Method for efficiently utilizing moisture of asparagus

Abstract

The invention discloses an efficient asparagus water utilization method which comprises the following steps: determining the distance between a drip irrigation belt and the center of a bulb disc according to the age of asparagus, laying the drip irrigation belt on the two sides of the bulb disc, determining the position of a section according to different gradients of a field, and controlling the dripping time of different gradients in a section manner, so as to realize accurate irrigation and save water consumption. By means of the method, the growth speed of roots can be increased, the humidity around a bulb disc can be controlled, the disease plant rate of root rot is reduced by 10%, meanwhile, the roots are promoted to grow around, the number of the roots is increased by 18.9%, and the yield is increased by 23.9%. In addition, the service life of the drip irrigation tape and the degradable ground cloth can be prolonged, the cost is reduced by half, and water resources are saved by 42% in the seasonal water shortage period according to the actual slope of the field in the mountainous area. Therefore, the method provided by the invention has practical application value in the management of asparagus planted in the open field and the greenhouse.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a method for efficiently utilizing water in asparagus. Background technique [0002] Asparagus (Asparagus officinalis L.) is a perennial herbaceous plant of Asparagus family. The bulb disc is a unique structure of asparagus, which gradually expands at the junction of the young stem and the primary root to form a bulb disc. The top of the bulb plate protrudes, with a large number of scale buds, and the bottom is rooted. It is a part of the tissue that connects the roots and stems of asparagus. It gradually expands as the asparagus ages. So it is called scale bud plate. The scale buds grow upwards to form a stem, and the tissue of the scale buds grows sideways to form roots. The entire root system grows 360° around, grows in a radial distribution, and stretches outwards to form a futon. Therefore, the root distribution of asparagus over two years old wi...

AI Technical Summary

Problems solved by technology

[0005] (1) At present, drip irrigation belts are not arranged according to the development characteristics of asparagus bulb disks that gradually expand and grow with the growth of bamboo shoot age. The drip irrigation belts are too close to the bulb disks, causing root The water-tropism is weakened, which affects the root growth rate

At the same time, the humidity around the bulb disc is too high for a long time, which leads to the easy breeding of infectious bacteria in the wound on the bulb disc after the tender stems are harvested, thereby aggravating root rot and other diseases

[0006] (2) The existing drip irrigation method does not follow the characteristics that the root system grows 360° around, distributes radially, and extends outwards, and only lays a single drip irrigation belt on one side , and the drip irrigation holes are distributed in a concentrated manner. Due to the water orientation of the roots, the roots are concentrated on the side of the drip irrigation belt, which is not conducive to the growth of the root system and affects the yield.

[0007](3) The existing drip irrigation method directly places the drip irrigation tape on the soil surface without opening a small ditch and covering it with a cover. The water evaporates quickly, and the drip irrigation tape Long-term exposure to the hot sun is easy to age, resulting in low efficiency of water resources and agricultural materials utilization

[0008] (4) A drip irrigation belt controls a row of asparagus without considering the actual slope of the field in the mountainous area, resulting in more water dripping downhill than uphill, and unreasonable use of water resources, resulting in waste

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