Root-amputating cultivation method for dwarf cowpea

Abstract

The invention discloses a root-amputating cultivation method for dwarf cowpea. The root-amputating cultivation method comprises the following steps of: firstly, conventionally culturing seedlings of the dwarf cowpea, digging up the seedlings in time after a first pair of true leaves is spread, aligning by taking seed leaves as the reference and binding the seedlings with 20-30 seedlings as one bundle with elastic bands; secondly, cutting off at a position 5 cm below the seed leaves by using a sterilized sharp knife, discarding rootstalks and root parts below the rootstalks and dipping wounds into a sterilizing root promoting solution at the dipping depth of 5cm for 10 seconds within 5 minutes; thirdly, vertically placing the treated seedlings in activate carbon powder which is sieved through a sieve with 180 meshes and is heated to be 40-50DEG C for 30-40 minutes and then permanently planting, wherein the depth of permanent planting is adjusted until the seed leaves are just exposed out of the ground, and then watering with clear water; and fourthly, applying nitrogen fertilizer after three days. According to the root-amputating cultivation method disclosed by the invention, after root parts of the sprouted dwarf cowpea are cut off, the sprouted dwarf cowpea are transplanted and original taproot systems of the dwarf cowpea seedlings are converted into fibrous root systems. With the physiological change, the root systems of the dwarf cowpea seedling become very developed, the lodging of the seedlings is thoroughly overcome, the podding peak time of the dwarf cowpea is prolonged, and thereby the yield is increased by over 30 percent.

Description

Technical field [0001] The invention belongs to the technical field of dwarf cowpea cultivation, and particularly relates to a cultivation method by cutting off the root of the dwarf cowpea after germination and then transplanting. Background technique [0002] Dwarf cowpea is a new cowpea variety that has emerged in recent years. It has the advantages of early time to market, no gluten, and aging resistance. At the same time, due to its short plant, it is conducive to intercropping with other crops. However, it has two major physiological defects: one is that the seedlings are very thin and long, and the first pair of true leaves can be as long as 30cm from the ground, which can easily cause the seedlings to fall down; the other is that the plant has a short pod-setting period and low yield. According to relevant data, the yield of dwarf cowpea is 40% lower than that of cowpea cultivated on a rack. Because the above-mentioned physiological defects are inherent, it is difficult ...

AI Technical Summary

Problems solved by technology

But it has two major physiological defects: one is that the seedlings are particularly slender, and the first pair of true leaves can be as long as 30cm from the ground, which can easily cause the seedlings to fall; the other is that the plant has a short pod formation period and low yield

Due to the inherent physiological defects mentioned above, it is difficult to overcome through conventional cultivation techniques, which greatly affects the enthusiasm of vegetable farmers to plant dwarf cowpea