Without cutting due to the low temperature and nutrient accumulation in the summer, the consumption is large, affecting the growth of the plants, and the tissue fibers of the leaves increase, the texture is rough, and the growth is weakened to show the phenomenon of resting and resting. At this time, it is generally no longer harvested. Otherwise it will affect the growth and yield of autumn, but also affect the life of leeks. Plant culture should be strengthened to lay a good foundation for the autumn production.
Weeding in summer is hot and rainy, beneficial to the growth of weeds, affecting the growth of leeks, removing weeds in time after each site preparation, and spraying 25% herbicide ether on the ground.
Picking flower buds due to flowering and knotting real-time leeks, a large number of nutrients, affecting plant growth, tillering and nutrient accumulation, thus affecting the output in the coming year. Therefore, in addition to the cultivation of the fields, timely removal should be carried out in order to facilitate the cultivation of the plants when the flowers are young.
Strengthen the management of fertilizer and water According to the seedling condition, lyrics and weather conditions, pour water once every 7-10 days, and follow the water and apply 3-7 times of human excrement and urea fertilizer.
Disease prevention and control of insect pests in the summer heat conditions, the most vulnerable to blight, especially after heavy rain, and then exposed to the sun exposure, close to the ground, the occurrence of scalding lesions, severe plant death. Therefore, it is necessary to pay attention to drainage and flood prevention in the summer. After heavy rainfall, shallow irrigation with well water reduces ground temperature and removes yellow leaves on the ground, so that the ventilation between the rows is good and harm is reduced. Can also use 50% carbendazim 500 times Irrigation control. In summer, the occurrence of earthworms is also very serious. Generally, 90% of trichlorfon plus 100-200 grams of alkali surface or 40% of phoxim 800 times is used to control earthworms in the early summer. At the end of the summer, 3000 times of liquid methionine is sprayed on the leaves, dung heaps, fen pits, and land to eliminate pests.
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