Rice planting of wheat in the paddy field can increase the utilization of land and warm-light resources. It can not only achieve the initiative of the season, but also achieve high yields of both rice and wheat, and can greatly simplify the wheat farming process and reduce labor intensity. The following key measures should be taken in production.
The wheat root system with good varieties of rice cultivars was selected for its shallow distribution and strong tillering ability. The varieties with resistance to lodging, strong antifreeze ability and relatively compact plant type should be used.
The period of interplanting rice and wheat is usually 7 to 10 days. The general sowing period in southern Jiangsu is October 23-31, October 18-25 in Suzhong, and October 10-20 in northern Jiangsu.
Appropriate amount of uniform seeding sowing early broadcast of wheat, but wheat seedlings are vulnerable to damage when harvesting rice, so the required sowing rate between the constant sowing and precision sowing between the usual amount of 6 to 8 kg per acre, using mist Machine sprayed to ensure uniform sowing.
Before the fertilization of fertilizers, rice was treated with 15 kg of compound fertilizer and 10 kg of urea per hectare before rice was harvested to achieve early-onset seedlings. 1 to 2 days before sowing or sowing with herbicide mixed with urea or fine soil in the rice leaves when there is no dew when the uniform application, to keep the soil moist after medication, the field can not collect water.
Before the sowing of the wheat field without soil sealing treatment before and after sowing, after the rice is harvested and separated from the field, the appropriate stem and leaf treatment agent is selected according to the age of the grass and the grassy phase, and the safe medication is taken care of.
The anti-freezing and interplanting wheat fields in the field are not covered with seeds, and the wheat tilling nodes and some root systems are exposed on the soil surface. They are vulnerable to adverse conditions such as drought, lack of fertilizer, and low temperature. Measures should be taken to cultivate strong seedlings. (1) Before harvesting rice, after the rice is harvested, 1500-2000 kg of organic fertilizer or 150 kg of straw is covered per mu. (2) Rice leaves 25 to 30 centimeters high when harvesting to shield the wheat seedlings from wind and frost. (3) Before the 3 leaf 1 heart period of wheat seedlings, the ditch is evenly covered with 2 cm thick soil to increase the fertilizer efficiency and protect the earthworms, promote the root barrows, protect the wheat seedlings safely overwintering, promote the low tillering and secondary root occurrence, and achieve the cultivation of strong seedlings and improvement. The purpose of the rate of spikes and spikes.
Fertilizers usually use 9 to 10 kg of pure nitrogen per mu for seedlings. During the wintering and returning to the green period, the appropriate amount of balance fertilizer was applied to the field where the tiller was insufficient or the power was reduced and the yellow pond was promoted. There are few roots in the rice under the wheat cultivars, and the later soil fertility is poor. It is easy to get rid of premature aging. The jointing and panicle fertilizer generally applies 15 kg of urea per mu. It is applied twice in the inverted 3-leaf stage and the flag leaf stage.
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