Selenium-rich watermelon seedling substrate and preparation method thereof

Abstract

The invention discloses a selenium-rich watermelon seedling substrate. The substrate is prepared from, by weight, 40-50 parts of vermicompost, 10-15 parts of vermiculite, 8-10 parts of humus soil, 10-15 parts of molasses fermentation liquor, 3-5 parts of sesames, 3-5 parts of tangerine pith, 3-5 parts of fermentative strains, 20-30 parts of soft sediments with water content of 90%, 15-20 parts of atriplex patens, 3-5 parts of duckweed, 1-2 parts of fosamine ammonium and 10-20 parts of inorganic fertilizer, wherein the fermentative strains comprise microzyme, lactic acid bacteria, actinomycete and bacillus subtilis with the mass ratio of microzyme to lactic acid bacteria to actinomycete to bacillus subtilis being (3-6):(4-6): (2-3):1. The invention further discloses a preparation method of the selenium-rich watermelon seedling substrate. The selenium-rich watermelon seedling substrate is comprehensive in nutritional ingredient and balanced and harmonious in proportion; sufficient and coordinated nutrition can be supplied to watermelons in the whole growth period, and the growth of the watermelons is effectively promoted; the good quality of the watermelons is ensured, the selenium-rich watermelon seedling substrate can also be efficient, and the yield is efficiently improved.

Description

technical field [0001] The invention relates to the technical field of agricultural cultivation. More specifically, the invention relates to a selenium-enriched watermelon seedling raising substrate and a preparation method thereof. Background technique [0002] Watermelon is a kind of fruit that consumers like very much. It is rich in nutrition, good in flavor and hygienic quality. With the improvement of people's living standards and the enhancement of food safety awareness, it has become more and more popular among consumers. However, traditional watermelon planting methods limit the growth of watermelons. Many planting methods have a low germination rate of watermelons, often appear weak seedlings, and the yield of watermelons is not high. The selenium content of watermelons produced in ordinary areas is generally lower than 1 μg / kg, and people’s selenium intake from them is very limited, so fortifying them with selenium nutrition is a better way to enhance the level o...

AI Technical Summary

Problems solved by technology

Traditional watermelon seedlings are raised in soil-based nutrient pots, but with the development of seedling technology, light substrate plug seedling technology has been widely used. The light substrate raw materials used are mainly peat, edible fungus chaff, vegetable plant residues, and crop straw. Rods, livestock and poultry manure, etc. are made by adding perlite, vermiculite, and water-retaining agent in a certain proportion after they are decomposed, but they are prone to hardening, poor permeability, poor nutrient balance, and small buffer performance. Water, fertilizer, air, and heat cannot fully meet the needs of watermelon germination, emergence, and growth

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