Meters to be taken
After the beginning of spring, some peasant friends have to consider how to grow spring corn. Today we are talking about what kind of measures should be taken when we say good spring corn: First, we must select good varieties: Spring corn should be selected for more than 112 days, with well-developed root system, compact plant type, red leaves, strong growth, and resistance. Strong varieties with good quality, single ear, and large grains, such as Nongda 108, Shen-test 29, Tangkang 8, etc. Before sowing, we must select seeds, remove seeds of small grains, diseased grains and alfalfa seeds, and dry seeds for 2-3 days. This will increase the ability of seeds to absorb water, increase seedling emergence, increase seed purity, reduce seedling growth, and improve the uniformity of seedlings. The second is to promote seed coating: without coating seeds, use 50 grams of A bell, add a "must be more" mix 20 kg corn seed, so as to achieve control of underground pests and early emergence of seedlings. The third is to select the best sowing date: Spring corn requirements are sufficient for the beginning of May, after the spring plowing, the winter plowing, the winter irrigation, the early spring should be pounding and rolling, high-yield fields in the case of public opinion can be appropriate late broadcast, the time in May 5 No. 15 The general field sowing date is from April 25 to May 5. The fourth is to increase fertilization materials: to increase phosphorus, potassium fertilizer, adjust the ratio of NPK. The production of 1200 kg of corn per mu can apply 20 kg of diammonium, 25 kg of urea, and 15 kg of potassium sulfate per acre to achieve comprehensive fertilization. The ratio of NPK is 1:0.7:0.5. The fifth is to grasp the planting form and density: Spring sowing maize promotion and other row spacing broadcast, Nongda 108, Shen test 29, Tang Kang 8 row spacing is 1.8 feet, plant spacing 0.95 feet, 3500 plants per mu. High Oil 115 has a 2 foot row spacing, 1 foot plant spacing and 3,000 seedlings per acre. Finally, talk about sowing techniques: conditional villages should promote sowing or double-seeded sowing, sowing the amount of two kilograms per mu, pay attention to seed, fertilizer separation, fertilizer placed 3-4 cm below the seed place to prevent burning Seedlings, at the same time, can also promote seed barbs. No conditions can be used to open the ditch with small rakes, hand-sprinkled seeds, sowing volume of 2.5-3 kg per mu.