Special medium for blanket seedling cultivation of rape

Abstract

The invention discloses a special medium for blanket seedling cultivation of rape. The medium is prepared from, by volume, 20-30 parts of composted fermented materials of mushroom residues, vinegar residues and cassava residues, 10-20 parts of coco coir, 5-10 parts of turf, 5-10 parts of vermiculite, 5-10 parts of perlite, 3-5 parts of carbon bran or plant ash, wherein 0.3-0.5wt% of compound fertilizers and 0.1-0.3wt% of synergists are added. The special medium with certain fibers is high in nutrient content, stable in structure, great in blanketing effect and quite suitable for blanket rape seedling cultivation. Compared with seedbed soil seedling cultivation, the special medium has advantages that the seed emergence rate can be increased by about 10%, the after-emergence 7-day seedling survival rate is increased by about 15%, seedling height uniformity is improved by 15-20%, and the average seedling uniformity difference of 10 trays is reduced by 15-20%.

Description

technical field [0001] The invention relates to a rapeseed seedling raising substrate, in particular to a special mat-shaped seedling raising substrate for rapeseed, which belongs to the field of agricultural technology. Background technique [0002] Rapeseed is one of the main crop varieties planted in winter in rural areas of our country. Traditional rapeseed cultivation requires manual seedling cultivation and transplanting, which is labor-intensive and time-consuming, and is not conducive to mechanized operation. It has become a bottleneck restricting the development of rapeseed production in my country. The mechanical transplanting technology of blanket-shaped rapeseed seedlings jointly developed by Yangzhou University and Nanjing Agricultural Mechanization Research Institute of the Ministry of Agriculture uses plastic plugs to cultivate blanket-shaped rapeseed seedlings, and then quickly transplants them with a rice transplanter, which solves the problem of artificial ...

AI Technical Summary

Problems solved by technology

However, in the actual seedling raising process of rapeseed blanket seedlings, the rapeseed seedling bed soil has a large soil specificity, and the grown rapeseed sheet has problems such as heavy weight, easy looseness, difficulty in blanketing, and difficult transportation; , the nutrients contained are also different, and need to be adapted to local conditions, which is difficult to control; third, the length and thickness of plant fibers are high, and the use of crop straw to produce plant fibers is difficult in actual operation, difficult to grasp the operation process, and it is not easy to standardize on a large scale Production

[0004] For example, using ordinary rice seedling-raising substrate and vegetable seedling-raising substrate to grow rapeseed blanket seedlings, it is difficult to cultivate high-quality rapeseed blanket seedlings because the nutritional ingredients, physical and chemical properties and physical structure cannot meet the requirements of rapeseed seedlings.