Method for efficiently controlling grain sorghum plant height

A plant height and sorghum technology, applied in the field of high-efficiency control of grain sorghum plant height, can solve the problems of sorghum plant height and inability to apply mechanical harvesting, and achieve the effects of increasing efficiency, reducing labor intensity, and increasing enthusiasm for brewing enterprises

Inactive Publication Date: 2017-05-10
SHANXI ACADEMY OF AGRI SCI SORGHUM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for efficiently controlling the plant height of grain sorghum, which solves the problem in the prior art that the plant height of sorghum is relatively high and cannot be applied to mechanical harvesting

Method used

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  • Method for efficiently controlling grain sorghum plant height
  • Method for efficiently controlling grain sorghum plant height

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for efficiently controlling the plant height of grain sorghum, spraying commercially available ethephon with an original concentration of 40g / 100ml when the sorghum grows to 100cm (meaning that the concentration of ethephon in the growth regulator is 40g / 100ml) , and dilute the volume of ethephon 200 times; the planting density of sorghum is 150000 plants / hm 2 , sorghum was planted with a row spacing of 40 cm, and the others were managed in the field in a conventional manner.

[0019] Planting sorghum in this way, the height of the sorghum plant is less than 150cm when harvested, and the yield is greater than 9000kg / hm 2 , effectively controlling the plant height of sorghum, making it suitable for mechanized harvesting without reducing the yield of sorghum.

Embodiment 2

[0021] A method for efficiently controlling the height of grain sorghum plants, when the sorghum grows to 60cm, spraying the ethephon with an original concentration of 40g / 100ml (referring to the concentration of ethephon in this growth regulator is 40g / 100ml), and The volume of ethephon is diluted 400 times; the planting density of sorghum is 120,000 plants / hm 2 , sorghum was planted with a row spacing of 40 cm, and the others were managed in the field in a conventional manner.

[0022] Planting sorghum in this way, the height of the sorghum plant is less than 160cm when harvested, and the yield is greater than 9500kg / hm 2 , effectively controlling the plant height of sorghum, making it suitable for mechanized harvesting without reducing the yield of sorghum.

Embodiment 3

[0024] A method for efficiently controlling the plant height of grain sorghum, when the sorghum grows to 100cm, the commercially available original concentration of spraying is 50g / 100ml of chlormequat (meaning that the concentration of chlormequat in this growth regulator is 50g / 100ml) 100ml), and dilute the volume of chlormequat 250 times; the planting density of sorghum is 100000 plants / hm 2 , sorghum was planted with a row spacing of 40 cm, and the others were managed in the field in a conventional manner.

[0025] Planting sorghum in this way, the height of the sorghum plant is less than 160cm when harvested, and the yield is greater than 9000kg / hm 2 , effectively controlling the plant height of sorghum, making it suitable for mechanized harvesting without reducing the yield of sorghum.

[0026] The following is an example of specific experimental data to illustrate the effects of different growth regulators, different concentrations of growth regulators and different co...

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Abstract

The invention discloses a method for efficiently controlling the grain sorghum plant height. The method comprises the steps that when sorghum grows to 60-100 cm, a growth regulator is sprayed, and the volume dilution ratio of the growth regulator is 200-400; the sorghum planting density is 100,000-150,000 / hm<2>. The interaction effects of the sorghum planting density and the growth regulator are combined, and the application amount of the growth regulator, the high sorghum yield and the plant height are determined finally; ethephon with the proper concentration has the effects of promoting various sorghum physiological metabolisms and improving the photosynthetic performance, finally the grain yield is increased, it is determined that the best coupling degree of the growth regulator application and high sorghum yield and planting density is 200 times that of dilution of ethepon, and the sorghum planting density is 150,000 / hm<2>, and the harvesting sorghum plant height is effectively controlled. Starting with farm machine harvesting and high sorghum yield by controlling the height of sorghum plants, agriculture and agricultural machines are organically combined, condensed planting and plant height are organically combined, and the labor intensity of sorghum planting is greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of crop planting, and in particular relates to a method for efficiently controlling the plant height of grain sorghum. Background technique [0002] Sorghum is an important crop in the global agricultural ecosystem and one of the important cereal crops in my country. It has strong stress resistance and high photosynthetic efficiency. It is a pioneer crop suitable for growing in marginal farmlands such as drought, saline and barren. High-yielding crops occupy a special place in modern agricultural production. Sorghum grains are not only edible, but also used as the main raw material of traditional brewing industry, and the stalks can also be used as industrial raw materials. This dual-purpose crop plays a pivotal role in sustainable agricultural development. With the continuous development of liquor and Shanxi mature vinegar industry and the adjustment of corn planting industry, sorghum, as the dominant field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G1/00A01N27/00A01N57/20A01N33/12A01P21/00
CPCA01G7/06A01N27/00A01N33/12A01N57/20A01G22/00
Inventor 范娜白文斌彭之东赵建武周福平马涌张建华
Owner SHANXI ACADEMY OF AGRI SCI SORGHUM RES INST
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