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Method for improving reproductive capacity of Chloris virgata by applying nitrogenous fertilizer

A technology of saxifrage and nitrogen fertilizer is applied in the directions of fertilization methods, fertilization devices, botanical equipment and methods, etc., which can solve the problems of low seed weight per ear, low number of reproductive tillers, and decreased seed vigor, etc., so as to improve the regional ecological environment, The effect of increasing vegetation coverage and easy operation

Inactive Publication Date: 2016-05-25
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The present invention aims to solve the technical problems of the existing saline-alkali land that the number of reproductive tillers of Sansevieria seeds is small, the weight of a single ear seed is low and the seed vigor decreases, thereby providing a method for improving the reproductive capacity of Sansevieria sativa by applying nitrogen fertilizer

Method used

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specific Embodiment approach 1

[0018] Specific embodiment one: a kind of method of adopting nitrogenous fertilization of present embodiment to improve the reproductive ability of Sansevieria is carried out according to the following steps:

[0019] 1. Selection of Sansevieria community: In the middle and late May, select a uniform and single Sansevieria community;

[0020] 2. Fertilization: Within one month after the Sansevieria community selected in step 1 turns green, combined with the rainfall during this period, nitrogen fertilizer is applied once before the rainfall, and the fertilization amount is 20-30kg / ha of pure nitrogen;

[0021] 3. Seed harvest: Harvest Sansevieria seeds from mid-August to early September, that is, harvest the seeds 2 weeks after the heading of Sansevieria, at this time the seeds are mature and have not fallen off. After harvesting, the Sansevieria seeds are dried in time, selected and bagged. That is to complete the method of adopting nitrogen fertilization to improve the repro...

specific Embodiment approach 2

[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the Sansevieria community in Step 1 is selected from the degraded grassland of Songnen Plain. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the nitrogen fertilizer described in step 2 is urea with a nitrogen content of 46%. Others are the same as in the first or second embodiment.

[0026] Sansevieria grasslands are mainly distributed in soils containing NaCl and Na 2 SO 4 such as neutral salts, and Na 2 CO 3 and NaHCO 3 In saline-alkali areas with high alkaline salt content, in order to ensure that the type of fertilization does not increase the pH value of the saline-alkali land, it is advisable to use urea with a nitrogen content of 46% as a physiologically neutral fertilizer, and avoid using physiologically alkaline fertilizers.

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Abstract

The invention discloses a method for improving the reproductive capacity of Chloris virgata by applying a nitrogenous fertilizer, relating to a method for improving the reproductive capacity of Chloris virgata seeds and aiming to solve the technical problems of low quantity of reproduction tillers of the Chloris virgata seeds, low weight of seeds in one spike and reduced vigor of seeds in the existing saline-alkali soil. The method disclosed by the invention comprises the following steps: 1, selection of Chloris virgata communities: selecting single Chloris virgata communities uniform in growth; 2, fertilization: applying the nitrogenous fertilizer once before rainfall, within one month after green returning of the Chloris virgata communities in combination with the rainfall during this period; 3, seed harvesting. According to the method disclosed by the invention, the quantity of the reproduction tillers of the Chloris virgata seeds is improved by over 93%, the weight of the seeds in one spike is increased by 112%, the yield of the seeds is increased by 210%, and therefore favorable economic, social and ecological benefits are obtained; meanwhile, the method has the characteristics that the soil fertility is improved, the vegetation coverage is increased, the grassland degeneration is restrained, and the regional ecological environment is improved. The method is applied to the field of production of pasture seeds.

Description

technical field [0001] The invention relates to a method for improving the reproductive capacity of Sansevieria seeds. Background technique [0002] Chtorisvirgata (Chtorisvirgata), also known as mallet grass and big ass grass, is an annual herb of the Poaceae family and is widely distributed in tropical and subtropical regions. Sansevieria has the characteristics of rapid growth, strong tillering ability, high seed yield, tolerance to barrenness, and salt-alkali tolerance. It is widely distributed in degraded grasslands and saline-alkali meadows, and can still grow well on soils with a pH of 9.0-9.7, often It can form a single-dominant Sansevieria community on alkaline spots with harsh environments. It is one of the pioneer plants for improving saline-alkali degraded grasslands, and it is also one of the important sources of humus and organic matter in alkaline spot soils. It is the first choice for improving saline-alkali grasslands. Grass species; and this species has hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00
CPCA01C21/005A01G22/00
Inventor 王颖薛洪海王昌福
Owner JILIN JIANZHU UNIVERSITY
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