Water-saving and high-yield cultivation method for dry land wheat

Abstract

The invention discloses a water-saving and high-yield cultivation method for dry land wheat, and relates to cultivation methods of crops. The water-saving and high-yield cultivation method for the dry land wheat comprises the following steps of fertilizing, farming, variety selecting, flat planting, group controlling and intertillage weeding and suspension of soil conservaton drought-resisting. According to the water-saving and high-yield cultivation method for the dry land wheat, downward tying probability of a root before winter is increased through early deep applying of fertilizer, root shoot ratio is increased so as to enable a root system to sufficiently absorb moisture and nutrient of soil at a deep layer, even-row flat planting is adopted to increase the dry land wheat group, strong seedlings are bred, and a reasonable group management strategy is adopted to increase the dry land wheat yield through synchronous improvement of grain number and thousand seed weight on the foundation of a large group. Risk of dressing waiting for rain in the late growth stage of wheat is reduced, and effort and labor are reduced.

Description

technical field [0001] The invention relates to a cultivation method for crops, in particular a water-saving and high-yield cultivation method for dryland wheat. Background technique [0002] The average annual precipitation in the dry farming areas of northern my country is between 250-550mm, and the rainfall in most areas is concentrated in July, August, and September, accounting for about 60%-70% of the total annual precipitation. The rainfall in winter and spring The amount only accounts for 10%-15%, and the frequency of spring drought in the northern region is quite high. There is relatively much rain in summer, but the rainfall is too concentrated, and there are many showers, heavy rains, and rainstorms. In hilly and mountainous areas, most of them form surface runoff and are lost. The utilization rate of rainwater by crops is less than 30%. In recent years, the variability of annual rainfall in northern regions has been relatively large. In addition to spring droughts...

AI Technical Summary

Problems solved by technology

There is relatively much rain in summer, but the rainfall is too concentrated, and there are many showers, heavy rains, and rainstorms. In hilly and mountainous areas, most of them form surface runoff and run off, and the utilization rate of rainwater by crops is less than 30%.

[0011] 1. Fertilizer needs to be applied in batches. Topdressing is limited by the rainfall after the wheat turns green. If there is no rainfall and no irrigation, the fertilizer topdressing will not be applied, which will affect the growth and development of wheat in the later stage, and the phenomenon of defertilization will occur

And topdressing fertilizer is labor-intensive and time-consuming