Carrot bifurcation is the result of the growth of the main root (flesh root) being blocked and the lateral roots swelling. Under normal conditions, lateral roots only absorb water and nutrients. If the main root of the carrot is damaged or the growth is hindered, the lateral roots will accumulate nutrients and inflate. The main causes of carrot fork root split are the following:
1, seed quality. Chen seeds have weak viability and poor germination, affecting the growth of the young roots. Some radicles are destroyed and bifurcates are easy to occur. The seeds harvested during the rainy season are susceptible to poor embryo or embryo maldevelopment due to poor pollination. These seeds are prone to bifurcation of fleshy roots.
2, soil. Carrots in heavy soil have poor permeability, and they are easily impeded from growth. The roots of meat are prone to bifurcation. The main roots of shallow, hard-plotted plots are hindered from growth and promote the development of lateral roots. The roots of meat are prone to bifurcation; Hard objects such as stones, bricks, tiles, roots, etc., hinder the growth of fleshy roots and produce forked branches.
3, fertilization. Carrot is very sensitive to the concentration of fertilizer solution in the soil, suitable for the normal growth of the soil solution concentration of 0.5% seedling period, meat root swelling period of 1%, the concentration of excessive meat root prone to bifurcation, so excessive fertilization or top dressing will cause carrots Bifurcation; the application of unprocessed fresh organic fertilizer, seed sowing on the fecal mass or direct contact with chemical fertilizer can cause fleshy root bifurcation.
4, improper management. The cultivator, sedge grass, do not pay attention to damage the fleshy roots or growing points, resulting in bifurcation.
5, underground pests harm. Severe knots of severe root-knot nematodes have serious bifurcations. In addition, bites such as earthworms and earthworms can cause bifurcation.
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