer is high, watering is not timely enough. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone High Frequency Electrosurgical Generator High frequency Electrosurgical Generator ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.shendasiaomed.com
In this regard, we must promptly adopt comprehensive measures to prevent and remedy pests, rooting and cultivating roots, and coordinating fertilizer and water.
First, prevent and treat pests in a timely manner. For the tea aphid, one can use 15% fluorenone EC 3000 times spray; two can be used 5% fenazinone suspension 3000 times; three can be used 1.8% avermectin EC 4000 times; four available 20%螨 grams of EC 1000 ~ 1500 times, every 7 to 10 days rotation spray. For the prevention and control of scab, one can soak seeds in warm water of 55°C~60°C for 15 minutes, or use 0.3% of 50% carbendazim wettable powder, 50% benomyl wettable powder 1000 times liquid; 70% thiophanate WP 800 to 1000 times, 50% carbendazim WP can be sprayed.
Second, improve the root development environment. One must diligently cultivate, loosen the soil, and maintain good permeability; second, use the “802†solution of the plant growth regulator, 100 ml per acre, watering 600-800 kg, and spray it on the roots. Application of "802" 2000 times liquid, can also be sprayed with 0.01% Tianfengsu or alizarin lactone solution 2 times, to promote the new root new shoots.
Third, a reasonable adjustment of fertilizer and water. Cucumber has a shallow root system and it is impossible to absorb large amounts of fertilizer. At the same time, the ripe fruit of the cucumber must be harvested in sections, and the principle of top dressing should be a small number of times. First, we must control the concentration of nitrogen and phosphorus can not be high; Second, to increase potassium fertilizer, and with the application of boron, zinc and other trace elements; three to the root 0.2% ~ 0.3% of potassium dihydrogen phosphate.