Use method of sweet potato vigorous growth controlling agent

Abstract

The invention discloses a use method of a sweet potato vigorous growth controlling agent. vigorous growth is controlled for 3-4 times in a growing period of sweet potatoes, and the vigorous growth control time and doses are as follows: first vigorous growth control: in a branching and fruiting period, when 50% of sweet potato seedlings in a sweet potato field grow to the standard, carrying out foliar spraying; second vigorous growth control: sweet potato seedling vines are kept under ridges after the first vigorous growth control, the sweet potato seeding vines between two ridges are about tocross, the seedlings are about 50-60 long, and when the sweet potato seedling vines cover 90% of the sweet potato field or above but not cover the whole sweet potato field, foliar spraying is carriedout; and third vigorous growth control: spraying is performed 15 days after the second vigorous growth control or longer, and foliar spraying is carried out according to growth vigor in the field. Theuse method guides scientific use of the sweet potato vigorous growth controlling agent in a sweet potato planting process, so that vine internodes of sweet potatoes are obviously shortened, the vinesare thickened, the lignifications degree is high, leaves are dark green and thickened, excessive growth of vines is reduced, nutrient waste is reduced, foliar photosynthetic products are transferredto sweet potato tubers quickly, the sweet potato setting rate is increased, the quality is improved, and the yield is increased.

Description

technical field [0001] The invention relates to a method for using a plant growth regulator, in particular to a method for using a sweet potato bloom control agent. Background technique [0002] Sweet potato belongs to the family Convolvulaceae, and the genus Dioscorea is a twining herbaceous vine. The harvested part is underground tuber. In comparison, sweet potatoes need more rational chemical control. [0003] The Chinese patent with the publication number CN106576805A disclosed on April 26, 2017 a sweet potato control and growth regulator, which is made of the following raw materials: 12-18 parts of prohexadione calcium, 20-30 parts of walnut green skin residue, palm oil 15-20 parts of slag, 10-15 parts of cottonseed husk chaff, 2-5 parts of sawdust, 5-8 parts of rice bran, 0.05-0.1 part of mixed bacterial agent, 0.2-0.3 part of mixed enzyme, 50-70 parts of deionized water; The sweet potato flourishing control agent provided by the present invention, on the basis of be...

AI Technical Summary

Problems solved by technology

If the ingredients of these products are under control, they will not be able to be controlled; if they are too high, it will lead to reduced yield, deformed potato pieces, reduced commodity rate and no commercial value, and will cause serious residues to the next crops.

As a result, a lot of manpower and material resources will be wasted in vain, and the cost will be increased and the due benefits will not be obtained.