Three-dimensional breeding refers to a kind of planting (breeding) method that makes full use of the three-dimensional space. The three-dimensional breeding mode can greatly improve economic benefits, and survive two plants or aquatic products on one piece of land at the same time. Here are five better breeding models for everyone.
1. Rice field fish farming
Rice varieties such as Liangyouci 4, Liangyoupe 9, Weiyou 111, Gangyou 22 and Gangyou 725 have long growth period, high yield and good resistance. Choose a paddy field with convenient water source. Dig a fish pond (accounting for 5% to 10% of the paddy field) at the corner or end of the water source. The pool depth is 1.5 meters, and the field height is increased to 50 cm and widened to 40 cm. According to the size and shape of the rice paddy, the fish ditch is shaped into the shape of “Tenâ€, “Dayâ€, “Tian†and “Jingâ€. The ditch is 60 cm wide and the ditch is 50 cm deep, and the fish pond and the inlet and outlet are made. Connected. The culture of squid and squid is mainly used. From February to March, 300 to 400 fish per acre are placed, with 20% grass carp and carp fry. The feed can be selected from rapeseed cake, fermented rice husk, grass and the like. In the summer, the awnings are shaded on the fish ponds, and the water should be drained slowly when the fields are dried, until the fish are concentrated in the fish ponds and then the fields are dried.
Second, rice paddy crab
The rice varieties are selected as above. Open a field of 350 cm wide and 90 cm deep around the rice field, and open two grooves of 350 cm wide and 60 cm deep in the middle, and then open a horizontal ditch. The area of ​​Tanzhonggou accounts for about 1/3 of the total area. In mid-April, choose a sunny evening to plant, about 600 crab seedlings per acre (single weights of 5 grams to 10 grams), and feed with pig blood, potatoes, fresh fish, wheat, alfalfa, meat and other feed. The crab grows for 5 months and will be available in October.
Third, rice symbiosis
The rice varieties are selected as above. A 2m wide and 0.8m deep trench is opened around the rice field. The size of the paddy field is considered in the middle, and a few narrower and slightly shallower ditch than the furrow are opened as appropriate. In the middle and late May, the muddy seedlings will be stocked, with 20,000 per acre, and they should be disinfected with quicklime before seeding. Muddy feed can be made from rapeseed cake, pig manure and cockroaches. According to the season and the growth stage, the amount of feed is also different.
Four, rice field raising frog
The rice varieties are selected as above. First of all, the ridges are reinforced to more than 1 meter. The ridges are strong, and the stone surface is protected by the stone surface, and the inlet and outlet are built. The trench is opened at the near field to serve as a bullfrog protection ditch. The ditch surface is 2 meters wide and the bottom of the ditch is 1 meter wide. The total area is about 15% of the area of ​​the frog field. Set up a awning on the ditch, or plant a large leaf crop such as beans on the inside of the field for the bullfrog to live on the shore. Use a polyethylene net to block the escape. The frog-raising rice fields are generally cultivated in a semi-dry manner. Medium-sized rice is planted with multiple seedlings, transplanted in shallow water, and inserted into the basic seedlings in a wide and narrow line. Rice adheres to the principle of base fertilizer, topdressing supplement, organic fertilizer and fertilizer supplement. The young frogs were placed 10 days after planting, and were immersed for 5 minutes to 10 minutes with a mixture of potassium permanganate 20 ml and 3% salt. Generally, there are 1,500 to 2,000 bullfrog frogs per acre stocking range of 40 to 50 grams, or 2,500 to 3,000 frogs per acre. Bullfrogs are managed according to conventional methods. Shallow water culture is carried out in the early stage of frogs. Before transplanting from mid-season rice to drying fields, the paddy water placement is stable at 10 cm to 15 cm, and the water in the protection ditch is maintained at 0.5 m to 1.0 m, maintaining water transparency at 35. Cm to 40 cm.
V. Rice snails
Choose paddy fields where drought is not dry and floods are not high, and the ridges are raised to more than 50 cm. Do not use agricultural machinery when farming, do not plow, and eradicate weeds. It is advisable to raise the rice field into a long crater of 2 to 3 meters, with a water depth of 30 cm to 60 cm, and put some bamboo and wooden sticks around 30 cm in the middle for snail adsorption. Before the rice field raises the snail, a dense mesh or a small mesh with a small mesh is placed at the inlet and outlet. Around the field, the snail escaped due to the leakage of the drill hole such as the rat snake. The medium-sized rice began to be stocked 15 days after planting, and 2,000 to 4,000 young snails weighing 2 to 4 grams per acre were placed. Both plant leaves and tender stems can be used as feed, supplemented with concentrate, with a grass to concentrate ratio of 5:1. The rice fertilizer is applied at a time in the form of a base fertilizer. Rice control pests and diseases should be sprayed with high-efficiency and low-toxic pesticides, and should not be mixed. Be sure to change the water frequently, and keep the water fresh.
The above five kinds of rice fields are all kind of aquaculture products, and all of them can get good returns. Every farmer can make good use of this three-dimensional breeding mode.
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