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Method and chemical preparation for improving assimilation of wheat NH4<+> and increasing grain yield

A chemical preparation and wheat technology, which is applied in the field of regulating NH4+ assimilation of cereal crops, can solve the problems of reduced mechanical strength of stalks, decreased antioxidant capacity, increased lodging rate, etc. The method is easy and reliable, improves production safety, and increases mechanical strength Effect

Active Publication Date: 2019-12-24
CROP RES INST SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention is aimed at the urea or NH 4 + - Excessive application of N fertilizer, NH appeared in different periods of wheat 4 + The phenomenon of excessive content of symptoms, the chemical preparations for soil use (before jointing of wheat) and foliage spraying (spraying at jointing stage, spraying before flowering and spraying at the beginning of filling) were prepared respectively, and different Chemical agents that can promote wheat NH 4 + Assimilation, and then converted into protein and promote the transport of vegetative organs during the grain filling stage of wheat, increase grain yield, and can play an anti-lodging effect, overcoming NH 4 + Problems such as "disorder of wheat leaf metabolism, reduced mechanical strength of stalks, increased lodging rate, and decreased antioxidant capacity" caused by excessive content

Method used

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  • Method and chemical preparation for improving assimilation of wheat NH4&lt;+&gt; and increasing grain yield
  • Method and chemical preparation for improving assimilation of wheat NH4&lt;+&gt; and increasing grain yield

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Effect test

Embodiment 1

[0032] Problem: high nitrogen plots, and due to excessive urea base application (base application pure N is 17.4kg / 667m 2 ), more yellow leaves were found at the rising stage of wheat, the root system was shallow, and the root system NH 4 + The -N content was 30.22 μg / g fresh weight.

[0033] Solution:

[0034] 1. Soil use

[0035] Soil furrow application: Potassium nitrate 6kg / 667m 2 , potassium silicate 8kg / 667m 2 , calcium silicate 6kg / 667m 2 ; Immediately irrigate.

[0036] 2. Foliar spraying

[0037] 2.2 preparation preparation

[0038] 2.2.1 Mother liquor preparation:

[0039] JA mother liquor: Dissolve jasmonic acid (JA) in dimethyl sulfoxide at a ratio of 1:1 (mg:mL), and store at low temperature;

[0040] IAA stock solution: Dissolve auxin (IAA) in dimethyl sulfoxide at a ratio of 0.175:1 (mg:mL), and store at low temperature.

[0041] 2.2.2 Spray before flowering

[0042] Raise Wheat NH 4 + Assimilation and Kuqiang's foliar spray preparation (1L) consis...

Embodiment 2

[0053] Problem: In high-fertilization plots, excessive application of urea in the early stage of wheat (basal application of pure N before wheat sowing is 16.0kg / 667m 2 ; Topdressing urea during the rising period of wheat, equivalent to pure N 11.5kg / 667m 2 ), the plant NH appeared before flowering 4 + Hyperactivity Symptoms, NH 4 + The -N content was 31.54 μg / g fresh weight.

[0054] Solution: Spray the preparation in the following way.

[0055] 1. Mother liquor preparation

[0056] JA mother liquor: dissolve jasmonic acid in dimethyl sulfoxide at a ratio of 1:1 (mg:mL), and store at low temperature;

[0057] IAA stock solution: Dissolve auxin (IAA) in dimethyl sulfoxide at 0.175:1 (mg:mL).

[0058] 2. Spray before flowering

[0059] Boost Wheat NH 4 + The foliar spray preparation (1L) for assimilating and improving the sink strength is composed of the following components: 25g of potassium nitrate, 25g of potassium silicate, 6g of calcium silicate, and 0.2mL of JA ...

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Abstract

The invention discloses a method and a chemical preparation for improving assimilation of wheat NH4<+> and increasing grain yield. Aiming to overcome the problem of over-high content of NH4<+> at different growth stages of wheat due to basal application and / or dressing of urea or excessive application of NH4<+>-N fertilizer, different chemical preparations are applied at different stages to improve assimilation of wheat NH4<+> so as to convert into protein and promote operation of vegetative organs of wheat in the filling stage, increase the grain yield, and achieve lodging resistance effect,thereby solving a series of problems caused by over-high content of NH4<+>. The chemical preparations include potassium nitrate, potassium silicate and calcium silicate broadcast or applied by furrowing to soil surface before the jointing of wheat; the preparation, containing potassium nitrate, potassium silicate and JA mother liquor, sprayed during the jointing stage; the preparation B, containing potassium nitrate, potassium silicate and calcium silicate and JA mother liquor, sprayed before the flowering season; the preparation, containing potassium nitrate, JA mother liquor and IAA mother liquor, sprayed at the beginning of the filling stage.

Description

technical field [0001] The invention belongs to the regulation and control of cereal crop NH 4 + Assimilation technology field, especially related to a kind of promoting wheat NH 4 + A method and a chemical preparation for converting into protein and promoting the translocation of vegetative organs in wheat grain filling stage and improving grain yield. Background technique [0002] Wheat is the most important food crop in the world. In my country, the status of wheat is second only to rice. Nitrogen is one of the essential nutrient elements for plant growth and development. It plays an extremely important role in the process of plant growth and development. It is the main component of proteins and nucleotides, and an important component of chlorophyll, vitamins, alkaloids and certain hormones. Part; the above components participate in many important metabolic processes in plants. Plant roots absorb nitrogen mainly as NH 4 + and NO 3 - dominated, however most plant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01C21/00A01G7/06C05G1/00C05G3/00
CPCA01C21/005A01G7/06A01G22/20C05C5/00C05C5/02C05G3/00C05D3/00
Inventor 孔令安冯波张荣亭司纪升王宗帅张云秀吕雪梅
Owner CROP RES INST SHANDONG ACAD OF AGRI SCI
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