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Using chicken manure biochar organic fertilizer as the material, the effects of different dosage and biochar application on the growth, development, and quality of Shangluo flue-cured tobacco were studied, in order to provide a theoretical basis for reducing the cost of using organic fertilizer in Shangluo tobacco area. In 2022, a community experiment was conducted on the application technology of chicken manure biochar organic fertilizer in Luonan County, Shangluo City, Shaanxi Province. Six treatments were set up: T1 [ conventional fertilization+ commercial chicken manure (450 kg/hm²) ], T2 [conventional fertilization + commercial chicken manure (900 kg/hm²)], T3 [conventional fertilization+commercial chicken manure (1 050 kg/hm²)], N1 [conventional fertilization+70 chicken manure/30 biochar (750 kg/hm²)], N2 [conventional fertilization+80 chicken manure/20 biochar (750 kg/hm²)] and N3 [conventional fertilization+90 chicken manure/10 biochar (750 kg/hm²)], with CK(conventional fertilization, no organic fertilizer) and CK, (conventional fertilization+tobacco company set organic fertilizer) as controls. The results showed that chicken manure biochar organic fertilizer could significantly improve the agronomic traits and disease resistance of tobacco plants; chicken manure biochar organic fertilizer increased the material accumulation of tobacco plants and enriched their organic elements; chicken manure biochar organic fertilizer significantly improved the economic traits of flue-cured tobacco. The combination of chicken manure and biochar was beneficial for improving the yield and quality of Shangluo flue-cured tobacco, among which N2 treatment [conventional fertilization+80 chicken manure/20 biochar (750 kg/hm²)] has the best effect on improving the growth and development of Shangluo flue-cured tobacco. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Peroxisome proliferators activated receptor γ has been shown to be a key gene regulating adipocyte differentiation. Endurance exercise training is a very effective means of weight loss, but the effect of endurance exercise on the plasma peroxisome proliferators activated receptor γ content and the expression of peroxisome proliferators activated receptor γ protein in adipose tissue of nutritional obese mice remains to be determined. OBJECTIVE: To explore the changes of peroxisome proliferators activated receptor γ protein expression in white adipose tissue and plasma peroxisome proliferators activated receptor γ content in high fat-induced obese mice after moderate-intensity endurance exercise training. METHODS: Forty male C57BL/6J mice of 4 weeks old were provided by Beijing Weitong Lihua Experimental Animal Technology Co., Ltd. and were randomly divided into control group (n=10) and high fat induction group (n=30) after 1 week of adaptive feeding. After high-fat-induced mice were fed with high-fat diet for 8 weeks, 20 mice with larger body weight were divided into obese model group (n=10) and endurance exercise group (n=10) according to S-type grouping. Control group mice were fed with normal diet, no exercise. Mice in the obese model and endurance exercise groups were fed with high fat diet. Mice in the obese model group did not exercise. Mice in the endurance exercise group were subjected to 1 week of adaptive exercise, and then for 8 weeks of moderate-intensity endurance exercise training, 5 times weekly, 60 min/time. At the end of the experiment, the body weight of the mice was weighed, and the plasma level of peroxisome proliferators activated receptor γ was detected. The peripheral and epididymal adipose tissue was obtained and weighed. Part of the adipose tissue was taken for hematoxylin-eosin staining, and the remaining adipose tissue was detected by western blotting for peroxisome proliferators activated receptor γ protein expression. RESULTS AND CONCLUSION: (1) High fat induction could significantly increase the body weight of mice, causing the increase of adipose tissue weight and fat cells in the body. (2) High fat induction could significantly reduce plasma peroxisome proliferators activated receptor γ content and adipose tissue peroxisome proliferators activated receptor γ protein expression. (3) Moderate-intensity endurance exercise training could significantly reduce the body weight of obese mice induced by high fat, significantly reduce the weight of adipose tissue, and significantly reduce the volume of fat cells. (4) Moderate-intensity endurance exercise training can significantly increase the content of peroxisome proliferators activated receptor γ in plasma and significantly increase the expression of peroxisome proliferators activated receptor γ protein in adipose tissue. It is indicated that moderate-intensity endurance exercise training may achieve the purpose of reducing body weight by increasing the content of peroxisome proliferators activated receptor γ in mouse plasma and the expression level of peroxisome proliferators activated receptor γ protein in adipose tissue. [ABSTRACT FROM AUTHOR]