Fertilization method

A fertilization method and nitrogen fertilizer technology, which are applied in the directions of fertilization method, fertilization device, application, etc., can solve the problems of low production performance and grass quality of duck grass, economic benefit of duck grass cultivation, and balanced application of nitrogen, phosphorus and potassium. Achieve the effect of improving quality and output, reducing energy consumption and avoiding environmental pollution

Inactive Publication Date: 2014-01-01
SOUTHWEST UNIV
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Problems solved by technology

However, in the process of planting Dactylis chinensis, there was no in-depth research on Dactylis sagerum, and the balanced application of nitrogen, phosphorus and potassium was not made according to the local soil fertility. As a result, the production performance and grass quality of Dactylis sativa were not high, and environmental pollution was caused. The economic benefit of cultivation needs to be improved

Method used

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Embodiment 1

[0018] Using nitrogen, phosphorus, potassium three factors quadratic D-saturation optimal design, through the field test in the Three Gorges reservoir area. The tested duckweed variety is the model duckweed, which is also provided by Beijing Bailu Company. The germination rate is measured in the laboratory, and no treatment is done before sowing. The nitrogen fertilizer tested was urea (46% N content), produced by China Nuclear Industry Jianfeng Chemical Plant, and the phosphate fertilizer was superphosphate (P 2 o 5 The content is 12%) produced by Luzhou Xingtai Phosphate Fertilizer Co., Ltd., and the potash fertilizer is potassium sulfate (K 2 O content is 25%), produced by Weifang Xidefeng Agrochemical Co., Ltd. The actual amount of fertilization in the test was expressed as pure N, P 2 o 5 and K 2 O equivalent calculation.

[0019] The test site is located in Fengdu County, Chongqing City. It is located at 107°28′03″-108°12′37″ east longitude, 29°33′18″-30°16′25″ nor...

Embodiment 2

[0025] The difference of N, P and K contents in the dry matter of Dactylis chinensis under different treatment conditions was studied through the field experiment of balanced fertilization of Dactylis sativa, so as to clarify the influence of different fertilization treatments on the quality of Dactylis sativa. The test location and treatment are the same as in Example 1. The test results are as follows:

[0026] Table 2 Different test treatments and N, P, K content

[0027]

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Abstract

The invention relates to a fertilization method. The fertilization method comprises the steps of adopting urea as a nitrogen fertilizer, calcium superphosphate as a phosphorus fertilizer and potassium sulfate as a potassium fertilizer, wherein the ratio of the using quantity in parts by weight of nitrogen to phosphorus to potassium is 1.986: 1: 2.114 calculated by N, P2O5 and K2O; firstly applying the total phosphorus fertilizer and 45% of the nitrogen fertilizer and the potassium fertilizer into cultivation soil as a base fertilizer, applying 25% of the nitrogen fertilizer and the potassium fertilizer as a first additional fertilizer during the tillering stage, and averagely distributing and applying the remaining 30% of the nitrogen fertilizer and the potassium fertilizer after every harvest. According to the fertilization method disclosed by the invention, by selecting the appropriate nitrogen, phosphorus and potassium fertilizers and reasonably matching the using quantities of the nitrogen, phosphorous and potassium fertilizers, the nutritional requirements of cocksfoot are well met; simultaneously, a fertilization way is used for matching, so that the nutrition absorption during the earlier stage and later stage of growth of the cocksfoot is fully improved; the quality and yield of the cocksfoot are effectively improved, the energy consumption is reduced, the environmental pollution is avoided, the soil fertility is improved, and the economic benefits of production of the cocksfoot are greatly improved.

Description

[0001] The application of the present invention is a divisional application for the invention patent with application number 201110355876.4 and application date of November 10, 2011. technical field [0002] The invention relates to a fertilization method, in particular to a fertilization method of Dactylis chinensis. Background technique [0003] Dactylis, also known as chicken foot grass and orchard grass, is native to Europe, North Africa and Asia in the temperate zone. It is one of the world-renowned temperate grasses. It has been planted in North America for more than 200 years. It is currently one of the large-scale cultivated grasses in the United States. First, it is also one of the excellent mixed grass species for understory grassland and high-efficiency artificial grassland. [0004] In recent years, duckweed has been widely cultivated and applied in Sichuan, Chongqing, Shanxi, Gansu, Heilongjiang and other places in my country, and has achieved certain economic, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00
Inventor 曾兵左福元王宝全兰英周沛韩玉竹
Owner SOUTHWEST UNIV
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