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...

Examples

Embodiment 1

[0032] For high-fertility fields, use N:P as base fertilizer 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 40kg / 667m 2 . The top dressing is 10kg of potassium nitrate and 15kg of potassium sulfate.

[0033] Fertilizer preparation method: It is made by drum steam granulation process, that is, each component is pre-crushed separately, then stirred and mixed, and then crushed into powder, and the mixed components are drum-granulated. The granulation process and conditions In order to add an appropriate amount of steam to the drum, it is advisable to start the agglomeration of the mixed elemental fertilizer powder. The roughly agglomerated powder is fed into the drying kiln through the belt for drying, and the temperature at the entrance of the drying kiln is controlled at about 140°C. The powder is further granulated and dried in the drying kiln, cooled by the cooling kiln, and the finished product is bagged after screening, and the oversiz...

Embodiment 2

[0035] For fields with medium fertility, the base fertilizer is N:P 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 45kg / 667m 2 . The top dressing is 10kg of potassium nitrate and 15kg of potassium sulfate.

[0036] Fertilizer preparation method: with embodiment one.

Embodiment 3

[0038] For fields with low fertility, the base fertilizer is N:P 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 50kg / 667m 2 . Top dressing is potassium nitrate 10kg, potassium sulfate 15kg.

[0039] Fertilizer preparation method: with embodiment one.

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...

Examples

Embodiment 1

[0032] For high-fertility fields, use N:P as base fertilizer 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 40kg / 667m 2 . The top dressing is 10kg of potassium nitrate and 15kg of potassium sulfate.

[0033] Fertilizer preparation method: It is made by drum steam granulation process, that is, each component is pre-crushed separately, then stirred and mixed, and then crushed into powder, and the mixed components are drum-granulated. The granulation process and conditions In order to add an appropriate amount of steam to the drum, it is advisable to start the agglomeration of the mixed elemental fertilizer powder. The roughly agglomerated powder is fed into the drying kiln through the belt for drying, and the temperature at the entrance of the drying kiln is controlled at about 140°C. The powder is further granulated and dried in the drying kiln, cooled by the cooling kiln, and the finished product is bagged after screening, and the oversiz...

Embodiment 2

[0035] For fields with medium fertility, the base fertilizer is N:P 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 45kg / 667m 2 . The top dressing is 10kg of potassium nitrate and 15kg of potassium sulfate.

[0036] Fertilizer preparation method: with embodiment one.

Embodiment 3

[0038] For fields with low fertility, the base fertilizer is N:P 2 o 5 : K 2 O=11:17:25 ratio for preparation, the recommended application rate is 50kg / 667m 2 . Top dressing is potassium nitrate 10kg, potassium sulfate 15kg.

[0039] Fertilizer preparation method: with embodiment one.

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