During grain filling period, the stems and leaves suddenly shrank, gradually withered and gray, causing grouting to be interrupted, sometimes infecting serious diseases, causing panicles to become light grain and severely reduced. This phenomenon is known as “tengling†or “river†in Shanxi. . "Teng injury" occurs in large valleys in the plains. The more prosperous in the later stages, the more prone it is. The environmental conditions in which “several injuries†occur are all due to excessive soil moisture, high field temperatures, high humidity, and poor ventilation and light transmission. Specific measures against this situation include:
1. Use wide and narrow rows for planting to improve the ventilation and light transmission conditions in the field so that the grain moisture and temperature will not be too high during grain filling.
2, high soil, so that the lines into a ditch, easy to drain.
3, late watering, in the afternoon or evening.
4, in the possible occurrence of "Teng injury", promptly scabs scattered, and ditch drainage.
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