The onions have grown more in the past few years, and today we share the technology of onion cultivation. How can they grow white and straight。
Growing large, white, long and hard requires the following know-how。
I. Vertical plugging
Plugs must be inserted vertically into a ditch and not tilted. The depth of the plant should be fixed in such a way that it is too deep to grow and too light to affect the white length. A planting tool can be used to select a round log or small iron bar of about 1. 5 cm in diameter, and to plant it first with a shallow hole, vertically with the ground, and then with a small barbed iron, then slightly upward, so that the root must be stretched down and the onions kept straight. If the onion roots are bent at the time of planting, then the onion will also be bent at the time of harvest, and it becomes an inferior。
Ii. Pumping soil for fat in due course
In due course, it has the effect of preventing inversion, softening the mantle, increasing the length of the onion and preventing the bending of the onion. Gradually, the soil is thickened according to the age of the seed. Onions usually need to be bred three times during their reproductive period. The secondary soil is called a small training period, when the onions grow up to about 30 cm, and it is premature to cut it, the thickness of which is appropriate at about 5 cm, with a distribution of 75 kg of organic fat and 10 kg of compound fat。
When onions grow up to 40 cm, the second onion, i. E., maturation period, is controlled at about 10 cm, while 100 kg of organic fertilizer and 20 kg of composite nitrogen or potassium-containing fertilizer are distributed at the same time as onion growth; the third onion, which is controlled at around 10 cm, can be applied at the same time 30 kg of calcium nitrate. This earth cut cannot be applied with urea, otherwise it will become soft and white, affecting the quality of the onions。
Iii. Mastering the land height
Each time it is carried out softly in the afternoon, it is so high as not to bury its heart in order not to cause roots and plants to rot. The earth shall not be taken too wide or too deep in order to cause more wounds to the onion's roots and to infect the root disease. Every time the pedigree is kept straight, and the earth cannot be left unheard, i. E., it is buried with a leaf, so that it does not bury a leaf, otherwise it is easy to bend white and to reduce onions' merchandise. The soil shall be laid to prevent rain from washing or watering and collapse。
Onion growing technology! How can onions grow white and straight and share it with you。
