Special culture substrate for rapes

Abstract

The invention discloses a special culture substrate for rapes. The special culture substrate comprises a germination substrate, a growth substrate, a flowering period substrate and a pod bearing period substrate, wherein the growth substrate is prepared from the following components in parts by weight: 3-16 parts of earthworm cast, 40-55 parts of biogas residues, 5-16 parts of vermiculite, 25-30 parts of biogas slurry, 5-10 parts of rapeseed cakes, 5-15 parts of an auxiliary fertilizer, 4-8 parts of sugar alcohol and 4-8 parts of chito-oligosaccharide; and the auxiliary fertilizer is prepared from 1.5-5 parts of soybean peptide, 1-1.5 parts of montmorillonite and 0.5-1.0 part of compound microorganisms. The culture substrate disclosed by the invention has strong pertinence, the fertilizer is pertinently applied at each growth period, and the utilization rate of the fertilizer is high; the germination times of the rapes can be accelerated, the germination rate is improved, and the stress resistance of the rapes is improved; meanwhile, a germination period and a period from germination to flowering can also be shortened, and a flowering period and a fruit bearing period are prolonged; and the flowering period substrate and the pod bearing period substrate are applied at the flowering period and the pod bearing period respectively, so that the pollination success rate and the pod bearing rate can be improved, the yield is improved, the quality of the rapes is improved, and the plumpness of rapeseeds is improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural cultivation and relates to a special cultivation substrate for rapeseed. Background technique [0002] Rapeseed is a field oil crop whose main consumption target is oil. At present, the oleic acid content of canola oil is relatively high, reaching 60-65%, second only to olive oil, and it is a high-quality edible vegetable oil that is very beneficial to human health. Rapeseed meal, a by-product of rapeseed pressing, accounts for about 50-60% of the weight of the seeds. Rapeseed contains about 25% protein, and rapeseed meal after oil removal contains about 35-40% protein. It is a good protein feed. Therefore, the economic value of rapeseed is very high, and it is worth planting on a large scale. [0003] Over the years, people have been trying to cultivate new varieties of rapeseed, innovate planting methods (such as transplanting or direct seeding, no-tillage transplanting or no-tillage di...

AI Technical Summary

Problems solved by technology

[0003] Over the years, people have been trying to cultivate new varieties of rapeseed, innovate planting methods (such as transplanting or direct seeding, no-tillage transplanting or no-tillage direct seeding, etc.), and improve field management to increase the yield of rapeseed, although good results have been achieved. effect, but the increase in the yield per unit area of ​​rapeseed is not obvious. At present, the average harvested rapeseed per 667m2 is generally about 250 kg

After that, I learned about various planting methods, but the effect of increasing yield was not obvious, and growers tended to apply more fertilizer. In rapeseed planting, the cost of fertilization accounted for about 60% of the total direct investment in rapeseed planting. The high cost of fertilizer input has become a problem. An Important Factor Restricting Farmers' Rapeseed Income Increase

The research also shows that the fertilizer utilization rate of rapeseed planting in my country is low, and the average utilization rate of fertilizer used by farmers is less than 30%. This is the main factor causing excessive fertilization and high fertilizer input costs. cause environmental risk