The corn flower grain period mainly refers to the time from the male to mature, probably lasts about 50 days.
But many growers in the corn kernel period, are basically not much management, but this period is to improve the yield and quality of the key period.
So its specific management content below to understand it.
1, fertilizer
Corn in the kernel period when you need to provide it with sufficient nutrients, as a way to increase the leaf area of the corn plant, improve photosynthetic efficiency.
Usually, the fertilizer is applied to the grain, can choose to apply before and after the flowering period of the female ear, the fertilizer is mainly urea, the amount of 15-20kg per acre.
The benefit of the fertilizer is that it can make the grains of grouting strength faster, so as to achieve the purpose of increasing yield.
2, watering
Flowering kernel period is the critical period of corn water needs, the period of water consumption can account for about 50% of the overall, if the field drought water shortage, will lead to delayed filament extraction, affecting the fertilization pollination, which directly affects the yield of corn.
Particularly some of the summer corn planting area, in the flowering of the grain period, a long time in the dry weather, this time it is necessary to timely irrigation.
3, artificial pollination
Artificial pollination period is generally chosen in full bloom, artificial pollination there are mainly 2 measures, one, directly shaking the corn stalks, so that the pollen falls for pollination; the second, to take the bamboo pole method of pollination.
And in the process of pollination should also pay attention to the usual pollination time should be selected in the morning on a sunny day without wind, in addition, in general, to artificial pollination 2-3 times.
4, pest control
Corn grain flowering is also some of the high incidence of pests and diseases, such as insect pests to the corn borer is the main, the disease is to the large / small spot disease is the main.
Corn borer control methods can be used 200 g / liter chlorothalonil suspension 3-5 ml / mu or 5% abamectin water emulsion 15-20 ml / mu and other agents for prevention and control; and large / small spot disease can be used 25% pyrazole ether mycophenolate suspension 30-50 g / mu or 20% triadimefon emulsion 1000-1500 times the solution of agents for prevention and control.
5, spraying foliar fertilizer
In the flower and grain period if the lack of fertilizer, you can take the method of spraying foliar fertilizer to quickly replenish, by spraying 0.5%-1% urea solution and 0.1%-0.2% potassium dihydrogen phosphate solution to extend the functional period of the leaves, improve photosynthetic efficiency, so as to achieve the increase in yield.
The above are the five major management points of corn flowering grain period.
Overall, any period of corn growth has its own special significance, growers should not go to ignore, but should master its management points, and choose the appropriate management measures, so as to truly realize the high yield.
About the management of maize kernel period is here, welcome to read other agricultural content of the green melon network.
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