Leeks are also a vegetable that can often be seen on our table, containing high vitamins, but also its unique flavor, the taste is also very delicious, many people are also very fond of eating the taste of leeks. Growing leeks also requires skill and pest control, I will share it with you now!
<h1 class="pgc-h-arrow-right" > techniques and methods for growing leeks</h1>
Leeks are generally sown in March-April, its habits like cold, hardiness and heat tolerance, the germination temperature of the seeds must not be lower than 12 degrees Celsius, the growth temperature is between 15-25 degrees Celsius, for light requirements should also pay attention to, medium light can be, light is too weak, photosynthetic product accumulation is less, its tillers are less and weak, easy yield is low, light is too strong, the temperature is too high, it will appear fiber more and the quality is not good.
The relative humidity of the air is 60-70% for moisture and 80-90% of the maximum water holding capacity in the field for soil moisture. The requirements for the soil are not high, the adaptability is extremely strong, the pH value of 5.5-6.5 is the best, a lot of fertility is required, and the fertilizer resistance is also strong. Because of its strong adaptability, there are not many requirements for the soil, it is best to choose an area close to the water source, with good water storage capacity and fertile land. The breeding ability of leeks grown in this way will be very strong, and the color of leeks will look good, so that people will have a greater appetite after seeing it.
In the aspect of planting leeks, we should rarely use sexual reproduction, that is, throw leek seeds out of rows and sow seedlings, most of them should be asexual reproduction, which is what we usually call transplanting, planting the leek seedlings we have prepared according to a certain spacing, generally 3 to 4 seedlings in each hole.
After the leeks are planted for about a week or so, you will see that there will be a few more new leeks around the original 3-4 in each hole, which shows that its reproductive ability is very strong, so we should master the density well, generally the spacing of each bead is about 20 cm, and the interval of each row is 30 cm.
Fertilization of leeks is also important, and incorrect fertilization can make leeks age. The growth of leeks is a continuous process, we apply the base fertilizer to apply enough, in the leek growth of about a week when the use of urea with water, to the leeks for watering, to promote the growth of leeks, after each harvest in our leeks also need to be properly fattened, the use of urea on the line, livestock manure is also OK.
Leeks can harvest 2-4 stubble per year, and the yield of leeks in the first two years of planting will not be very high, usually from the third year after the yield will have a significant rise, until the tenth year after the slow reduction of production, in order to let the leeks have a good growth environment, transplanting after each harvest, in order to ensure a good increase in yield. When harvesting, we should also pay attention to the fact that leeks are the freshest time for leeks at 5-6 o'clock in the morning, and it should be noted that each harvest is slightly higher than the previous stubble harvest, so that leeks can grow normally.
<h1 class= "pgc-h-arrow-right" > common pests and diseases of leeks and their control</h1>
Gray mold, mainly can harm the leaves of leeks, the onset of the disease is from the leaf tip of the leek downward development, the spot is water-stained slowly becomes white-gray brown, the plaque will appear an irregular diamond or conical shape after enlargement, and finally will produce a green and gray mold on the surface of the leaf, when it is serious, it will spread throughout the leek, and the leek will rot or dry up.
Prevention and control methods, strengthen the management politics of the field, rational use of multi-antibacterial fertilizer, the use of gray mold net spraying when the disease occurs, or the use of 70% carbendazim, spraying 2-3 times can be.
Leek blight, which belongs to the fungal disease, can invade the whole leek, so that the tender tip of the leek will appear pale green water stain shape rot, the infected part will appear obvious wrinkles after losing water, so that the whole leek leaf droops to rot, when the humidity of the soil is too large, the infected part will appear white mold, when the rhizome is infected, there will be water stain-like brown rot, making the leek lack of nutrition, resulting in the whole leek working or even dying.
Prevention and control methods, such pathogens can be attached to the disease residue in the soil for winter, when the temperature is suitable will breed sporangia, through the wind and rain weather or when we irrigate to spread, in the leek disease can use 25% of the methyl cream wettable powder 1000 times liquid, or use the alum wettable powder 1200-1600 liquid spray, spray once a week, 2-3 times can be.
Leek strips are blind bugs, such pests suck the juice of leeks for a living, and the persecuted leek wounds will appear white-brown spots, which will later make the whole leek yellow and wither to death.
Control methods, timely removal of weeds in the field, the discovery of such pests, you can use 50% of the cyanocyanide emulsion 3000-4000 times liquid, or use 80% of the dichlorvos emulsion 1500-2000 times liquid, you can also use 2.5% of the cypermethrin 3000 times liquid for spraying, spray once a week, spray 2-3 times.
The above is the leek disease and insect pest I share for everyone to the leek harm, understand the prevention and control methods and planting skills, in order to improve the yield, all of it, I am Xiaodong, like my can pay attention to me, every day for everyone to share some knowledge about the three rural, I hope you can like, think I said the wrong place, or what you want to say to me can leave a message below to me, we can communicate and communicate, thank you for your support and attention!