Corn high-tech planting water and fertilizer management
(1) Base fertilizer, 1000 kg of high-quality organic fertilizer (such as pig manure) per acre, 80 kg of compound fertilizer with effective content of 25% plus ZnSO4 (ie zinc sulfate) and MnSO4 (ie manganese sulfate) 1 kg plus borax (can be sterilized) 2 2 (the application is good: open a ditch near the crop root between the crop rows, put the fertilizer into the ditch); now there is corn special fertilizer.
(2) Applying seedling fertilizer in the 3-leaf one-heart period, 10 kg of water is poured into the roots with 1 to 5 to 2 urea. (Note: can not be poured onto the leaves, otherwise it will cause burning seedlings) Combined with spraying of photosynthetic nutrient film fertilizer (light fertilizer) can enhance photosynthesis productivity nutrients and chlorophyll, advanced environmentally friendly plants to increase fertilizer, increase production, increase color, leaf hypertrophy, The stem is strong.
(3) When the 6 leaves are topdressed once, use acupoint casting method (ie: use a thick wooden stick to make a hole at 8-10 cm beside the root of each corn, use a common mineral water bottle cap to cover the urea and put a hole, then The hole should be covered.) Pay attention to keep the soil moist. If the soil is dry, you can pour a small cup of water after fertilization. Do not pour too much. It is better to moisten the soil. Spraying plant electronic fertilizer can play a supernormal effect.
(4) When the 12 leaves are used, the top dressing is applied once again. Each of the mineral water bottle caps is covered with 2~3 caps and directly spread on the roots. Then the soil is cultivated (cultivating the soil: the soil between the rows or the ditch is cultivated on the base of the plant, the ridge surface, and the soil is formed. Ridge or sorghum management measures. The soil can increase the thickness of the fertile soil layer of the root system, which is beneficial to drought prevention and protection, as well as drainage and flood control. It can also promote the occurrence of secondary roots on the plants buried in the soil and create a growth for the adventitious roots. A good root-extension environment is conducive to preventing lodging and reducing weeds.
(5) Watering once when the corn is drawn or spun. At other times, if the leaves are not rolled at noon, there is no need to water them, because corn is a drought-resistant plant, and it is not good to water too much.
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