36results about How to "Loose and breathable" patented technology

The invention relates to a macadamia nut seedling cultivation substrate prepared through macadamia nut waste, and belongs to the technical field of agricultural production. The seedling cultivation substrate comprises, by weight, 10-20 parts of fermented macadamia nut hulls, 20-35 parts of carbonized macadamia nut hulls, 15-25 parts of macadamia nut branch and leaf powder, 30-40 parts of peat soil and 25-30 parts of yellow soil. The fermented macadamia nut hulls, the carbonized macadamia nut hulls and the macadamia nut branch and leaf powder included in the formula of the macadamia nut seedling cultivation substrate are waste formed after macadamia nut primary processing and orchard pruning, and sources of the peat soil and the yellow soil are wide and are easy to obtain. The method for preparing the seedling cultivation substrate is simple, physical and chemical properties are stable, the water-retaining property is good, seedlings grow strongly, and seedling cultivation cost of macadamia nuts is reduced. Besides, the macadamia nut waste is reasonably and effectively used, and good economic benefits and ecological benefits are achieved.

The invention discloses a special container seedling growing substrate for leaf vegetables. The special container seedling growing substrate comprises, by volume, 20-40% of peat, 5-10% of expanded perlite, 15-20% of vermiculite, 5-10% of stove ash residues, 5-15% of sawdust, 22-40% of tea residues and earthworm casts, 0.5-2% of long-acting compound slow-release fertilizers, 0.5-2% of water retaining agents and 20-40% of waste mushroom bran. The special container seedling growing substrate has the advantages that raw materials for the special container seedling growing substrate can come from wide sources and are easily available, and accordingly the special container seedling growing substrate is low in production cost; the waste mushroom bran is organic agricultural waste, is high in quantity and can be used for producing soilless culture substrates, accordingly, environmental pollution can be reduced, waste can be turned into wealth, harm can be turned into benefits, and the special container seedling growing substrate can be widely used for growing seedlings of leaf vegetable crops such as brassica chinensis, purple brassica chinensis and different types of lettuces.

The invention discloses a culture medium for an itaconic acid production strain and a culturing method thereof. The strain culture medium comprises bran, rice husks and a malt wort culture medium, wherein the bran and the rice husks are in the mass ratio of 1:0.03-1:0.15; the adding amount of the malt wort culture medium is 0.02 to 0.1 percent of a dry culture medium (the total mass of the bran and the rice husks); the water content of the culture is 60 to 80 percent. The culture medium provided by the invention is good in loosening property and little in accumulated water; meanwhile, during a growth process of hyphae, the breathability is good, which is beneficial to dissipation of heat and water in a culturing process; the spore producing capacity of mouldy bran is promoted; the quality and the quantity of the mouldy bran are improved; the stability of the strain is ensured. The spore number of the strain which is cultured by adopting the culture medium disclosed by the invention can reach 1.5*10<11> in every gram of the dry mouldy bran; when the strain is used for inoculating and fermenting to produce the itaconic acid, the initial glucose concentration of a fermenting culture liquid is 14.0 to 15.0 percent, and the acid yield can reach 9.76g / 100ml or above, the fermenting period is within 48 hours, the residual glucose is 0.35 percent or below, and the product conversion rate can reach 67.30 percent or above.

The invention discloses a nutrient carrier material with functions of looseness, air permeability, water retention and fertilizer retention, and its formula is a ternary compound fertilizer of quartz sand, perlite and attapulgite. The application method of the invention is a new type of fertilizer supply technology for the full plow layer of horticultural trees. The invention can not only effectively improve fertilizer utilization rate, reduce labor intensity, reduce environmental pollution and increase labor benefit, but also is expected to improve fruit yield and quality, and has important practical significance for promoting farmers' income increase, agricultural efficiency enhancement, rural development and urban greening.

The invention provides a method for using cuttage for seedling raising of colored-leaf plants and belongs to the technical field of seedling raising. The method includes: preparing a seedling raising bed, cutting processing, on-site cuttage, controlling temperature, humidity and light of the cutting after cuttage, replenishing nutrients and sterilizing. By the method, all links in the cuttage are optimized and guaranteed according to corresponding methods, the seedlings grow roots fast and emerge early, and cuttage survival rate of the colored-leaf plants can reach more than 95%. In addition, the method is simple to operate, low in cost and easy to popularize, and guarantee is provided for wide application of colored-leaf plants in urban gardening.

The invention discloses a substrate for soilless seedling cultivation of plum vegetables. The substrate contains leaf dregs of plum vegetables, which are decomposed and used as organic fertilizers. Sterilize and provide nutrients to obtain a loose, breathable, water- and fertilizer-retaining substrate, and compared with traditional soil seedlings for plum vegetables, it has the advantages of less pests and diseases, low cost, high survival rate, strong disease resistance, and high yield; Utilizing the plum vegetable leaf dregs and tea dregs can also realize waste utilization, reduce costs, and have strong economic efficiency.