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Cold-field corn cultivation method with 1000kg per mu

A cultivation method and 1000-kilogram technology, applied in the field of super-high-yield corn cultivation, can solve problems such as low yield, achieve large yield potential, improve light and ventilation conditions, and enhance the effects of photosynthesis

Inactive Publication Date: 2012-09-12
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problem of low yield of the existing corn cultivation methods in Northeast China, and provides a cultivation method of 1,000 kilograms per mu of corn in cold regions

Method used

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  • Cold-field corn cultivation method with 1000kg per mu

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specific Embodiment approach 1

[0018] Specific embodiment one: the cultivation method of a kind of cold area corn yield thousand kilograms per mu of the present embodiment is carried out according to the following steps:

[0019] 1. Before freezing in autumn, spread the decomposed organic fertilizer evenly on the field at a rate of 15 tons per hectare, and then carry out deep loosening and soil preparation. The thickness of the loose soil layer is 25-30cm. is 130 cm, and the width of the ridge table is 90 cm;

[0020] 2. In the spring of the second year, when the average low temperature of 10 centimeters of the cultivated layer has passed 5-6°C, apply 150 kilograms of diammonium phosphate, 90 kilograms of potassium sulfate, 75 kilograms of urea and 30 kilograms of zinc sulfate per hectare. Mix diammonium phosphate, potassium sulfate, urea and zinc sulfate evenly, and apply them as base fertilizer at the same time when corn seeds are sown in double rows. 10-12 cm; corn seeds are sown into the ridge table at...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment is different from Embodiment 1 in that the thickness of the loose soil layer in Step 1 is 26-28 cm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step two, the base fertilizer is applied to 12 to 18 centimeters on both sides of the center line on the ridge table, and the depth of application is 10.5 to 11.5 centimeters. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a cold-field corn cultivation method with 1000kg per mu, belongs to the technical field of crop cultivation and solves the technical problem that existing corn cultivation methods in northeast China are low in yield. The methods includes the steps of firstly, before freeze-up in autumn, scattering organic fertilizer, subsoiling to prepare a land, and ridging the land; and secondly, performing double-row sowing of corn seeds and applying base fertilizer the next year in spring, setting a drip tape along the center line of the surface of each ridge, covering the drip tapes with mulch, and performing field water management and chemical control management to complete cold-field cultivation of corn with 1000kg per mu. Double-row 'through' cultivation on a large ridge is performed by the method, so that light and ventilation are improved. Inter-row mulching for the large ridges is adopted, so that effective accumulated temperature is increased. Proper moisture conditions obtained by drip irrigation under mulch are created. Ideal corn plant types are created under adjustment of chemical control technique, and an ultrahigh grown mode is created. By the cold-field corn cultivation method with 1000kg per mu, the cold-field corn yield per unit is increased by 50-100% as compared with that by the traditional methods. The cold-field corn cultivation method with 1000kg per mu is applicable to cold-field corn cultivation.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and more specifically relates to a super-high-yield cultivation method for corn. Background technique [0002] my country has a large population, relatively poor agricultural land and water resources, the national economy has been developing rapidly, and the contradiction between man and land is very prominent. Moreover, in recent years, the area of ​​cultivated land has gradually decreased. Therefore, to do everything possible to increase grain yield is the only primary way to ensure food security in our country. Corn is one of the main food crops in the world and also in my country, but the main corn producing areas in my country are mainly distributed in the north, and the Sanjiang-Songnen Plain in the northeast is the most important corn production base in my country. -4 accumulated temperature zone, namely 46°01′-48°30′ north latitude and 123°15′-133°30′ east longitude. The area i...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00
Inventor 王建国张兴义李兆林
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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