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Method for planting corn in red-soil upland by water and fertilizer integration

A planting method and corn technology, applied in fertilization methods, botany equipment and methods, nitrogen fertilizer, etc., can solve the problems of low fertilizer utilization rate and large nitrogen fertilizer loss, so as to improve utilization capacity, promote seedling uniformity, and promote planting Effect

Inactive Publication Date: 2017-10-03
JIANGXI INST OF REO SOIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corn is a crop that needs a lot of water. The traditional bare land cultivation mode mostly adopts flood irrigation, the utilization rate of chemical fertilizer is low, and the loss of nitrogen fertilizer is huge through volatilization, leaching and runoff.

Method used

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  • Method for planting corn in red-soil upland by water and fertilizer integration
  • Method for planting corn in red-soil upland by water and fertilizer integration
  • Method for planting corn in red-soil upland by water and fertilizer integration

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1. Engineering design, construction and equipment optimization or creation.

[0065] The test site is the terraced red soil dry land of the Red Soil Research Institute of Jiangxi Province. Combining with the characteristics of the test site's water source and rainfall, the engineering design and construction are based on the water storage tank (for water and fertilizer integration) + pipeline booster pump (to increase pipeline pressure) + transmission The main water pipeline (fixed buried underground) + drip irrigation and fertilization system (removable) is the test equipment and carrier, and a set of simplified water and fertilizer integration equipment is preferred.

[0066] Second, timely sowing.

[0067] Double-season corn is divided into spring corn and autumn corn. The spring corn is sown from March 20th to April 20th, and the autumn corn is sown from July 15th to August 10th.

[0068] 3. Site preparation

[0069] The prerequisite for high-yield cultivation of...

Embodiment 2

[0085] One to three, with embodiment 1.

[0086] 4. Selection of fine varieties

[0087] Guinuo 519 was selected as a corn variety (bred by the Maize Research Institute of Guangxi Academy of Agricultural Sciences); the plant height is 187 cm, the ear height is 81 cm, the greenness is 87.1%, the double ear rate is 4.6%, the empty stem rate is 1.0%, and the tiller rate is 0.6 %, lodging rate 1.7%, reversion rate 0.1%, field record 0.9 for large leaf spot, 1.0 for small leaf spot, 6.4% for sheath blight, 0.2% for stem rot, 1.6 for rust, from emergence to fresh ear harvest The average 87 days in spring and 70 days in autumn, the ear length is 18.2 cm, the ear thickness is 4.5 cm, the bald tip is 2.3 cm long, the ear is tube-shaped, and the grain is white.

[0088] Five, scientific formula fertilization

[0089] The total amount of conventional fertilization is set according to the amount of fertilizer required for high-quality and high-yield fresh corn in red soil dry land, whic...

Embodiment 3

[0101] One to three, with embodiment 1.

[0102] 4. Selection of fine varieties

[0103] The corn variety is Huyunuo 2 (Crop Selected by Shanghai Academy of Agricultural Sciences); the plant height is 197-204 cm, the ear height is 73 cm, and the total number of leaves is about 17. The ear length is 18.2 cm, the ear diameter is 4.0-4.5 cm, the number of ear rows is about 14, the filaments are red, the ear is cone-shaped, the cob is white, and the grain is white.

[0104] Five, scientific formula fertilization

[0105] The total amount of conventional fertilization is set according to the amount of fertilizer required for high-quality and high-yield fresh corn in red soil dry land, which is nitrogen fertilizer (N) 15.0kg / mu, phosphorus fertilizer (P 2 o 5 )6.0kg / mu, potassium fertilizer (K 2 O) 12.0kg / mu.

[0106] Among them, base fertilizer: 40% nitrogen fertilizer, 100% phosphorus fertilizer, 60% potassium fertilizer;

[0107] Seedling fertilizer (5-7 days after the seed...

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Abstract

The invention relates to the technical field of agricultural production, in particular to a method for planting corn in red-soil upland by water and fertilizer integration; the method comprises: applying base fertilizer, seedling fertilizer, jointing fertilizer and earing fertilizer to each of corn seeding stage, seedling stage, jointing stage and tasseling stage by means of water-fertilizer integration; total fertilizer for application includes 14-16 kg of nitrogen fertilizer by N per mu, 5-7 kg of phosphorus fertilizer by P2O5 per mu, and 11-13 kg of potassium fertilizer by K2O per mu. The method has the advantages that water loss and nutrition leaching loss can be decreased, conversion and absorption of fertilizer can be promoted, fertilizer utilization rate can be increased, water utilization can also be adjusted, and water utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a water-fertilizer integrated planting method for dryland corn in red soil. Background technique [0002] Red soil dryland is an important agricultural soil resource in southern my country, and the deep development and utilization of red soil dryland resources has always been an important direction and research focus for the great development of agriculture in southern China. The red soil dryland is widely distributed and has a large area, with a total area of ​​about 2.112 million km 2 , accounting for 22.7% of the country's land area. There are 350,000-360,000 hm of red soil dry land in Jiangxi 2 , accounting for about 15% of the total arable land in Jiangxi Province. [0003] Under the current situation of water shortage and low fertilizer utilization rate, red soil dryland agriculture urgently needs to change from extensive production with large amount of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00C05G1/00C05C9/00
CPCA01C21/005C05B7/00C05C9/00C05D1/02
Inventor 吴艳
Owner JIANGXI INST OF REO SOIL
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