Crops ›› 2017, Vol. 33 ›› Issue (3): 81-84.doi: 10.16035/j.issn.1001-7283.2017.03.015

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Differences in Forage Yield and Quality of Barley and Wheat with Proper Cutting Frequency

Chen Xiaodong1,2,Zhao Bin1,2,Ji Changhao1,2,Zhu Bin1,2,Wang Rui1,2   

  1. 1 Crop Research Institute,Anhui Academy of Agricultural Sciences,Hefei 230031,Anhui,China
    2 Anhui Key Laboratory of Crop Quality Improvement,Hefei 230031,Anhui,China
  • Received:2017-03-30 Revised:2017-04-28 Online:2017-06-15 Published:2018-08-26
  • Contact: Rui Wang

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Abstract:

To compare the differences in forage yield and quality between barley and wheat, and detect the optimal cutting frequency, two representative feed barley cultivars (95033 and Yanfeng No.1) and two wheat cultivars (Yangmai 18 and 1331) were imposed on three cutting frequencies. The results showed that barley forage yield exceeded that of wheat with the maximum of fresh weight (5.68kg/m 2) and dry weight (1.37kg/m 2) obtained in Yanfeng No.1. The maximum fresh weight (5.49kg/m 2) and dry weight (1.52kg/m 2) were obtained in once cutting and significantly higher than that with the twice and thrice cutting. The content of crude protein and calcium varied significantly but other properties did not among cultivars. The maximum content of protein and calcium were respectively in Yangmai 18 (29.23%) and 95033 (1.13%). Crude protein yield was higher in barley than in wheat, and in once cutting than in twice and thrice cutting. The content of crude protein, crude ash, calcium and phosphorus declined dramatically in later cuts while the content of crude fiber, acid detergent fiber and neutral detergent fiber increased, implying repeat cutting leads the descend of forage quality. Therefore, the yield of both biomass and nutrition was higher in barley than in wheat, which meant barley had priority in forage use. Once cutting is optimum for the harvest of forage in late milking stage.

Key words: Barley, Wheat, Forage yield, Forage quality, Cutting frequency

Table 1

Materials, cutting times and dates"

因素A
Factor A		 品种(系)
Variety (line)		 因素B
Factor B		 刈割次数
Cutting times		 茬次Cut 刈割日期
Cutting date
A1 95033 B1 1 - 2016-04-25
A2
 盐丰1号
Yanfeng No.1		 B2
 2
 第一茬
The first cut		 2016-01-18
A3
 扬麦18
Yangmai 18		 第二茬
The second cut		 2016-04-25
A4
 1331
 B3
 3
 第一茬
The first cut		 2016-01-18
第二茬
The second cut		 2016-03-18
第三茬
The third cut		 2016-04-25

Fig.1

Comparison in forage fresh and dry weight among varieties (lines) and cutting times"

Fig.2

Comparison in forage crude protein yield among varieties (lines) and cutting times"

Table 2

Comparison in forage quality among varieties (lines) %"

材料Material 粗蛋白
Crude protein		 粗纤维
Crude fiber		 酸性洗涤纤维
Acid detergent fiber		 中性洗涤纤维
Neutral detergent fiber		 粗灰分
Crude ash		 钙
Calcium		 磷
Phosphorus
95033 27.17ab 19.97a 23.07a 41.83a 12.60a 1.13a 0.39a
盐丰1号 Yanfeng No.1 23.10c 19.83a 22.03a 41.13a 13.40a 0.91b 0.40a
扬麦18 Yangmai 18 29.23a 20.27a 23.37a 43.97a 10.90a 0.96ab 0.45a
1311 25.80bc 20.10a 22.88a 44.30a 10.73a 0.78b 0.40a

Table 3

Comparison in individual forage quality among different cuts %"

茬次
Cut		 粗蛋白
Crude protein		 粗纤维
Crude fiber		 酸性洗涤纤维
Acid detergent fiber		 中性洗涤纤维
Neutral detergent fiber		 粗灰分
Crude ash		 钙
Calcium		 磷
Phosphorus
1 33.63a 12.58c 15.13c 32.43c 16.35a 1.36a 0.43a
2 30.65b 18.65b 20.61b 38.23b 11.23b 1.10b 0.47a
3 14.70c 28.90a 32.78a 57.78a 8.15c 0.37c 0.33b
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