Cultivation techniques of High quality Upland Rice

Rice is an important food crop in China, which can be planted in every region. At present, it can also be planted in mountain areas, and the yield is also very high. What are the cultivation techniques of high-quality upland rice?

1. Seed selection

The varieties of upland rice are various, and the areas suitable for planting are different, so the varieties with developed root system, strong drought tolerance, growth period about 10 days earlier and faster growth and development rate should be selected. The varieties suitable for planting are Yandao, 9534, Danjing 5, Danjing 6, Han297, Han96mur8 and Liaohan95 ─ 1.

2. Deal with the seeds

Before sowing, the seeds should be dried and carefully selected, then 150 grams of 25% carbendazim, 50 grams of water, and soaking the seeds for 48 hours.

3. Sowing seeds

According to the local specific conditions, choose the appropriate way, and then evenly sow the seeds on the seedling bed, and finally cover the plant ash soil, pour a small amount of water, and cover with film.

4. Transplanting

When the rice seedlings grow to about 20cm, pull up the seedlings with soil, and then plant them according to the ditch depth of 5 cm and the row spacing of 25 cm to 30 cm. The best planting depth is about 2 cm.

5. Management techniques after transplanting.

The main results are as follows: (1) Water requirement: the water consumption of upland rice mainly depends on natural precipitation, which can be met except in special dry years. Attention should be paid to replenishing water during tillering, booting and filling stage. Water supplement at tillering stage can promote early tillering and increase effective tillering. Replenish water for the first time should not be too much, too much water will make dry roots into water roots, affecting growth. Booting stage is the most sensitive period for upland rice to water, so it is necessary to irrigate timely and adequately. Good grouting water plays an important role in increasing seed setting rate and 1000-grain weight, and should be irrigated in time when there is insufficient precipitation.

(2) Fertilizer requirements: generally apply mature manure or barnyard manure 3745 tons per hectare. 510 kg superphosphate and 300 kg thiamine were applied per hectare during sowing and 150 kg to 187 kg thiamine per hectare at tillering stage. When panicle differentiation after jointing, the application of a small amount of spike-grain fertilizer, 37.5-60 kg per hectare, could prevent premature senescence in the later stage. Increase the number of grains per ear and seed setting rate.

(3) Disease and insect control: common diseases of upland rice, rice blast. In particular, neck blast and branches should be controlled. Spray 20% tricyclazole wettable powder 100 g / mu to 50 kg of water at 7-10 days before heading and at full heading stage. Damage to common upland rice pests rice leaf roller, Chilo suppressalis, Chilo suppressalis. Generally, in 7-10 days after the peak moth period, 50% methamidophos 150 ml or 25% insecticidal double 200 ml per mu is sprayed on 50 kg of water.