The ox horn pepper demonstration base is located in Huanghaizi Village, Chengchuan Town, Etuokeqian Banner, Ordos City, with a demonstration area of 20 mu, location coordinates: east longitude: 108°08″, north latitude: 37°77″, and the demonstration field was established on June 10, 2021 Day planting, the planting variety is 306. Otuokeqian Banner is located in the southwest of the Ordos Plateau, which has a typical temperate continental monsoon climate. There are three types of landforms: beam, beach and sand. Located in the temperate zone with arid and semi-arid continental climate, the average annual precipitation is only 294.1mm, while the annual evaporation reaches 2514.8mm. It has created the climate characteristics of nine droughts in ten years, and the evaporation is 8.5 times that of rainfall, which is one of the reasons for the drought of crops and pastures.

Fertilizer usage: 6-7 square meters of cow dung, 85 yuan per square; compound fertilizer Yuntianhua pepper special fertilizer 17-17-17 (40kg/mu) + high phosphorus fertilizer (diammonium 40kg/mu), with a density of about 4,000 plants. Application of top dressing: 1. The demonstration field uses Yuantaifeng soil conditioner 10kg/mu, carbon gold Lux balanced type 10kg/mu, carbon gold Lux high potassium type 10kg/mu, the total market retail price is 260 yuan/mu, respectively in Application at the seedling stage, flower bud stage, and fruit expansion stage; combined with urea (3-5kg/mu), high-phosphorus water-soluble fertilizer (3-5kg/mu), balanced water-soluble fertilizer (5kg/mu), high-potassium water-soluble fertilizer ( 5kg/mu) alternately, combined with topdressing, a total of 800 yuan/mu. 2. In the control field, use 5kg/mu of liquid fertilizer for rooting bacteria, 3-5kg/mu of urea + high-nitrogen water-soluble fertilizer to raise seedlings 2-3 times. In the mid-term, use high-phosphorus water-soluble fertilizer 3-5kg/mu + urea 3-5kg/mu, balanced fertilizer 3-5kg/mu + medium and trace element fertilizer 5kg/mu, high-potassium fertilizer 5kg/mu for 3-5 times, total topdressing The fertilizer cost is about 750-800 yuan.

Table 1 Fertilization details of demonstration field and control field

deal with	Fertilizer name and application rate (mu)	area	Application method
demonstration field	Base fertilizer: cow dung 6-7 square meters/mu (500-600 yuan)                        17-17-17 compound fertilizer 40kg/mu (150)                        Diammonium 40kg/mu (about 135 yuan) Top dressing: Yuantaifeng soil conditioner 10kg/mu                       Urea 3-5kg/mu, 3-5 times                       Yuantaifeng carbon gold Lux balance type 10kg/mu High phosphorus type 3-5kg/mu, 2-3 times Balanced fertilizer 3-5kg/mu, about 3 times Yuantaifeng Carbon Gold Lux High Potassium Type 10kg/mu High potassium fertilizer 5kg/mu, 3-5 times Top dressing totals 1060 yuan;	20 acres	Drip irrigation under mulch
control field	Base fertilizer: cow dung 6-7 square meters/mu (500-600 yuan)                        17-17-17 compound fertilizer 40kg/mu (150)                        Diammonium 40kg/mu (about 135 yuan) Topdressing: rooting liquid bacterial fertilizer 5kg/mu, 3-5 times                      Urea 3-5kg/mu + high-nitrogen water-soluble fertilizer 5kg/mu, 2-3 times High phosphorus type 3-5kg/mu + urea, 2-3 times Balanced fertilizer 3-5kg/mu, about 3 times High potassium fertilizer 5kg/mu, 3-5 times Topdressing totals 750-800 yuan;	10 acres	Drip irrigation under mulch

Comparison between the demonstration field and the control field

From the comparison photos, we can intuitively see that the peppers using Yuantaifeng organic fertilizer have luxuriant branches and leaves, and the plant height, number of leaves, and number of peppers are all higher than those in the control field, and the peppers that turn red are also more than those in the control field. . Demonstration households said: the spot color of peppers using Yuantaifeng organic fertilizer is about to grow, and there are more red peppers. There are much fewer deformed peppers and diseased plants than the control field, and the fineness and commercial rate of commercial peppers are higher than those of the control field. Tian, using Yuan Taifeng's peppers at the purchase point can sell for 2-3 cents more!

Table 2. Plant data measurements

data measurement	Chlorophyll %	Nitrogen content%	Moisture%	temperature °C	Leaf thickness mm
demonstration field	49	18.2	72.8	23.12	0.66
control field	38.1	14.7	58.8	23.1	0.6

Analysis of the plant data of the demonstration field and the control field: the chlorophyll, nitrogen content, water, temperature, and leaf thickness of the demonstration field were 28.6%, 23.8%, 23.8%, 0.08%, and 10% higher than those of the control field, respectively. High chlorophyll content indicates that the photosynthesis of plants Strong, more nitrogen content means more photosynthetic products than the control, providing sufficient nutrients and nutrients for the expansion and spot color of peppers.

From the yield measurement results of a single plant, it can be seen that the peppers using Yuantaifeng soil conditioner, carbon gold Lux balanced fertilizer, and high potassium fertilizer: the stem diameter is 1.04mm more than the control field, an increase of 10.6%, and the plant height is 10cm more than the control field, an increase 12.5%; the fruit diameter was 6.03 more, an increase of 26.21%; the number of peppers was increased by 4 compared with the control field, an increase of 17.39%; the fruit weight per plant was 0.14kg more than that of the control field, an increase of 14.89%.

The yield per plant was measured on site, and the data are as follows:

Test items	Stem thickness	plant height	Fruit diameter	number of peppers	Fruit weight per plant	increase
demonstration field	10.82	90cm	29.03	27	1.08	14.89%
control field	9.78	80cm	23	23	0.94	——

(1) Demonstration field: use Yuantaifeng fertilizer and water-soluble fertilizer with a large number of elements for top dressing, a total of 1060 yuan.

(2) Control group: use conventional water-soluble fertilizers totaling 750-800 yuan.

The fertilizer input in the demonstration field is 310 yuan more than that in the control field (the topdressing fertilizer in the control field is calculated at 750 yuan), the pepper planting density is about 4,000 plants, and the yield per mu is increased by 560kg. The extra fertilizer cost is 310 yuan, and the net income per mu is 1370 yuan.