Effect of Bio-organic Fertilizer on Growth Trait of Millet

doi:10.11924/j.issn.1000-6850.casb2024-0763

Abstract

Abstract:

To study the application effect of bio-organic fertilizer in millet planting, and obtain the best bio-organic fertilizer application rate for planting millet in Hebei area, the field experiment of ‘Jigu 35’ was carried out from June 2023 to September 2023, and six treatments were set as followed: no fertilization (DCK₁), pure chemical fertilizer (DCK₂), 2250 kg/hm² bio-organic fertilizer (D₁), 4500 kg/hm² bio-organic fertilizer (D₂), 6750 kg/hm² bio-organic fertilizer (D₃), 9000 kg/hm² bio-organic fertilizer (D₄). The effects of different application rates of bio-organic fertilizer on plant height, stem diameter, leaf area, SPAD value, aboveground biomass and underground biomass of millet were analyzed. The results showed that the application of bio-organic fertilizer had a significant positive effect on the growth traits of millet, and the effects of different application amounts on the growth of millet were different. Among them, D₃ and D₄ treatments had better effects. However, from the perspective of saving resources, it was recommended to choose D₃ treatment as the optimal application amount of bio-organic fertilizer for planting millet, which was 6750 kg/hm² of bio-organic fertilizer, so as to achieve the purpose of replacing chemical fertilizer with bio-organic fertilizer, while reducing the negative impact on the environment, and promoting the sustainable development of agriculture. It also laid a solid foundation for further optimizing millet planting technology and improving the yield and quality of millet.

Key words: bio-organic fertilizer, fertilization amount, millet, cultivation, growth trait

WU Suxia, ZHAO Peng, FAN Hairong, SONG Shitao, CHEN Lina, JIN Changmin, CUI Yue. Effect of Bio-organic Fertilizer on Growth Trait of Millet[J]. Chinese Agricultural Science Bulletin, 2025, 41(8): 19-24.

Figures/Tables 8

References 22

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处理	苗期	拔节期	灌浆期	成熟期
DCK₁	21.07±2.86b	71.48±10.11c	138.02±8.45b	146.97±7.78b
DCK₂	30.95±0.85a	86.04±6.20ab	156.44±0.31a	157.84±2.76a
D₁	24.86±4.44ab	76.57±4.11bc	148.92±1.45a	151.56±0.20ab
D₂	28.14±3.44ab	88.75±2.85a	150.75±0.58a	152.58±8.91ab
D₃	28.27±7.44ab	88.63±1.01a	151.31±2.30a	152.94±2.99ab
D₄	24.26±4.17ab	88.77±6.45a	153.26±4.92a	155.38±2.28ab

处理	苗期	拔节期	灌浆期	成熟期
DCK₁	21.07±2.86b	71.48±10.11c	138.02±8.45b	146.97±7.78b
DCK₂	30.95±0.85a	86.04±6.20ab	156.44±0.31a	157.84±2.76a
D₁	24.86±4.44ab	76.57±4.11bc	148.92±1.45a	151.56±0.20ab
D₂	28.14±3.44ab	88.75±2.85a	150.75±0.58a	152.58±8.91ab
D₃	28.27±7.44ab	88.63±1.01a	151.31±2.30a	152.94±2.99ab
D₄	24.26±4.17ab	88.77±6.45a	153.26±4.92a	155.38±2.28ab

处理	苗期	拔节期	灌浆期	成熟期
DCK₁	2.84±0.15b	5.50±0.73b	5.67±0.42b	5.79±0.09b
DCK₂	3.44±0.57ab	5.92±0.20ab	7.80±0.35a	7.91±0.60a
D₁	3.13±0.10ab	5.95±1.35ab	7.41±0.28a	7.48±0.04a
D₂	3.45±0.50ab	6.57±0.70ab	7.78±0.36a	7.82±0.02a
D₃	3.74±0.62a	5.68±1.21ab	7.93±0.64a	8.01±0.53a
D₄	2.88±0.08b	7.44±1.12a	7.95±0.64a	7.96±0.10a

处理	苗期	拔节期	灌浆期	成熟期
DCK₁	2.84±0.15b	5.50±0.73b	5.67±0.42b	5.79±0.09b
DCK₂	3.44±0.57ab	5.92±0.20ab	7.80±0.35a	7.91±0.60a
D₁	3.13±0.10ab	5.95±1.35ab	7.41±0.28a	7.48±0.04a
D₂	3.45±0.50ab	6.57±0.70ab	7.78±0.36a	7.82±0.02a
D₃	3.74±0.62a	5.68±1.21ab	7.93±0.64a	8.01±0.53a
D₄	2.88±0.08b	7.44±1.12a	7.95±0.64a	7.96±0.10a

处理	苗期	拔节期	灌浆期	成熟期
DCK₁	5.69±2.29a	45.97±11.25b	52.6±2.54e	53.11±6.5d
DCK₂	11.11±2.97a	61.85±4.15ab	107.08±0.62a	108.02±4.72a
D₁	8.11±3.32a	49.28±6.22ab	72.73±9.64d	74.64±5.17c
D₂	8.27±3.64a	64.57±14.71a	86.32±4.97c	86.69±5.31b
D₃	10.29±2.33a	56.99±4.29ab	90.07±3.05bc	93.34±4.68b
D₄	8.70±3.75a	63.56±6.97a	95.74±0.06b	95.69±0.49b