Rice enters the returning green period and the tillering period, and its fertility characteristics are the growth of roots and leaves and the occurrence of tillering. The main objectives of field management are to promote roots, attack plagues, and compete for many spikes. In terms of management, the promotion is mainly based on the early stage and the control is mainly based on the latter stage. The main points are as follows: (1) Check the seedlings to make up the seedlings and ensure the whole seedlings: The land shall be fielded on a number of impetuous, inverted and absent pits. Check the line, do a good job fill the missing seedlings to ensure that seedlings seedlings uniform. (2) scientific management of water: to achieve "shallow water planting, inch water return green, thin moisture, timely field drying." It is not possible to cut off the water after transplanting and returning to green. Dry drought is not conducive to plant growth and development. However, until the end of the period of delivery or when the total number of stems and leaves reaches the predetermined target, the field should be drained in time. The degree of drying up the field should reach the following: Tanaka does not sink into the foot and is surrounded by fissures; the yellow roots are deep and the new roots are exposed. Of course, sooner or later, and the extent of the sun will be based on field conditions, seedlings may be determined, the growing trend, mud foot field, cold soaking fields, at the end of the foot should be sufficient early drying, re-sun, the drying time can be slightly longer, otherwise the sun, Light sun, drying time is short, weak or thin field, then dry one on the line. (3) early application of sub-fertilizer: sub tiller fertilizer should be applied in time to turn green, mainly available nitrogen fertilizer, the amount of sub tiller should be based on the amount of base fertilizer and seedlings to increase or decrease, sub tiller should pay attention to grab sunny, shallow water, side Shih Biao, in order to improve fertilizer efficiency and reduce loss.
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