Method for double-crop no-tillage planting of winter rape after planting of corn with fully covered film on double ridges and furrows

Abstract

The invention discloses a method for double-crop no-tillage planting of winter rape after planting of corn with a fully covered film on double ridges and furrows. The method comprises the following steps: 1) soil preparation and moisture conservation; 2) base fertilizer application: a step of applying farmyard manure and a mixed fertilizer of urea and calcium superphosphate, and cooperatively applying a nutrient equilibrium agent; 3) planting the corn by adopting a form of ridging and film-mulching; 4) corn harvesting and topdressing: after harvesting of the corn, mixing pure N, P2O5 and K20 with the ratio of N to P to K to be 1: 1.14: 1.05, then applying the mixture by spray irrigation, and cooperatively applying the nutrient equilibrium agent; 5) seed selection and seed treatment: a step of carrying out seed dressing by mixing with toxic fine soil; 6) winter rape dibbling: a step of dibbling the winter rape on an original corn film; 7) reinforcement of field management; and 8) disease and pest control and harvesting. The planting method provided by the invention has the advantages of simple operating process, less labor and capital investment and conservation of time, labor and cost, guarantees high yield of the corn, improves the yield and the quality of the winter rape, realizes double cropping every year, achieves complementation in summer and autumn, and expands the planting area of the winter rape to northern arid areas and edge-forest mountainous areas.

Description

technical field [0001] The invention belongs to the technical field of crop planting, and in particular relates to a method for planting winter rapeseed with full film double ridges and two crops of no-tillage sowing corn. Background technique [0002] Rapeseed is the main oil crop in my country, and it is also the fifth largest crop after rice, wheat, corn, and soybean. Its planting area has exceeded 120 million mu. At the same time, rapeseed is a combined crop of "using land to nourish the land", which has little conflict with food competition for land, which not only helps to increase soil fertility, but also increases the yield of rice planted after rapeseed by about 15% compared with that after wheat stubble. More importantly, there are few varieties of winter crops in the northern region. Rapeseed is the second largest economic crop after wheat, but its commodity rate is higher than that of wheat, and its planting area is increasing year by year. [0003] At present, ...

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Problems solved by technology

[0005] However, the report realizes timely sowing of rapeseed through early sowing and early harvesting of corn. However, since the rainfall in the northern region is mostly concentrated in late summer and early autumn, the yield of corn will inevitably be affected due to the lack of rain during the growth process.

In addition, this method does not treat the rapeseed seeds, and after the corn is planted, many kinds of pests must be attached to the soil. Therefore, the incidence of rapeseed is relatively high. More importantly, it adopts the traditional method of fertilization, and the fertilizer structure is single. After the entire growth period of corn, the ratio of soil and fertilizer is out of balance, which in turn affects the fertilizer demand of rapeseed, resulting in a decline in yield

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