Corn is sown to jointing stage as seedling stage. Mainly long root growth, stem segment differentiation, growth center for the root system. The seedlings are warm, more resistant to drought, more afraid of earthworms, and the fields are more afraid of seedling shortages and grass shortages. The soil should be loose. Field management should be based on "early management of early-onset," to prevent the emergence of "old seedlings" to reach the root, strong seedlings, seedlings early, adequate, homogeneous, strong purpose. Ground Chili Powder,Chili Powder,Red Chilli Powder,Red Chile Powder Ningxia Ningyang Halal Food Co., Ltd. , https://www.ningyangfood.com
Early seedlings should be seedlings during the three-leaf period and four-leaf stage seedlings. When the seedlings are to be seedlings, they must go to seedlings, weak seedlings, diseased seedlings, and hybrid seedlings, leaving the same strong seedlings. In the severely irrigated section, the two plants with the same growth can be left to ensure the density.
After cultivating and weeding maize, we should timely cultivating loose soil in order to loosen the soil, eliminate weeds, and promote deep rooting. The cultivating frequency is 2 to 3 times. The cultivator has a deep understanding of the principle of shallow seedlings and deep rows. The first cultivator was carried out before the seedlings, with a depth of 3 to 5 cm. The second and third cultivators are conducted before jointing, and the depth is preferably 8 to 10 cm.
Fertilizer top dressing is generally done after the seedlings until the jointing. The fertilization has the effect of promoting roots, strong seedlings, and promoting strong stalks, which lays a good foundation for many spikes and spikes. If you do not apply sufficient fertilizer, you must catch it early. To apply partial fat to thin seedlings and promote early onset of seedlings. The water consumption of maize during the seedling stage accounted for 31.8% of the water consumption during the whole growth period, and the relative soil relative water content was about 65%. The number of watering in the seedling stage can be controlled between 1 and 2 times, and watering must not be performed when watering. Irrigation volume is about 60 cubic meters per mu. Seedlings in the seedling stage should be digging trenches in time for drainage, lifting the waterlogging, and timely cultivating in order to return seedlings.
The main pests for pest control and corn seedlings are Mythimna separata and Thripidae, and the control of armyworms can be sprayed with 50% phoxim emulsion 3000 times solution. Thrips were diluted 1500-fold with 40% dimethoate emulsion or 50% dichlorvos emulsion. Spraying dimethoate and pyrethroid pesticides can also kill aphids, such as hoppers and other insects.