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How to fertilize duckweed

A fertilization method and technology of Dactylis sativa, applied in the direction of fertilization method, fertilization device, application, etc., can solve the problems of low production performance and grass quality of Dactylis sativa, the economic benefit of Dactylis sativa cultivation needs to be improved, and the balanced application of nitrogen, phosphorus and potassium, etc. , to improve quality and output, reduce energy consumption, and avoid environmental pollution

Inactive Publication Date: 2014-10-22
SOUTHWEST UNIV
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  • Abstract
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  • Claims
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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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  • How to fertilize duckweed
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Examples

Experimental program
Comparison scheme
Effect test

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 Dactylis species is the model Dactylis 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″ north latitude, an...

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 experimental treatments and N, P, K contents

[0027]

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Abstract

The invention discloses a method for fertilizing orchardgrass. The method utilizes urea as nitrogenous fertilizer, calcium superphosphate as phosphate fertilizer and potassium sulfate as potassic fertilizer, wherein a weight part ratio of N to P2O5 to K2O is 1.986: 1: 2.114. The method comprises the following steps of applying all the phosphate fertilizer, 45% of the potassic fertilizer and 45% of the nitrogenous fertilizer as base fertilizer into cultivation soil, applying 25% of the nitrogenous fertilizer and 25% of the potassic fertilizer as primary topdressing fertilizer into the cultivation soil in a tillering stage, and averagely applying the rest of the nitrogenous fertilizer and the potassic fertilizer into the cultivation soil after each harvest process. Through selection of appropriate nitrogenous fertilizer, phosphate fertilizer and potassic fertilizer and reasonable collocation of the fertilizer use amounts, the method satisfies orchardgrass nutritional requirements, fully improves nutrient absorption in growth earlier and later stages of orchardgrass by the fertilization processes, effectively improves orchardgrass quality and output, reduces energy consumption, avoids environmental pollution, improves soil fertility, and greatly improves economic benefits of orchardgrass production.

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 of Dactylis duckweed, in particular to a fertilization method of Dactylis duckweed. 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 achieve...

Claims

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Application Information

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Patent Type & Authority Patents(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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