Nitrogen, phosphorus and potassium compound fertilizer for tobacco 97 and application method for fertilizer

Abstract

The invention discloses a nitrogen, phosphorus and potassium compound fertilizer for a tobacco 97. The compound fertilizer comprises the following single fertilizers in percentage by weight: 13 percent of ammonium nitrate, 38 percent of diammonium phosphate and 49 percent of potassium sulfate. Every 40 to 50 kilograms of the compound fertilizer contain 10 kg / 667m<2> of potassium nitrate and 15 kg / 667m<2>. After the compound fertilizer is used, the whole tobacco plant grows well and has high disease resistance, in particular high pectobacterium atrosepticum resistance; respective agronomic trait values are high; and the length and the width of the waist are increased by 7.69-9.45 percent and 2 to 3.22 percent respectively.

Description

technical field [0001] The invention relates to the technical field of tobacco planting, in particular to a Yunyan 97 nitrogen, phosphorus and potassium compound fertilizer and an application method thereof. Background technique [0002] Yunyan 97, a new variety of flue-cured tobacco, was bred by the Yunnan Academy of Tobacco Agricultural Sciences with Yunyan 85 as the female parent and CV87 as the male parent. It was approved by the National Tobacco Variety Approval Committee in 2009. The overall performance of Yunyan 97 from the seedling stage to the field stage is good, with strong growth, neat growth, strong disease resistance, beautiful field growth, high yield and output value, which are liked by tobacco farmers and easily accepted by tobacco factories. [0003] In recent years, with the rapid development of flue-cured tobacco production, some problems have become increasingly prominent, such as low scale, single variety structure, low potassium content in tobacco lea...

AI Technical Summary

Problems solved by technology

At present, due to the lack of scientific guidance in the traditional planting mode, tobacco farmers have unreasonable fertilizer types and nutrient distribution ratios in production, which is manifested by some farmers still using urea on flue-cured tobacco [1] and excessive nitrogen application, insufficient potassium application, etc.

Tobacco farmers use chemical fertilizers blindly. The unreasonable nutrient distribution not only reduces the fertilizer utilization rate, increases the fertilizer cost, but also adversely affects the yield and quality of tobacco leaves. What is more serious is that too much chemical fertilizer has already damaged our living environment. Produce adverse consequences (water pollution, agricultural product pollution and greenhouse effect, etc.) [2]

[0004] It is known that tobacco companies around the world already have special nitrogen, phosphorus and potassium compound fertilizers for flue-cured tobacco, but there is no specific nitrogen, phosphorus and potassium compound fertilizer for Yunyan 97

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