Citrus proprietary formula fertile being suitable for purple shale soil and applications thereof

Abstract

The invention belongs to the technical field of fertilizer preparation, in particular to preparation of citrus proprietary formula fertile being suitable for purple shale soil and applications thereof, which is characterized in that the fertilizer comprises the following effective elements according to pure nutrient in weight percent: 14-18% of nitrogen, 8-10% of phosphorus pentoxide, 8-12% of potassium oxide, 8% of humic acid, 0.05-0.08% of pure boron, and 0.6-1% of zinc oxide; or 12-15% of nitrogen, 6-10% of phosphorus pentoxide, 12-15% of potassium oxide, and 8% of humic acid. The citrus proprietary formula fertile is more suitable for citrus orchards in Three Gorge area, and solves the problems of super high citrus density in the area, single fertilizer types, unreasonable fertilizer proportioning, low fertilizer utilization, and decreased output and quality and the like. By the invention, the yield of the Newhall navel orange is increased by 38.53% and 23.04%, the yield of the Robertson Navel orange is increased by 10.68% and 21.14%, and the yield of the Cara Navel orange is increased by 25% and 15.38% for two consecutive years; and the content of fruit vitamin C is improved by 2-5mg / 100g, and the fruit commodity is good.

Description

technical field [0001] The invention belongs to the technical field of fertilizer preparation and utilization, and in particular relates to the preparation and application of a citrus-specific formula fertilizer for purple shale soil. Background technique [0002] As the number one fruit in the world, citrus is the third most traded agricultural product after wheat and corn. In 2004, my country's citrus output was 14.958 million tons, second only to Brazil and surpassed the United States for the first time to become the world's second largest citrus producer. By 2007, the output reached 20.583 million tons, which was on par with Brazil, the world's largest citrus producer. According to statistics in 2008, China's citrus planting area and output both ranked first in the world. At the same time, relevant data show that the average yield of citrus in my country in 2005 was only 9.31t / hm2 per hectare, lower than the average yield of 14.15t in the world. [0003] Zigui, located...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a special formula fertilizer for citrus suitable for purple shale soil, which meets the needs of the labor-saving cultivation mode of mountain orange groves in Zigui County, Hubei Province. The continuous plot fertilizer efficiency test and the special fertilizer promotion test were verified and formulated to solve the contradictions in the annual root growth, new shoot generation, flower bud differentiation, and fruit development of citrus trees in this area. The citrus compound fertilizer has a single and unreasonable ratio of nitrogen, phosphorus and potassium, and lacks organic matter, boron, and zinc fertilizers, which can significantly promote the high yield of citrus and improve the quality of citrus

Images