Screening method of multiple cropping corn fertilizing mode

A screening method and corn technology, applied in fertilization methods, fertilization devices, applications, etc., can solve the problems of low organic fertilizer application, unreasonable ratio of nitrogen and potassium fertilizers, insufficient phosphorus and potassium fertilizers, etc., to increase yield and reduce stem The incidence of rot and the effect of reducing the lodging rate

Inactive Publication Date: 2017-06-20
山西师范大学
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Problems solved by technology

[0004] To sum up, the problems existing in the prior art are: in the existing fertilization process, there is a lack of consideration of regionality, seasonality, and stage of corn growth, and the level of fertilization is not good in terms of the demand for nutrients from corn growth; On the one hand, fertilization has been overly dependent on chemical f

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  • Screening method of multiple cropping corn fertilizing mode
  • Screening method of multiple cropping corn fertilizing mode

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[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0024] The embodiment of the present invention provides a method for screening fertilization methods for multiple seeding corn. The method for selecting fertilizer methods for multiple seeding corn is: combined fertilization at multiple growth stages of corn in the pre-planting period, jointing period, large bell-mouth period, and tasseling period. Analyze the biological characteristics of corn leaf symptoms, plant height, ear characteristics, and 100-kernel weight to screen out localized fertilization methods.

[0025] The selected localized fertilization method preferably applies 40Kg compound fertilizer per mu of land ...

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Abstract

The invention belongs to the technical field of agricultural fertilizing, and discloses a screening method of a multiple cropping corn fertilizing mode. The method comprises the following steps: applying fertilizer respectively at the several growth stages of corn such as the early stage of sowing, the jointing stage, the flare opening stage and the heading stage, counting the corn biological characters such as the symptoms of the corn leaves, the plant height, the characters of panicle and the hundred-grain weight and thus screening out the local fertilizer applying mode. According to the method, experiments of the corn fertilizer applying modes are carried out continuously in a representative field in three years, three fertilizer applying modes are set, fertilizer is applied respectively at the several growth stages of corn such as the early stage of sowing, the jointing stage, the flare opening stage and the heading stage, the corn biological characters such as the symptoms of the corn leaves, the plant height, the characters of panicle and the hundred-grain weight are counted and thus the local fertilizer applying mode is screened out. A theoretical foundation is laid for scientific fertilization, a typical demonstration is carried out, and thus the continuous high yield of the corn is promoted by gradually popularizing the scientific local fertilizer applying mode.

Description

Technical field [0001] The invention belongs to the technical field of agricultural fertilization, and in particular relates to a method for screening fertilization methods for multiple seeding corn. Background technique [0002] Corn is an important food crop in the world. It is widely planted in more than 120 countries including China, the United States, and Brazil, with a cumulative germplasm area close to 100 million hectares. As an important corn producing country, China is divided into spring sowing corn area in the north, Huanghuaihai summer sowing corn area, southwest mountain corn area, southern hilly corn area, northwest irrigated corn area, and Qinghai-Tibet Plateau corn area according to geographical location. Six districts. Shanxi is located in the Loess Plateau, straddling two corn planting areas. The north central and southeastern areas belong to the northern spring corn area, and the central and southern areas belong to the Huanghuaihai summer corn area. Corn is...

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Application Information

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IPC IPC(8): A01C21/00
CPCA01C21/007
Inventor 陈伟王圣楠崔爱民樊泽璐胡明宁王祎玲郭瑞珍
Owner 山西师范大学
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