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Method for detecting phosphorus recirculation in growing period of corns

A technology of recycling and corn, which is applied in the field of corn, can solve the problems of complicated procedures, long test time, and inability to meet the timely and rapid detection of samples, and achieve the effect of wide measurable range, high measurement accuracy, fast and simple measurement

Inactive Publication Date: 2014-03-05
MAIZE RES INST SHANDONG ACAD OF AGRI SCI
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Problems solved by technology

These methods generally need to go through the following steps, first transform the plant sample into a solution state, then conduct qualitative analysis separately, and then perform pretreatment on different elements to be measured to

Method used

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  • Method for detecting phosphorus recirculation in growing period of corns
  • Method for detecting phosphorus recirculation in growing period of corns
  • Method for detecting phosphorus recirculation in growing period of corns

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Embodiment 1

[0037] A method for detecting phosphorus recirculation during the growth period of corn of the present invention,

[0038] Include the following steps:

[0039] (1) Determination of phosphorus and calcium content in corn plants, using plasma emission spectrometer to measure the concentration of phosphorus and calcium in corn plants;

[0040] (2) Determination of phosphorus and calcium concentrations in xylem sap;

[0041] (3) Phosphorus recycling flux calculation.

[0042] The determination of phosphorus and calcium content in corn plants in step (1) is specifically as follows:

[0043] ①Dry the samples collected from various parts of corn at different growth stages;

[0044] ②Crush the dry sample, pass it through a 40-mesh nylon sieve, put it into a sample bag, and put it in a desiccator for later use;

[0045] ③Weigh 0.100-0.105g of the crushed dry sample into the digestion tube, add about 3.5ml of concentrated sulfuric acid into the digestion tube with a pipette;

[00...

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Abstract

The invention discloses a method for detecting phosphorus recirculation in the growing period of corns. The recirculation flux of phosphorus is calculated according to the phosphorus and calcium accumulation speed in the specific time period and the phosphorus calcium ratio of xylem juice. By the method, the phosphorus content of the corn plants can be monitored dynamically in real time.

Description

technical field [0001] The invention relates to a kind of corn, in particular to a method for detecting phosphorus recycling in the growth period of corn. Background technique [0002] Phosphorus is one of the three essential nutritional elements for corn, and soil phosphorus deficiency is a key factor restricting the further improvement of grain yield, and its limiting effect is second only to nitrogen. However, available phosphorus in natural soils is seldom enough to meet the needs of optimum growth of maize. Therefore, exploring the genetic potential of corn's own high phosphorus nutrition efficiency and improving the phosphorus nutrition traits of corn have become an effective way to increase the utilization efficiency of phosphorus fertilizer. [0003] Corn is an important food and economic crop in the world, and it is also a typical low phosphorus sensitive crop. The lack of phosphorus in the soil will have a significant impact on the yield and quality of corn. In r...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 刘霞王庆成翟学旭穆春华张秀清张慧齐世军李宗新王盈桦刘林臣刘书聪赵红香
Owner MAIZE RES INST SHANDONG ACAD OF AGRI SCI
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