Method for planting sunflowers by adopting row-expanding density-reducing technology

Abstract

The invention discloses a method for planting sunflowers by adopting a row-expanding density-reducing technology. The method specifically comprises the following steps that a planting land is deeply ploughed; large line spacing, small line spacing and plant spacing are arranged; holes are dug in the center line of the large line spacing at equal intervals; coarse sand and an organic fertilizer are uniformly mixed according to a certain mass ratio, and the holes are filled with the mixture; a mulching film is laid on the surface of the soil with the small line spacing, and after laying is completed, the sunflower planting land is irrigated with water; improved seeds are selected, mildewed sunflower seeds and sunflower seeds which are not full are removed, airing is carried out for 2-3 days, the aired sunflower seeds are soaked in water for 19-22 hours, the sunflower seeds are soaked in water containing carbendazim for 3-5 hours, then the sunflower seeds are fished out, the sunflower seeds are drained, and the sunflower seeds are aired again; and then seeding is carried out, intertilling and weeding are carried out, and mature sunflowers are harvested. According to the method for planting the sunflowers by adopting the row-expanding density-reducing technology, the use number of the sunflower seeds and the fertilization frequency are reduced, the planting cost is reduced, the mature sunflowers are large in disc, large in disc grain number and full in grain, the grain quality is improved, and the product competitiveness is improved.

Description

technical field [0001] The invention relates to the field of plant cultivation, in particular to a method for planting sunflowers by adopting the technology of expanding rows and reducing density. Background technique [0002] At present, many countries in the world eat sunflower seeds as dried fruits. They have low oil content, large seeds, easy shelling, delicious food, and are good for health. Therefore, they have become popular snacks for people all over the world and are sold all over the world. Dried fruit market; sunflower seeds for oil are plump, have a high oil yield, are rich in nutrition, and can increase flavor; at the same time, sunflower for oil is a large category of oil crops, and its planting area is second only to soybeans, rapeseed, and peanuts. Due to the rapid development of my country's national economy, the output of domestically produced edible sunflowers and sunflowers for oil has been difficult to meet the growing demand of consumption. It can be se...

AI Technical Summary

Problems solved by technology

In recent years, due to the unreasonable planting density of sunflowers, excessive fertilizer application, and uneven nutrient absorption by plants, the cost of sunflower planting is high, the quality of seeds is not high, and the market competitiveness is not strong.