Mountainous rape super-sparse cultivation method

Abstract

The invention discloses a mountainous rape super-sparse cultivation method. The method includes the steps that firstly, seedling raising is conducted in advance in a concentrated mode, wherein seedbed land is arranged in the mid-to-late August every year, sowing and seedling raising are conducted, and 0.8 g of seeds are applied in each cubic meter of land; secondly, seedbed management is conducted, wherein thinning is carried out at proper time, weed prevention and disease and pest management are paid attention to, and paclobutrazol is applied once in the three-leaf period; thirdly, land treatment is conducted before transplanting, wherein the mid September, land weeding and soil preparation are conducted before transplanting; fourthly, transplanting is conducted, wherein transplanting is conducted in the five-leaf period according to the row spacing of 1.2-1.5 m and the pit spacing of 0.6-0.8 m, and it is ensured that 500-1000 plants are transplanted in each mu of land; during transplanting, composite fertilizer and boron fertilizer are applied beside each pit of rape seedlings; fifthly, field management is conducted after transplanting. The method has the advantages that the quantity of seeds in each mu of land is reduced, and seed cost is reduced; the number of the transplanted plants in each mu of land is greatly reduced, and cost for transplanting is reduced; the density of rape in each mu of land is greatly reduced, the disease occurrence rate is low, and pesticides and management cost are reduced; sclerotinia sclerotiorum is reduced, the yield is increased, and the oil content is increased.

Description

technical field [0001] The invention belongs to a method for cultivating rape, in particular to a method for super-rare cultivating rape in mountainous areas. Background technique [0002] Rapeseed ultra-thin and high-yield cultivation technology was proposed in 1989-1995 by the Department of Biology of Anhui Normal University and the national labor model Yang Liangjin and others to improve the planting efficiency of rapeseed: at 37,500-67,500 plants / hm 2 Under the sparse planting density, build a strong small group, increase the number of branches and siliques of rapeseed on the basis of increasing agricultural investment, so as to form a technical system for high-yielding groups. And from 1999 to 2002, the theory of ultra-thin planting was perfected and sublimated, which solved the difficulties of traditional ultra-high-density labor and labor, and formed a plant with labor-saving, plant-saving, fertilizer-saving, drug-saving, cost-saving and high-efficiency. Lightly simp...

AI Technical Summary

Problems solved by technology

[0004] The problems in practice mainly include: there are not many varieties suitable for ultra-rare cultivation methods; cultivation measures such as stubble, seeding rate, tillage method and tillage depth, and plant growth regulators have a very important impact on the yield of rapeseed; temperature, light, etc. Ecological factors such as water and water also have a very important impact on the yield of rapeseed. It is necessary to coordinate and deal with these factors in order to achieve high yield.