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Fertilizer application method capable of improving panicle weight of rice

A fertilization method and panicle weight technology, applied in the field of crop cultivation, can solve problems such as poor grain filling

Inactive Publication Date: 2018-07-03
青岛九天智慧农业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the change of indole acetic acid content in the early stage of rice grain filling is consistent with the rate of grain filling; exogenous spraying of gibberellin will lead to poor grain filling

Method used

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  • Fertilizer application method capable of improving panicle weight of rice
  • Fertilizer application method capable of improving panicle weight of rice
  • Fertilizer application method capable of improving panicle weight of rice

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The rice fertilization method of the present invention is applied to the early-maturing late japonica rice (Wuyunjing No. 7, popularized and applied by the Agricultural Science Research Institute of Wujin City, Jiangsu Province) in Qingdao City, Shandong Province, China, and sprays 1 μmol / L24-table rapeseed three times in the young panicle differentiation stage The steroid lactone solution, 7 days apart each time, compared with only applying Stanley's fourth element compound fertilizer (using 700kg per hectare), adopting the five-point sampling method, getting the main ear of each rice plant to measure the ear weight, and the effective ear weight of each plant (the number of solid grains per panicle is more than 5), the panicle weight of rice increases by 16.25%, and the yield of rice plants increases by 14.64%.

[0034]

Embodiment 2

[0036] The rice fertilization method of the present invention is applied to Dongying hybrid rice in Shandong Province, China (Chaoyouqian, popularized and applied by Hunan Hybrid Rice Research Center), spraying 1 μmol / L24-epibrassinolide solution three times in the young panicle differentiation stage, every 7 days apart, compared with only applying the Stanley fourth element compound fertilizer (applying 700kg per hectare), adopting the five-point sampling method, getting the main panicle of each rice plant to measure the panicle weight, and the effective panicle of each plant (the number of solid grains per panicle) More than 5 grains) the panicle weight of rice increases by 13.49%, and the yield of rice plants increases by 11.31%.

[0037]

Embodiment 3

[0039] The rice fertilization method of the present invention is applied to late indica rice in Yancheng City, Jiangsu Province, China (Huang Huazhan, promoted and applied by the Rice Research Institute of Guangdong Academy of Agricultural Sciences), spraying 1 μmol / L24-epibrassinolide solution three times in the young panicle differentiation stage, each time 7 days apart, compared with only applying the Stanley fourth element compound fertilizer (applying 700kg per hectare), adopting the five-point sampling method, taking the main panicle of each rice plant to measure the panicle weight, and the effective panicle of each plant (the number of solid grains per panicle exceeds 5 grains) rice panicle weight increased by 12.52%, rice plant yield increased by 11.49%.

[0040]

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Abstract

The invention discloses a fertilizer application method capable of improving the panicle weight of rice. The fertilizer application method comprises the following steps: on the basis of applying a Stanley fourth-element compound fertilizer, spraying a 24-epibrassinolide solution, wherein the application amount of the Stanley fourth-element compound fertilizer is 500 to 900 kg per hectare; on the basis of applying the Stanley fourth-element compound fertilizer, spraying the 24-epibrassinolide solution in the initial stage of young spike differentiation; and on the basis of applying the Stanleyfourth-element compound fertilizer, carrying out foliage spray with the 24-epibrassinolide solution. The fertilizer application method provided by the invention is used in places like Shandong Qingdao, Dongying and Jiangsu Yancheng, increases the panicle weight of the rice compared with the panicle weight of contrasted rice, and is applicable to japonica rice and indica rice at the same time.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a fertilization method for increasing rice panicle weight. Background technique [0002] Rice is one of the important food crops in my country, and more than 65% of the population takes rice as staple food. Although the sown area of ​​rice in my country in 2010 was 29.78 million hectares and the total output was 196 million tons, China has a population of 1.347 billion and it is increasing at a rate of 4.79‰. [0003] Therefore, China is facing the problem of food security brought about by population increase. With the reduction of arable land, by 2030, China's annual grain output must reach at least 600 million tons to meet the needs of population growth. It can be seen that rice is one of the most important food crops in my country, and the increase in its yield will become the key to solving the food security problems in my country and the world. [0004] The numbe...

Claims

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Application Information

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IPC IPC(8): A01C21/00
CPCA01C21/005
Inventor 张国栋刘佳音邵晓宇邹丹丹张继雨张佩王晶米铁柱
Owner 青岛九天智慧农业集团有限公司
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