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Method for increasing oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of method

A technology for cabbage type rape and rapeseed, which is applied in the directions of application, fertilization method, botanical equipment and method, etc., can solve the problems of difficulty in mechanical harvesting, decreased grain yield and quality, and low oil yield, etc., and is beneficial to mechanization. The effect of production, improving economic efficiency and mechanized harvesting efficiency, enhancing motivation

Active Publication Date: 2015-12-16
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly aims at problems such as the reduction of grain oil content and severe lodging of Brassica napus when nitrogen fertilizer is applied too much, which further leads to the decline of grain yield and quality, low oil yield and difficulty in mechanical harvesting operations, and provides a simultaneous use of liquid silicon fertilizer. Method and application of improving oil content and lodging resistance of Brassica napus seeds

Method used

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  • Method for increasing oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of method
  • Method for increasing oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of method
  • Method for increasing oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of method

Examples

Experimental program
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Effect test

Embodiment 1

[0018] From 2013 to 2014, a split-plot test of two Brassica napus varieties sprayed with liquid silicon fertilizer was carried out in the test field of Huazhong Agricultural University in Wuhan City, Hubei Province, China. The specific test steps are as follows:

[0019] 1) Selection and planting of rapeseed varieties: the previous crop is rice, the plot is 10m long and 2m wide, and 6 rows are sown at equal row spacing. Two Brassica napus varieties with obvious differences in growth period, grain quality, yield and lodging resistance are selected. The hybrid varieties Huayouza 62 and Fengyou 520 were used as test materials, which were broadcast live on September 22;

[0020] 2) Rapeseed field management: seedling density 45×10 4 strain hm -2 , the amount of pure nitrogen is 360kg·hm -2 , with urea as the nitrogen source, the ratio of base fertilizer: seedling fertilizer: shoot fertilizer is 5:2:3. Phosphate fertilizer (P 2 o 5 ) and potash (K 2 O) The dosage is 150kg·hm ...

Embodiment 2

[0036] From 2014 to 2015, a split-plot test of Brassica napus sprayed with liquid silicon fertilizer was carried out in the experimental field of Huazhong Agricultural University in Wuhan City, Hubei Province, China, and the seeds were sown on September 26, 2014. The selection of Brassica napus varieties, planting methods, field Management measures, the spraying treatment of silicon fertilizer and the measuring method of each index are all carried out according to the step of embodiment 1.

[0037] The measurement results are described in Table 2. The test results showed that with the delay of the spraying period, the oil content of the grain increased, the yield increased, and the field lodging angle decreased. With the increase of monosilicic acid concentration, at the T1 (seedling stage) stage, the oil content of the seeds of the two varieties decreased, but both were greater than that of the control without spraying, the yield increased, and the field lodging angle decreas...

Embodiment 3

[0042] From 2014 to 2015, a paclobutrazol spraying test was carried out on two Brassica napus varieties in the experimental field of Huazhong Agricultural University in Wuhan City, Hubei Province, China, and the seeds were sown on September 26, 2014. The specific test steps are as follows:

[0043] 1) selection and planting of rapeseed varieties: selection of varieties and planting are the same as in Example 1;

[0044] 2) field management of rapeseed: the field management after each variety is planted is the same as embodiment 1;

[0045] 3) Preparation of chemical reagents: prepare monosilicic acid with a concentration of P1 (0.086g L -1 ), P2 (0.093g L -1 ) and P3 (0.101g·L -1 ) silicon fertilizer aqueous solution with monosilicic acid content (the amount of solution in each plot is 15000L hm -2 ) uniformly mixed for subsequent use;

[0046] 4) Spraying period: In the early stage of budding of each rapeseed variety, the concentration of monosilicic acid is sprayed at P1...

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Abstract

The invention belongs to the technical field of rape cultivation, and particularly relates to a method for increasing the oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of the method. According to the method, in the early stage of the stem elongation period of Brassica napus rapes, the bolting height is 8-12 cm, a liquid silicon fertilizer aqueous solution with the monosilicic acid content being 0.086-0.101g.L<-1> is used between December 20th to January 20th next year in Gregorian calendar time, and the oil content of the Brassica napus rapeseeds is increased and lodging resistance is improved simultaneously. The method is applicable to Brassica napus rape varieties in rape production areas in the Yangtze river basin. By means of the method, the oil content is increased and lodging resistance is improved simultaneously under the condition that the yield of the Brassica napus rapes is higher through high-nitrogen culture, so that quality of the rapes is improved easily, application and popularization of the mechanical harvesting technology are facilitated, and economic benefits of rape production are improved.

Description

technical field [0001] The invention belongs to the technical field of rapeseed cultivation, and in particular relates to a method for simultaneously improving the oil content and lodging resistance of Brassica napus seeds and an application thereof. Background technique [0002] Rapeseed is one of the main oil crops in my country. Rapeseed oil contains low content of unfavorable components such as saturated fatty acids and cholesterol, and contains unique natural antioxidant components, namely rapeseed polyphenols. Long-term consumption can reduce cholesterol and prevent aging. . [0003] Increasing the application of nitrogen fertilizer can significantly increase the yield, but at present, due to the pure pursuit of yield, farmers often lead to excessive application of nitrogen fertilizer, which reduces the oil content of rapeseed and affects the oil yield. At the same time, if nitrogen fertilizer is applied too much, the plants tend to grow excessively, the ventilation an...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00
CPCA01C21/005
Inventor 孙盈盈蒯婕周广生
Owner HUAZHONG AGRI UNIV
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