Fertilizing method of forage grass

Abstract

The invention provides a fertilizing method of forage grass. According to the fertilizing method, urea is taken as a nitrogen fertilizer, calcium superphosphate is taken as a phosphorous fertilizer and potassium sulfate is taken as a potassium fertilizer, wherein the use amounts of nitrogen, phosphorous and potassium are metered in parts by weight according to a ratio of N to P2O5 to K2O being 1.986 to 1 to 2.114. The fertilizing method comprises the following steps of firstly, applying all the phosphorous fertilizer and 45% of the nitrogen fertilizer and the potassium fertilizer taken as base fertilizers into culture soil; applying 25% of the nitrogen fertilizer and the potassium fertilizer taken as first time topdressing at a tillering stage; and averagely distributing and applying the residual 30% of the nitrogen fertilizer and the potassium fertilizer after each time of harvesting. According to the fertilizing method provided by the invention, the suitable nitrogen fertilizer, phosphorous fertilizer and potassium fertilizer are selected to be reasonably matched with the use amounts of the nitrogen fertilizer, the phosphorous fertilizer and the potassium fertilizer so as to meet nutrition requirements of orchard grass very well; meanwhile, a fertilizing manner is matched to sufficiently improve the nutrition absorption of prior periods and post periods of the orchard grass; the quality and the yield of the orchard grass are improved effectively; the energy source consumption is reduced, the environmental pollution is avoided and the soil fertility is improved, so that the economic benefits of production of the orchard grass are improved greatly.

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 method for fertilizing grass, in particular to a method for fertilizing 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 achieved certain economic, eco...

AI Technical Summary

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

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