旱薄地夏播谷子氮肥合理施用量及吸氮参数的研究

doi:10.16035/j.issn.1001-7283.2025.02.034

Abstract

Abstract:

The effects of nitrogen fertilizer on yield and lodging of foxtail millet in dry and thin land were studied. The split-plot design method was used to design different nitrogen application rates, with N application rate as the main area, and foxtail millet varieties with different lodging resistance as the sub-area. The amount of P and K fertilizer were the same for all treatments. Different amounts of nitrogen fertilizer were designed and applied to the soil according to the 7:3 ratio of base fertilizer at the sowing stage and topdressing at the jointing stage. The effects of nitrogen fertilizer on the morphological traits, economic traits, nitrogen uptake per 100 kg grain, nitrogen utilization rate and lodging degree of millet crop at different growth stages were discussed. According to the findings, the highest millet yield and the strongest lodging resistance were observed under N2 (180 kg/ha) treatment. With the increase of nitrogen fertilizer, the yield of foxtail millet changed from low production type to medium production or high production type. In order to achieve the corresponding target yield of different foxtail millet varieties, the nitrogen uptake of 100 kg grain was different, and the nitrogen uptake of 100 kg grain of high yield type was about 3.36 kg. The nitrogen application rate of 180 kg/ha was more appropriate for foxtail millet in dry and thin land based on the morphological characteristics, yield, and lodging resistance of the plant at various growth stages. Canggu 6 not only had high and stable yield, but also was a foxtail millet variety resistant to low nitrogen stress.

Key words: Dry and thin land, Summer-sown foxtail millet, Nitrogen fertilizer, Reasonable application rate

Liu Yanli, Ping Wenchao, Zhou Lulu, Zhang Lixin, Xie Xinyu, Wang Wei, Tian Bohong. Study on Reasonable Application Amount of Nitrogen Fertilizer and Nitrogen Absorption Parameters of Summer-Sown Foxtail Millet in Dry and Thin Land[J].Crops, 2025, 41(2): 249-255.

Figures/Tables 9

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References 24

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生长期 Growth stage	处理 Treatment	株高 Plant height (cm)	叶绿素含量 Chlorophyll content	叶鲜重 Leaf fresh weight (g)	叶干重 Leaf dry weight (g)	茎鲜重 Stem fresh weight (g)	茎干重 Stem dry weight (g)	单株鲜重 Fresh weight per plant (g)	穗鲜重 Panicle fresh weight (g)	穗干重 Panicle dry weight (g)
拔节期 Jointing	N0	48.60b	32.12b	1.47b	0.35b	2.03b	0.33a	3.52b	－	－
拔节期 Jointing	N1	53.99ab	38.47a	1.84ab	0.44ab	2.67ab	0.29a	4.55ab	－	－
	N2	59.38a	40.79a	2.88a	0.60a	3.82a	0.39a	6.81a	－	－
	N3	59.34a	40.79a	2.79a	0.60a	3.84a	0.50a	6.68a	－	－
孕穗期 Booting	N0	70.89b	40.35a	4.70b	1.07b	7.71b	1.12b	9.06b	－	－
孕穗期 Booting	N1	75.11ab	41.27a	5.35ab	1.19ab	9.05b	1.27ab	11.09ab	－	－
	N2	80.98a	47.79a	6.94a	1.50a	12.57a	1.69a	15.01a	－	－
	N3	77.54ab	67.15a	5.91ab	1.29ab	10.33ab	1.42ab	14.33a	－	－
抽穗期 Heading	N0	82.35b	46.24b	9.18b	3.05b	20.62b	5.77a	34.67b	4.87a	1.47b
抽穗期 Heading	N1	91.70a	51.52a	10.98ab	3.52ab	25.14ab	6.84a	42.64ab	5.88a	1.87a
	N2	91.08a	51.35a	11.77ab	3.64ab	26.37ab	6.72a	44.03ab	6.52a	1.64ab
	N3	92.89a	50.10ab	12.43a	4.05a	29.17a	7.30a	47.73a	6.14a	1.76ab
灌浆期 Filling	N0	98.03b	52.22a	10.55a	3.56a	21.49b	6.54a	48.58a	15.39a	7.43a
灌浆期 Filling	N1	102.10ab	56.02a	11.22a	3.86a	22.58a	7.03a	53.70a	16.90a	8.31a
	N2	106.30a	55.97a	12.59a	4.23a	28.30a	7.12a	58.18a	17.29a	8.31a
	N3	104.00ab	55.75a	11.99a	4.12a	26.58a	6.88a	54.74a	16.16a	7.82a
成熟期 Maturation	N0	100.70b	31.72b	6.24b	2.67c	18.74b	6.57c	43.74b	18.75b	13.30b
成熟期 Maturation	N1	104.90ab	37.21a	8.04ab	3.18bc	24.39a	7.91b	54.93a	22.49a	15.78ab
	N2	108.90a	39.60a	10.21a	3.72ab	23.88a	8.82a	59.24a	25.15a	17.70a
	N3	109.70a	40.25a	10.17a	3.91a	24.82a	9.08a	63.00a	24.82a	17.23a

品种 Variety	处理 Treatment	株高 Plant height (cm)	单株鲜重 Fresh weight per plant (g)	叶绿素含量 Chlorophyll content	叶干重 Leaf dry weight (g)	茎干重 Stem dry weight (g)	穗鲜重 Panicle fresh weight (g)	穗干重 Panicle dry weight (g)	千粒重 1000-seed weight (g)	产量 Yield (kg/667 m²)
豫谷18号 Yugu 18	N0	100.50a	50.12b	31.00b	3.02ab	7.36b	21.93b	15.75b	2.74a	319.1b
豫谷18号 Yugu 18	N1	101.20a	53.47b	40.33ab	2.92b	7.55b	23.25b	16.80b	2.80a	397.7a
	N2	103.00a	69.98a	41.05a	3.93a	9.88a	29.62a	21.13a	2.79a	417.8a
	N3	107.40a	56.17ab	37.26ab	3.38ab	7.55b	22.88b	16.33b	2.76a	401.4a
沧谷6号 Canggu 6	N0	101.70b	39.00b	34.05a	2.39a	5.61b	16.16b	10.98b	2.76a	323.8b
沧谷6号 Canggu 6	N1	104.60ab	58.18ab	38.67a	3.45a	8.19a	22.73ab	15.59ab	2.79a	441.2a
	N2	108.90ab	52.45ab	37.68a	3.34a	7.00ab	22.79ab	15.77ab	2.87a	455.7a
	N3	112.00a	62.02a	41.26a	3.72a	8.65a	25.45a	17.37a	2.89a	451.5a
沧谷7号 Canggu 7	N0	102.90b	41.55b	29.68c	2.67c	6.40c	17.74b	12.28d	2.91a	321.9b
沧谷7号 Canggu 7	N1	106.70ab	53.43b	36.11bc	3.05bc	7.08bc	21.67ab	14.43c	2.92a	394.2a
	N2	110.60a	57.65ab	39.15ab	4.06ab	9.78ab	25.85ab	17.94b	2.94a	456.2a
	N3	111.00a	73.88a	43.66a	4.82a	11.37a	27.64a	18.64a	2.95a	426.9a
沧谷8号 Canggu 8	N0	97.90b	44.28a	32.17a	2.59a	6.90a	19.19a	14.19c	2.88a	346.9b
沧谷8号 Canggu 8	N1	107.10a	54.62a	38.97a	3.32a	8.82a	22.31a	16.32a	2.94a	418.7ab
	N2	113.00a	56.89a	43.80a	3.55a	8.61a	22.34a	15.97b	2.96a	437.4a
	N3	108.30a	59.93a	42.02a	3.73a	8.74a	23.29a	16.63a	2.93a	411.7ab
平均Mean	N0	100.70b	43.74b	31.72b	2.67c	6.57c	18.75b	13.30b	2.82a	327.9c
	N1	104.90ab	54.93a	37.21a	3.18bc	7.91b	22.49a	15.78ab	2.87a	412.9b
	N2	108.90a	59.24a	39.60a	3.72ab	8.82a	25.15a	17.70a	2.89a	441.8a
	N3	109.70a	63.00a	40.25a	3.91a	9.08a	24.82a	17.23a	2.88a	422.9ab

品种 Variety	群体类型 Group type	产量指标 Indicator of output (kg/hm²)	统计数 Statistic	籽粒产量 Grain yield (kg/hm²)
豫谷18号 Yugu 18	高产型	>6000	4	6518.75
豫谷18号 Yugu 18	中产型	5250~6000	5	5737.24
	低产型	<5250	3	4210.74
沧谷6号 Canggu 6	高产型	>6000	8	6885.87
沧谷6号 Canggu 6	中产型	5250~6000	2	5505.54
	低产型	<5250	2	4573.91
沧谷7号 Canggu 7	高产型	>6000	7	6539.80
沧谷7号 Canggu 7	中产型	5250~6000	2	5816.08
	低产型	<5250	3	4828.31
沧谷8号 Canggu 8	高产型	>6000	6	6684.54
沧谷8号 Canggu 8	中产型	5250~6000	4	5671.34
	低产型	<5250	2	4937.09

品种 Variety	产量Yield (kg/hm²)			百公斤籽粒吸氮量Nitrogen uptake rate per 100 kg grain (kg)
品种 Variety	高产型High	中产型Medium	低产型Low	高产型High	中产型Medium	低产型Low
豫谷18号Yugu 18	6518.75a	5737.24b	4210.74c	3.35a	3.32a	2.79b
沧谷6号Canggu 6	6885.87a	5505.54b	4573.91c	3.49a	2.80b	2.82b
沧谷7号Canggu 7	6539.80a	5816.08ab	4828.31b	3.55a	2.48b	2.74b
沧谷8号Canggu 8	6684.54a	5671.34b	4937.09c	3.05a	3.26a	2.55b

品种 Variety	氮肥当季利用率 Nitrogen use efficiency in current season		差值 Difference
品种 Variety	高产型 High-productivity type	中产型 Medium-productivity type	差值 Difference
豫谷18号 Yugu 18	47.85a (26.88~74.93)	36.33b (24.96~50.26)	11.52
沧谷6号 Canggu 6	56.41a (38.68~85.69)	41.47b	14.94
沧谷7号 Canggu 7	50.38a (34.77~73.18)	45.94a (36.62~55.27)	4.44
沧谷8号 Canggu 8	53.52a (26.82~80.82)	40.61b (24.22~61.77)	12.91

Study on Reasonable Application Amount of Nitrogen Fertilizer and Nitrogen Absorption Parameters of Summer-Sown Foxtail Millet in Dry and Thin Land

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