It's spring ploughing season. I studied spring ploughing with the farmers in the village. Many farmers are asking: Now that flowers are going to be planted, can peanuts be interplanted with corn? Will interplanting affect peanut yield? The growth cycles of peanuts and corn overlap, and many people say that "interplanting is not allowed". What if interplanting does not affect the yield?

corn and peanuts can be interplanted. Maize is a typical C4 plant, which is tall, has strong respiration and photosynthesis, and needs a lot of nitrogen fertilizer during its growth. Peanut is a typical shade-tolerant plant with short plants. Because it is an underground pod plant, it needs more potassium fertilizer all its life. Root nitrogen-fixing bacteria can fix nitrogen in the air for field crops to absorb and utilize. Intercropping two crops can make use of each other, learn from each other's strengths and improve yield. Moreover, peanut intercropping with corn is well ventilated, which can make full use of light energy and increase corn yield. It is a measure to make full use of marginal effect and illumination to obtain high yield.

This interplanting mode must be mainly peanut, supplemented by corn interplanting. The recommended planting method is more than 1: 2, which does not affect the peanut yield, and has good ventilation and light transmission, while the corn can obtain extremely high yield by walking. Peanuts are sown in late March and early April, and corn is sown in early June. Corn is transplanted by back-to-back combination of plastic trays. The sowing distance of peanuts is .4m from corn, and the row spacing between peanuts is .3-.5.

before sowing, apply base fertilizer, increase calcium superphosphate, spray special herbicide for peanuts, and then cover the ground with film. After emergence, check the seedlings in time, replenish the seedlings in time to weed, irrigate properly, and pay attention to the prevention and control of peanut diseases and insect pests. The peanut ridge with a width of 5 cm is covered with a plastic film of 9 cm. In order to increase the ground temperature and promote peanut emergence, a plastic film was covered with an arched film, the height of the arch was .5 m, the distance between the two arches was 1.2 m, and corn was planted in two rows between peanut ridges.

Because the traditional interplanting of corn and peanut is a simple interplanting method of interplanting multiple rows of peanuts with one or more rows of corn without changing the conventional row spacing of corn and peanut. The uneven distribution of corn and peanuts not only can not fully grow, but also can not give full play to the shading effect of corn, the nitrogen fixation effect of peanuts and their interaction.

1. Variety selection and sowing amount: Peanut was selected as an excellent variety with late maturity, compact plant type, concentrated pod setting, strong drought resistance and better resistance to leaf spot. The sowing amount of peanuts per mu is 15-2kg, and the sowing amount of corn per mu is 1kg.

second, sowing time: sow at the end of March or April, and sow at the same time.

3. Planting density: 65-1 ponds per mu, with 1-2 peanuts per pond; The planting method of corn is interplanting 2 rows every 1px, with the plant spacing of 2-75px and the row spacing of 75px, and the yield per mu is 1-15 plants.

fourth, balanced fertilization: determine the amount of fertilization according to the peanut production level, the abundance and deficiency of main nutrients in the soil and other factors. Every 5 kilograms of pod production needs to absorb 3 kilograms of nitrogen, .5 kilograms of phosphorus and 1.5 kilograms of potassium, and part of the nitrogen comes from rhizobia topdressing. The base fertilizer should be mainly organic fertilizer, supplemented by chemical fertilizer, and combined application of nitrogen, phosphorus and potassium.