Planting spring corn requires good seed plus good methods
Fresh-eating type corn is generally divided into sweet corn and waxy corn; it has a unique flavor, is rich in nutrients, has a large market capacity, high yield and good returns. When grown as spring corn, it takes about 90 days from sowing to fresh ear harvest and does not affect the planting of hybrid late rice. To grow spring fresh-eating type corn well, the following points should mainly be grasped: first, choose...
Choose good seed: To plant spring corn, choose varieties with a growth period of more than 112 days, a well-developed root system, a compact plant type, upward-pointing leaves, vigorous growth and strong stress resistance. Before sowing, carefully select the seed, remove small grains, diseased grains and shriveled grains, and dry them in the sun for 2-3 days to enhance the seed's water-absorbing capacity, promote earlier emergence and improve seedling uniformity.Choose coated seed: When buying seed, it is best to choose coated seed. If the seed is not coated, 50 grams of phorate plus one stick of BiduoShou can be used to dress 20 kg of corn seed, to control underground pests and make the seedlings emerge earlier. Choose the best sowing time: The sowing time of spring corn should be determined according to soil moisture. After the reserved spring land has been autumn-plowed and winter-irrigated, in early spring it should be harrowed and rolled to preserve moisture; the sowing time for ordinary plots is generally from late April to early May.
Increase fertilizer application: Before sowing, finely prepare the land and increase the application of phosphate fertilizer and potassium fertilizer, adjusting the ratio of the three elements nitrogen, phosphorus and potassium in the soil, generally 1:0.7:0.5 is suitable. For a medium-yield plot with a yield of 600 kg of corn per mu, 20 kg of diammonium phosphate, 25 kg of urea and 15 kg of potassium sulfate should be applied per mu. When sowing, apply 70% of the nitrogen fertilizer and all of the phosphate fertilizer and potassium fertilizer as base fertilizer at one time, and apply the other 30% of the nitrogen fertilizer as topdressing at a depth of 15 cm near the roots when the plants grow to 10 leaves.
Sowing technique: Where conditions permit, mechanical sowing or double-tube sowing should be encouraged, with a sowing rate of 2 kg/mu, and seed and fertilizer sown separately with the tubes. Note that fertilizer should be applied 3-4 cm below the seed; doing so can not only prevent seedling burn but also promote the seedling roots to grow downward. Where conditions do not permit, a small plow can be used to open furrows and the seed scattered by hand, with a sowing rate of 2.5-3 kg/mu. Master the above measures well, and the framework for a high yield will be set up, and the ideal corn yield can be obtained after autumn.