Affected by the low temperature in mid-April, the early rice seedlings grew weakly, the basic seedlings were less, the population growth was uneven, and the birth process was delayed compared to last year. In order to promote the transformation and upgrading of the seedlings, the following technical guidance is provided for reference by local governments.

First, due to the situation of the seedlings to strengthen the delivery of fertilizer and water

1. Rationally manage water slurry management.

For the fields with low number of basic seedlings and stem pods, shallow water-moisture aerobic irrigation is adopted before the tillering-to-seedling stage. The combination of moist and shallow water is mainly based on wetting, and the growth of the root system is enhanced, and the ability to enhance fertilizer absorption is promoted. Childbirth is born soon. In the medium term, depending on the situation, light or no field.

For plots with early planting, fast cropping, and excessive seedlings in the field, it is necessary to appropriately stage the field in advance and control the seedlings.

2. Apply balance to raise Miao Fei.

Since mid-May, the temperature has risen, the growth rate of seedlings has accelerated, and the amount of fertilizer needed for growth has increased. For plots with weak seedlings and few stems and pods, a small amount of seedlings should be topdressed. Generally dominated by nitrogen fertilizer, about 5 kg of urea per acre.

2. Strengthen field management in the middle and later stages according to the birth process

1. Adhere to shallow water, moist irrigation.

From jointing and booting to flowering, we must adhere to the shallow water booting and grow water in an inch of water. Grouting to dry and wet alternates during the mature period, raising the roots to protect the leaves, live to maturity. Do not cut off water early in the late period, resulting in high temperature cooked, affecting production.

2. Focus on top-height, grain fertilizer.

Jointing and booting stage, early application of spike fertilizer, per acre topdressing 3-4 kg of urea, potassium chloride 3 kg, attack large spikes, improve the spike rate and ear number, to make up for small groups, panicle number is insufficient.

Strengthen late-stage foliar spray fertilizer, enhance functional leaves, promote grain filling, and increase seed setting rate. In the grain filling stage, it is common to spray primary foliar fertilizer such as potassium dihydrogen phosphate.

Third, depending on diseases and pests to strengthen the system of prevention and control of pests and diseases

It is necessary to prevent and control insect pests of early rice in the early stages of rice, such as rice thrips, planthoppers, and one generation of cicada, and pay attention to the combination of drugs before and after the break period to prevent pests and diseases such as panicle blast.

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