Beware of the current phenomenon of early flowering of rapeseed

Due to the influence of warm winter weather, some fields on the growing regions of rapeseed in our province are prosperous. In some regions, there are a few mosses with early moss. However, it has a small area, scattered distribution, varying degrees of performance, and overall controllability.

According to the survey, the main performance of early flowering of rape in our province is as follows:

The first is the phenomenon of early florets and early flowering. This situation accounts for a large proportion of the early-mossing early-flowering plots, which is heavy and harmful. In particular, some non-dominant breeds have been wary of the loss of yield caused by early moss early flowering in the warm winter years.

The second is the phenomenon of early moss early flowering in early planting of Wang Changtian. This is a high-yielding field in autumn with no loss of yield. Belong to early sowing cause early moss early flowers situation.

The third is the phenomenon of obvious early deflowering and late sowing of weak early seedlings. This situation generally occurs in the three types of seedlings, this phenomenon is mainly the seedling period of rapeseed vegetative growth is not enough, reproductive growth in advance, in case of warm winter air is prone to early moss early flowering phenomenon. In addition, some early morning sowing rapeseeds are also prone to early moss early flowers.
Experts reminded of the above phenomenon. For a large area of ​​rapeseed production, the main channel is to prevent flooding and waterlogging, rationally make up and promote growth, regulate and prosper long-term antifreeze, and promote the four harvests.

For some early moss and early flower fields, different measures should be taken to address the actual causes:

The first is early flowering and early planting of long-distance mottled flowers that appear in long fields. At present, it is sufficient to directly remove flowering plants from hybrid plants and weak and self-producing rapeseed plants, resulting in little loss of yield. For most plants in the field in early February, there is a flowering trend, and the top picking measures must be taken in time. The specific method is to pick the top at the beginning of February to see the flowers, dry dew after the removal of the main stem and 2-3 branches, then apply about 5 kg of urea per acre.

The second is the obvious early deferment of fertilizer and the emergence of early seedlings in the field of early field plots, you must think of methods to topdressing as soon as possible, where the conditions can be fertigation, timely removal of early flowers in early moss plant. Late seeding and weak seedlings are sufficient if the amount of fertilizer is sufficient in the early stage, and the drought is the only reason that the nutrients are not fully utilized by the rape, which results in slow growth and prompt irrigation and growth. The early floral shoots of some early mosses are timely dressed; the amount of delayed fertilization is insufficient. In the plots, the plants in the field are thin and small, and early moss and early flowers are used. This section of the plot can be considered for cultivating green manure in the timely manner after the spring and planting early spring crops.

The third is to early sowing early rapeseed field appeared in the early flower field, we must pay close attention to moss, timely fertilizer.

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