There are differences in the application of regulators in different types of cherry tomato.
Cherry tomato varieties are generally divided into two types: one is infinite growth type, that is, the top is not capped and can grow continuously; the other is self-capping type, which automatically caps after growing a few leaves and continues to grow upward by relying on side branches. There is little difference in the management of these two kinds of varieties, but there is a great difference in the application of regulators. The self-topping cherry tomato is more sensitive to regulators because of its low gibberellin and other growth hormone content and easy capping. However, after the application of regulators, the growth and development of top and lateral branches stagnated and it was difficult to recover. In order to adjust the growth trend, the self-capping type should mainly think of ways to reduce the temperature, control watering, reduce the application of nitrogen fertilizer and so on. The infinite growth cherry tomato grows vigorously, the content of gibberellin and other growth hormone in the body is high, the growth is faster, it is easier to grow, and the effect of applying regulator to regulate the growth is better. Therefore, in order to regulate the growth of cherry tomato, we must distinguish between infinite growth type and self-sealing top type, and can not be used indiscriminately.
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Five points for attention in the use of regulators in cotton fields
First, pay attention to the scope of application. The cotton field which is suitable for the use of plant growth regulators must have good water and fertilizer conditions, and the cotton has a prosperous growth trend or has already grown. It can not be used in cotton fields where the climate is dry, cannot be watered, the growth is weak or the growth is inhibited by diseases and insect pests. Second, pay attention to the period of application. Propranolol in general.
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