It is closely related to the output to determine whether the food-fixing device 3360 will be fixed sooner or later, and it has significantly increased the early food-fixing yield in a certain range. The experiment showed that, compared with July 6th (light summer), planting early on June 20th (summer solstice) increased the yield by 32.9% in half a month, and planting early on June 6th (awn). The selection method is convenient, and the plot with thick plough layer and no green onion, onion, garlic and leek is planted. The distance between the north-south ditches is 80cm, and the depth and width of the ditches are 30-35cm respectively. Soil and miscellaneous fees (or organic fertilizer or biological fertilizer100kg/mu) are evenly sprayed at the bottom of the ditches. Slap the furrows concavely and convexly, and pat them firmly, so that people can stand up when transplanting. The best transplanting time is mid-June, but it must be planted in the later period.
Pour small water on the seedlings, be careful of the seedlings, prevent the fibrous roots from being injured, remove the residual hairs with pests and diseases, select the long hairs with typical characteristics of this variety, determine the size and grade, and plant them along the seedlings. Usually, there are 26,000 ~ 28,000 trees per mu (50 ~ 60 trees per meter in some areas are calculated separately), that is, 80 cm ditch spacing, 3 cm Dandoulang and Gru spacing. Wu-tang clan saplings can grow 10 mu of green onions. Spreading new high mulch film after transplanting seedlings can effectively prevent evaporation of ground water, prevent diseases and pests of seedlings and delay the growth of seedlings. After spreading sight distance excrement to loosen the ditch bottom, scrape off the soil at the ditch bottom with a reasonable hook or a small hoe, and then you can add water. After water seepage, the wave is inserted into the wave side with a length of 40 cm and a diameter of 1.5 cm, and the top is bifurcated. When you put in the onion seedlings and branches and pull them out of the ditch, you will flash a hole, that is, the onion eye, which helps to keep the roots and onions ventilated, windy and basking in the sun. This is called the sunbathing eye.
When cultivating seedlings, the soil moisture must be sufficient. Too much water, mud at the roots, graded seedlings. With too little water, it is difficult to produce saplings. If the soil is too dry, pour water once, and make a comeback when it is wet and dry. At the beginning of sowing, dig deep with a three-tooth hook or a short chain, leaving a lot of fibrous roots to reduce damage. Don't pull out the seedlings one by one, pull them out one by one. After germination, dust mud, smooth the order, immediately remove fallen leaves, remove pests and diseases, residual images and seedlings that do not meet the typical characteristics of varieties. Then classify the onion seedlings according to their size and length, and pile them up separately. Be careful not to make the seedlings too thick and make them hot. It is best to germinate, grade and order food. Give priority to the use of 1 and 2-level saplings during dinner, and try not to use them when waiting for external seedlings.