Water-retention and fertilizer-conservation organic fertilizer supplying method for promoting early growth, quick tillering and robust growth of tobacco seedlings

Abstract

The invention discloses a water-retention and fertilizer-conservation organic fertilizer supplying method for promoting early growth, quick tillering and robust growth of tobacco seedlings. In the day when tobacco seedlings are transplanted or one day before tobacco seedlings are transplanted, a biological liquid fertilizer, a fish protein organic liquid fertilizer and water are mixed in the volume ratio of 6:(0.2-1):(250-350), and a nutrient solution is obtained for use; dry coco coir and the nutrient solution are mixed at the mass ratio of 1:(5-7), and soaking is conducted for 2-12 hours, and coco coir substrate is obtained for use; before transplanting, the coco coir substrate is embedded in a tobacco pond, and in each pond, the application amount of the dry coco coir is 20-40 g; the tobacco seedlings are planted in the coco coir substrate in the tobacco pond, after transplanting, no water is needed to be sprayed, and a layer of fine dry soil is used for covering the surface layer; topdressing applying, watering, film mulching, seedling pulling-up and pest and disease damage control are conducted according to a conventional young seedling transplanting process. The fertilizer supplying method makes full use of the characteristics, such as loose texture, large porosity, low water content, low volume-weight and high moisture absorbability and moisture retentivity, of the coco coir substrate, the nutrient solution is adopted for supplying fertilizers, and therefore the coco coir substrate can provide sufficient water and fertilizers, can ensure sufficient air gaps and promote early growth, quick tillering and robust growth of the tobacco seedlings.

Description

technical field [0001] The invention belongs to the technical field of tobacco seedling tending, and in particular relates to an organic fertilizer supply method for promoting early growth, rapid growth and robust growth of tobacco seedlings by maintaining water and fertilizer. Background technique [0002] Coconut produces a large amount of coconut bran after processing, which is an active substrate with excellent physical and chemical absorption capacity and strong buffering effect. In many areas, coconut bran is either lost by incineration or is naturally degraded by a large amount of accumulation, which causes great pressure on the environment. Therefore, its harmless and efficient utilization of resources has become a hot spot of people's attention, and the cultivation substrate of coconut bran is also becoming more and more important. Widely used in agricultural and forestry production. The technical background of the invention is mainly reflected in three aspects: ...

AI Technical Summary

Problems solved by technology

The background of this technical invention is mainly reflected in three aspects: (1) In tobacco cultivation, the application of organic fertilizer is the material basis for ensuring high-quality and suitable production of tobacco leaves, but if the method of fertilizer supply is unreasonable, it will not only cause waste of resources, but also lead to nutrient imbalance in the soil , will also cause adverse effects on the quality of tobacco leaves, and hinder the development and improvement of lean production of modern tobacco agriculture; (2) Kunming Tobacco Area is mainly distributed in mountainous areas and semi-mountainous areas, with poor water conservancy conditions and unbalanced soil essential micronutrient elements for plants , the fast-growing group tree period and the prosperous long-term intermittent drought weather are prominent, which is unfavorable to the healthy growth of tobacco plants; (3) With the rise of large-scale agricultural and environmental protection production, microbial organic fertilizers, disease prevention and insect control preparations have been widely promoted and applied , the colonization (survival) environment of these beneficial microorganisms needs a certain humidity requirement, but due to unstable soil moisture, these microbial agents often cannot play their due role