At the moment of the best carrot growing period, Shandong has a large area of ​​carrots, and the carrots produced are of good quality. Many regions can meet export standards, and vegetable farmers have also increased their income. In this issue, the invitation for the operation of the carrots in the south of the Jiaonan Economic Zone must be described as follows. First, choose a variety Spring sowing carrots, the selection of varieties is very strict, we must choose the late bolting, heat resistance, good varieties, short growing period of early maturing varieties, such as Hongying 2, Hongxiu, 7585, improved five-inch and so on. Second, determine the sowing date In the carrot growing area in Shouguanghua Town, Hezhou Town, Qingzhou City and the surrounding area, the area is generally two carrots a year (spring sowing in early spring in June and sowing in June in early spring) and sowing in July and August. , harvested in November). Most vegetable growers usually choose the planting time after the beginning of spring, that is, in early February every year, local farmers are covered with a small arch to increase the temperature. In fact, according to statistics, the minimum temperature for sprouting carrots is 7°C. The sowing time for spring carrots in the northern and northern parts of our province is generally from late March to early April. If the sowing is too early to cause premature seizures Late planting is vulnerable to storms caused by late growth. Third, choose land, site preparation Carrots are rich in soil, loose in soil, well drained, rich in organic soils or loam, and they can also produce higher yields if cultivated properly on some clay grounds. Spring carrot cultivation must choose land plots that are high in elevation and easy to pour. It is one of the important factors that determine the success of cultivation if the drainage is unobstructed on the clay land. In particular, the requirements for varieties with delicate meat and low cellulose content are more stringent. Because carrot roots are deep in the soil, if the soil is too shallow and the soil is not loose enough, the roots of the meat are easy to bend, short, and even occur. Therefore, it is required that the soil be deeply ploughed and deep ploughed into the basal fertilizer. The basal fertilizer is preferably decomposed organic fertilizer (such as the use of fresh manure, prone to fork roots), and 5-6 cubic meters of organic fertilizer per acre. If there is no organic fertilizer, it can also be Mu is applied to 50 kg of compound fertilizer plus a small amount of urea and potassium dihydrogen phosphate, then deep plowing 25 to 30 centimeters. The soil blocks are broken into ridges, the ridge width is 1.0 to 1.3 meters, the furrow width is 0.3 to 0.4 meters, and the depth is 0.2 meters. about. The topsoil on the ridge surface must be finely crushed and leveled to facilitate sowing and germination. Fourth, fine sowing First of all, we must pay attention to the quality of the seeds and the germination rate. If necessary, we should conduct a germination experiment first to ensure proper seeding rate. It is best to soak seeds first in spring so as to facilitate emergence. When the weather is dry, it is best to soak the soil and sow the soil and then sow the soil. Fifth, sowing method 1. Soaking: In the afternoon 1 day before sowing, soak the seeds with warm water at 37°C for 12-16 hours, remove them and dry them, and mix them with dry sand to sow them. Some sandy soil. 2, sowing: sowing and seeding can be. The cover soil is about 1.5 cm thick. After sowing, use medlar for 2 to 3 times to make the surface smooth and the top of the seed to be finely chopped. After sowing, tap the back face with a spade, so that the seeds and the soil are tightly bound. 3, spraying herbicides: carrots generally slower emergence, after soaking, from sowing to emergence takes about 10 days, the general weeds unearthed before the seedlings, resulting in weeds, so the best sowing the day or the second day, per acre Herbicide 200 ml of water and 50 kg of water are sprayed on the surface, and the control rate of most weeds can reach 80%. 4. Watering: After sowing, if it does not rain, it must be watered along the ditch on the day of sowing, otherwise it will affect the emergence rate. When watering, the water must be allowed to seep from the bottom to the top to keep the soil surface moist, and it is also possible to prevent the rain from consolidating the soil and cause seedling difficulties. If the outside temperature is suitable, remove the mulch or small arch shed 9 days after sowing (before the carrot seedlings are excavated), or properly exfoliate the seedlings after the carrot seedlings are unearthed, and select the appropriate time to remove the membrane.
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