Xinjiang Agricultural Sciences ›› 2024, Vol. 61 ›› Issue (7): 1793-1804.DOI: 10.6048/j.issn.1001-4330.2024.07.028
• Prataculture·Agricultural Equipment Engineering and Mechanization·Animal Husbandry Veteri-narian • Previous Articles Next Articles
MA Yong1(), LIU Hui1,2(
), GAO Hhongmei1, KANG Xue1, MA Chunhui1
Received:
2023-12-05
Online:
2024-07-20
Published:
2024-09-04
Correspondence author:
LIU Hui
Supported by:
马勇1(), 刘慧1,2(
), 高红梅1, 康雪1, 马春晖1
通讯作者:
刘慧
作者简介:
马勇(1998-),男,新疆伊宁人,硕士研究生,研究方向为饲草加工与生产,(E-mail)1435995281@qq.com
基金资助:
CLC Number:
MA Yong, LIU Hui, GAO Hhongmei, KANG Xue, MA Chunhui. Effects of mixed seeding of alfalfa and perennial ryegrass on yield and nutritional quality under different nitrogen levels[J]. Xinjiang Agricultural Sciences, 2024, 61(7): 1793-1804.
马勇, 刘慧, 高红梅, 康雪, 马春晖. 不同氮素水平下紫花苜蓿与多年生黑麦草混播对其产量和营养品质的影响[J]. 新疆农业科学, 2024, 61(7): 1793-1804.
处理 Treatments | 播种方式 Sowing method | 氮素水平 Nitrogen level | 基肥 Basal fertilizer (kg/hm2) | 追肥 Nitrogen topdressing (kg /hm2) | 总施氮量 Total nitrogen application (kg /hm2) | 比例 Rate | 播种量 Seeding rate (kg/hm2) | ||
---|---|---|---|---|---|---|---|---|---|
分枝期 Branching | 现蕾期 Squaring | 豆科 Legumes | 禾本科 Grasses | ||||||
M | 紫花苜蓿 | N0 | 0 | 0 | 0 | 0 | - | 22.5 | - |
N1 | 20 | 20 | 0 | 40 | |||||
N2 | 20 | 30 | 0 | 50 | |||||
L | 多年生黑麦草 | N0 | 0 | 0 | 0 | 0 | - | - | 60 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M7+L3 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 7∶3 | 15.75 | 18 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M6+L4 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 6∶4 | 13.5 | 24 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M5+L5 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 5∶5 | 11.25 | 50 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M4+L6 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 4∶6 | 9 | 36 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M3+L7 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 3∶7 | 6.75 | 42 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 |
Tab.1 The amount of sowing and nitrogen application in the experimental plot
处理 Treatments | 播种方式 Sowing method | 氮素水平 Nitrogen level | 基肥 Basal fertilizer (kg/hm2) | 追肥 Nitrogen topdressing (kg /hm2) | 总施氮量 Total nitrogen application (kg /hm2) | 比例 Rate | 播种量 Seeding rate (kg/hm2) | ||
---|---|---|---|---|---|---|---|---|---|
分枝期 Branching | 现蕾期 Squaring | 豆科 Legumes | 禾本科 Grasses | ||||||
M | 紫花苜蓿 | N0 | 0 | 0 | 0 | 0 | - | 22.5 | - |
N1 | 20 | 20 | 0 | 40 | |||||
N2 | 20 | 30 | 0 | 50 | |||||
L | 多年生黑麦草 | N0 | 0 | 0 | 0 | 0 | - | - | 60 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M7+L3 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 7∶3 | 15.75 | 18 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M6+L4 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 6∶4 | 13.5 | 24 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M5+L5 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 5∶5 | 11.25 | 50 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M4+L6 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 4∶6 | 9 | 36 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 | |||||
M3+L7 | 紫花苜蓿+多年黑麦草 | N0 | 0 | 0 | 0 | 0 | 3∶7 | 6.75 | 42 |
N1 | 20 | 20 | 60 | 100 | |||||
N2 | 20 | 30 | 50 | 100 |
处理 Treatments | 粗蛋白 CP(%) | 干物质 DM(%) | 中性 洗涤纤维 NDF(%) | 酸性 洗涤纤维 ADF(%) | 饲料 相对价值 RFV | 总可 消化养分 TND | 单位面积 CP产量 (unit area)CP (%) | |
---|---|---|---|---|---|---|---|---|
N0 | M | 20.27±0.01Cc | 23.35±0.01Bc | 35.31±0.01Ab | 22.79±0.01Aab | 144.54±7.0Ab | 71.12±0.37Bc | 68.97±4.72Bb |
L | 17.65±0.02Bd | 28.90±0.02Ba | 47.31±0.01Aa | 25.48±0.01Aa | 132.59±4.41Ac | 71.19±0.94Bc | 25.80±4.61Cc | |
M7+L3 | 24.21±0.12Ba | 27.59±0.01Bb | 31.92±0.02Ac | 20.27±0.12Ac | 151.13±5.31Aa | 74.49±1.50Bb | 115.71±9.25Ba | |
M6+L4 | 22.32±0.01Bb | 24.98±0.01Bbc | 33.78±0.01Ab | 23.71±0.02Aab | 150.57±5.98Aa | 71.16±1.14Bc | 82.01±2.23Cb | |
M5+L5 | 23.32±0.01Bab | 25.17±0.01Bbc | 28.09±0.01Bd | 17.95±0.01Bd | 154.40±6.00Aa | 75.95±0.75Bb | 81.53±8.09Bb | |
M4+L6 | 23.65±0.01Aab | 26.43±0.03Babc | 24.51±0.07Ce | 15.38±0.03Ce | 153.08±4.2Aa | 78.05±0.54Aa | 74.81±14.25Bb | |
M3+L7 | 22.33±0.02Ab | 23.79±0.01Bce | 27.45±0.01Cd | 15.47±0.01Ce | 153.65±3.91Aa | 78.22±0.95Aa | 87.52±7.31Bb | |
N1 | M | 25.05±0.01Ab | 27.63±0.01Ac | 30.47±0.03Bb | 19.43±0.02Ba | 145.24±9.73Ab | 75.43±0.76Ab | 119.52±1.49Ab |
L | 17.43±0.03Ad | 33.76±0.01Aa | 48.98±0.02Ba | 19.62±0.05Ba | 130.76±0.30Ab | 72.54±1.40Ac | 48.73±4.78Ac | |
M7+L3 | 26.39±0.05Aa | 27.39±0.03Bc | 30.61±0.02Bb | 18.96±0.02Bab | 151.02±3.11Aa | 75.94±0.91Ab | 164.49±7.12Aa | |
M6+L4 | 24.86±0.02Ac | 30.02±0.02Aa | 30.43±0.01Bb | 20.02±0.03Ba | 150.82±1.31Aa | 74.91±0.48Ab | 175.01±5.47Aa | |
M5+L5 | 26.05±0.01Aa | 25.31±0.02Bc | 26.03±0.03Cc | 15.34±0.04Cb | 154.00±1.78Aa | 78.07±0.70Aa | 168.03±12.21Aa | |
M4+L6 | 22.44±0.03Ac | 19.29±0.03Cd | 29.33±0.02Bb | 18.08±0.02Bb | 152.90±7.36Aa | 74.99±0.66Bb | 112.92±9.31Ab | |
M3+L7 | 22.74±0.01Bc | 27.05±0.02Ac | 31.07±0.02Bb | 20.28±0.02Ba | 150.61±4.00Aa | 74.10±0.30Bbc | 116.01±8.62Ab | |
N2 | M | 23.06±0.01Bc | 27.86±0.01Abc | 27.65±0.02Bd | 18.64±0.01Bbc | 142.56±3.24Ab | 75.33±0.25Aab | 82.07±9.12Be |
L | 19.00±0.02Bf | 34.23±0.04Aa | 40.64±0.03Ba | 18.04±0.02Bbc | 136.49±3.29Ac | 74.32±0.19Ab | 48.19±8.06Bf | |
M7+L3 | 25.43±0.01Ba | 29.59±0.01Abc | 30.14±0.01Bc | 16.50±0.05Bc | 148.72±4.25Aab | 74.55±047Bb | 183.65±7.01Aa | |
M6+L4 | 22.00±0.03Bd | 28.95±0.02Abc | 29.33±0.01Bc | 19.19±0.01Babc | 150.18±3.91Aa | 74.52±1.04Ab | 121.01±4.43Bc | |
M5+L5 | 23.87±0.01Ab | 28.75±0.01Abc | 30.24±0.01Ac | 20.02±0.01Aabc | 148.12±3.14Aab | 77.83±4.38ABa | 141.85±9.98ABb | |
M4+L6 | 20.24±0.05Be | 31.69±0.01Aab | 35.10±0.01Ab | 23.55±0.03Aa | 152.02±4.77Aa | 70.53±0.90Cc | 106.19±9.99Ad | |
M3+L7 | 24.20±0.01Ab | 26.23±0.01Ac | 35.76±0.02Ab | 21.53±0.01Aab | 152.08±1.31Aa | 73.51±0.37Bbc | 101.03±1.25ABd |
Tab.2 Changes of mixed sowing of alfalfa + perennial ryegrass on nutritional quality under different nitrogen levels
处理 Treatments | 粗蛋白 CP(%) | 干物质 DM(%) | 中性 洗涤纤维 NDF(%) | 酸性 洗涤纤维 ADF(%) | 饲料 相对价值 RFV | 总可 消化养分 TND | 单位面积 CP产量 (unit area)CP (%) | |
---|---|---|---|---|---|---|---|---|
N0 | M | 20.27±0.01Cc | 23.35±0.01Bc | 35.31±0.01Ab | 22.79±0.01Aab | 144.54±7.0Ab | 71.12±0.37Bc | 68.97±4.72Bb |
L | 17.65±0.02Bd | 28.90±0.02Ba | 47.31±0.01Aa | 25.48±0.01Aa | 132.59±4.41Ac | 71.19±0.94Bc | 25.80±4.61Cc | |
M7+L3 | 24.21±0.12Ba | 27.59±0.01Bb | 31.92±0.02Ac | 20.27±0.12Ac | 151.13±5.31Aa | 74.49±1.50Bb | 115.71±9.25Ba | |
M6+L4 | 22.32±0.01Bb | 24.98±0.01Bbc | 33.78±0.01Ab | 23.71±0.02Aab | 150.57±5.98Aa | 71.16±1.14Bc | 82.01±2.23Cb | |
M5+L5 | 23.32±0.01Bab | 25.17±0.01Bbc | 28.09±0.01Bd | 17.95±0.01Bd | 154.40±6.00Aa | 75.95±0.75Bb | 81.53±8.09Bb | |
M4+L6 | 23.65±0.01Aab | 26.43±0.03Babc | 24.51±0.07Ce | 15.38±0.03Ce | 153.08±4.2Aa | 78.05±0.54Aa | 74.81±14.25Bb | |
M3+L7 | 22.33±0.02Ab | 23.79±0.01Bce | 27.45±0.01Cd | 15.47±0.01Ce | 153.65±3.91Aa | 78.22±0.95Aa | 87.52±7.31Bb | |
N1 | M | 25.05±0.01Ab | 27.63±0.01Ac | 30.47±0.03Bb | 19.43±0.02Ba | 145.24±9.73Ab | 75.43±0.76Ab | 119.52±1.49Ab |
L | 17.43±0.03Ad | 33.76±0.01Aa | 48.98±0.02Ba | 19.62±0.05Ba | 130.76±0.30Ab | 72.54±1.40Ac | 48.73±4.78Ac | |
M7+L3 | 26.39±0.05Aa | 27.39±0.03Bc | 30.61±0.02Bb | 18.96±0.02Bab | 151.02±3.11Aa | 75.94±0.91Ab | 164.49±7.12Aa | |
M6+L4 | 24.86±0.02Ac | 30.02±0.02Aa | 30.43±0.01Bb | 20.02±0.03Ba | 150.82±1.31Aa | 74.91±0.48Ab | 175.01±5.47Aa | |
M5+L5 | 26.05±0.01Aa | 25.31±0.02Bc | 26.03±0.03Cc | 15.34±0.04Cb | 154.00±1.78Aa | 78.07±0.70Aa | 168.03±12.21Aa | |
M4+L6 | 22.44±0.03Ac | 19.29±0.03Cd | 29.33±0.02Bb | 18.08±0.02Bb | 152.90±7.36Aa | 74.99±0.66Bb | 112.92±9.31Ab | |
M3+L7 | 22.74±0.01Bc | 27.05±0.02Ac | 31.07±0.02Bb | 20.28±0.02Ba | 150.61±4.00Aa | 74.10±0.30Bbc | 116.01±8.62Ab | |
N2 | M | 23.06±0.01Bc | 27.86±0.01Abc | 27.65±0.02Bd | 18.64±0.01Bbc | 142.56±3.24Ab | 75.33±0.25Aab | 82.07±9.12Be |
L | 19.00±0.02Bf | 34.23±0.04Aa | 40.64±0.03Ba | 18.04±0.02Bbc | 136.49±3.29Ac | 74.32±0.19Ab | 48.19±8.06Bf | |
M7+L3 | 25.43±0.01Ba | 29.59±0.01Abc | 30.14±0.01Bc | 16.50±0.05Bc | 148.72±4.25Aab | 74.55±047Bb | 183.65±7.01Aa | |
M6+L4 | 22.00±0.03Bd | 28.95±0.02Abc | 29.33±0.01Bc | 19.19±0.01Babc | 150.18±3.91Aa | 74.52±1.04Ab | 121.01±4.43Bc | |
M5+L5 | 23.87±0.01Ab | 28.75±0.01Abc | 30.24±0.01Ac | 20.02±0.01Aabc | 148.12±3.14Aab | 77.83±4.38ABa | 141.85±9.98ABb | |
M4+L6 | 20.24±0.05Be | 31.69±0.01Aab | 35.10±0.01Ab | 23.55±0.03Aa | 152.02±4.77Aa | 70.53±0.90Cc | 106.19±9.99Ad | |
M3+L7 | 24.20±0.01Ab | 26.23±0.01Ac | 35.76±0.02Ab | 21.53±0.01Aab | 152.08±1.31Aa | 73.51±0.37Bbc | 101.03±1.25ABd |
Fig.1 Compares hay yield of mixed sowing alfalfa + perennial ryegrass in different stubbles under different nitrogen levels Note : The annual hay yield is the sum of three crops
处理 Treatments | 土地当量比(LER) | ||
---|---|---|---|
N0 | N1 | N2 | |
M7+L3 | 1.60±0.23Ba | 1.67±0.36Ba | 1.92±0.33Aa |
M6+L4 | 1.08±0.06Cb | 1.36±0.11Bb | 1.61±0.11Aab |
M5+L5 | 1.55±0.24Aa | 1.61±0.41Aa | 1.72±0.28Aab |
M4+L6 | 1.24±0.17Aab | 1.44±0.48Aab | 1.36±0.10Ab |
M3+L7 | 1.23±0.19Aab | 1.38±0.42Aab | 1.40±0.10Ab |
Tab.3 Changes of mixed sowing of alfalfa + perennial ryegrass on land equivalent ratio under different nitrogen levels
处理 Treatments | 土地当量比(LER) | ||
---|---|---|---|
N0 | N1 | N2 | |
M7+L3 | 1.60±0.23Ba | 1.67±0.36Ba | 1.92±0.33Aa |
M6+L4 | 1.08±0.06Cb | 1.36±0.11Bb | 1.61±0.11Aab |
M5+L5 | 1.55±0.24Aa | 1.61±0.41Aa | 1.72±0.28Aab |
M4+L6 | 1.24±0.17Aab | 1.44±0.48Aab | 1.36±0.10Ab |
M3+L7 | 1.23±0.19Aab | 1.38±0.42Aab | 1.40±0.10Ab |
处理 Treatments | CP(叶) CP (leaves) | CP(茎) CP (stems) | 茎(DM) Stem (DM) | 叶(DM) Leaf (DM) | 吸氮量 Nitrogen uptake | 氮素利用率 Nitrogen utilization rate | 株高(豆) Plant height (Legumes) | 株高(禾) Plant height (Grasses) | |
---|---|---|---|---|---|---|---|---|---|
N0 | L | 13.41±0.21Bb | 7.47±0.21Be | 33.31±0.31Bb | 28.89±0.31Ca | 26.10±1.91Ba | 49.5±0.30Bc | 31.6±1.96Ab | |
M7+L3 | 14.96±0.10Ab | 9.37±0.31Bd | 27.96±0.31Ad | 22.58±0.32Ac | 9.38±2.08Cc | 56.7±2.08Aa | 42.3±2.41Aa | ||
M6+L4 | 14.54±0.12Bb | 10.58±0.21Bc | 35.41±0.25Aa | 27.22±0.36Aab | 12.01±1.26Bbc | 55.5±1.50Aa | 26.6±1.91Ac | ||
M5+L5 | 14.10±0.13Ab | 10.24±0.51Bc | 32.60±0.23Bb | 27.97±0.88Aab | 9.81±1.06Cc | 54.4±1.21Aab | 26.8±0.20Bc | ||
M4+L6 | 17.60±0.50Aa | 12.30±0.52Ab | 23.89±0.24Ce | 22.44±0.84Cc | 14.01±1.46Bb | 56.4±3.24Aa | 34.0±2.64Ab | ||
M3+L7 | 16.71±0.51Aa | 13.62±0.41Aa | 33.52±0.65Ab | 26.21±0.56Ab | 14.89±2.35Cb | 51.7±1.61Bbc | 30.7±1.52Ab | ||
N1 | L | 13.59±0.21Bc | 9.44±0.21Bc | 36.39±0.01Aa | 33.82±0.21Aa | 57.96±6.87Aa | 54.2±0.85Ac | 34.7±1.47Ac | |
M7+L3 | 15.03±0.05Abc | 7.76±0.24Cd | 23.08±0.56Bd | 20.26±0.11Bf | 23.23±2.14Ae | 13.89±0.21Ac | 57.7±3.86Aabc | 42.8±1.96Aa | |
M6+L4 | 18.39±0.13Aa | 12.36±0.10Aa | 23.65±0.85Bd | 21.76±0.23Be | 31.22±3.57Ace | 19.21±0.35Abc | 57.3±5.74Aabc | 28.8±1.36Ad | |
M5+L5 | 16.21±0.25Ab | 11.99±0.05Aa | 31.17±0.95Bc | 25.04±0.35Bd | 34.60±3.36Ac | 24.80±0.33Ab | 56.5±3.74Abc | 32.3±2.41Ac | |
M4+L6 | 15.35±0.63Bbc | 10.35±0.09Bb | 32.10±0.23Abc | 26.14±0.25Bc | 38.19±7.22Abc | 24.19±0.72Ab | 61.3±2.08Aab | 38.0±1.73Ab | |
M3+L7 | 15.16±0.23Bbc | 9.85±0.56Bbc | 32.55±0.87Bb | 27.31±0.25Ab | 44.62±1.24Ab | 29.62±0.12Aa | 63.2±0.72Aa | 33.2±1.05Ac | |
N2 | L | 14.91±0.25Ace | 9.95±0.58Ab | 33.10±0.25Ba | 29.61±0.35Ba | 53.42±7.38Aa | 50.1±0.90Bc | 33.7±1.13Abc | |
M7+L3 | 15.72±0.23Ac | 10.14±0.36Ae | 27.06±0.35Aa | 22.91±0.58Ad | 16.07±3.37Be | 6.73±0.35Be | 59.7±0.57Aab | 39.1±4.41Aa | |
M6+L4 | 18.65±0.35Aa | 12.03±0.58Af | 24.81±0.54Ba | 19.74±0.65Be | 29.30±3.87Ac | 17.29±0.38Bbc | 58.1±1.87Ab | 28.8±0.58Ac | |
M5+L5 | 15.27±0.23Ac | 9.06±0.56Ba | 35.92±0.56Aa | 26.99±0.98Cb | 21.79±2.01Be | 11.99±0.30Bce | 56.3±3.75Ab | 29.3±1.08ABc | |
M4+L6 | 16.98±0.35Ab | 12.14±0.65Ac | 31.39±0.58Ba | 29.18±0.58Aa | 32.20±2.56bAc | 18.20±0.25Bb | 59.5±1.80Aab | 34.7±3.40Aab | |
M3+L7 | 14.12±0.68Ce | 9.35±0.65Bd | 30.03±0.57Ca | 23.81±0.54Bc | 38.77±2.54b | 23.77±0.25Ba | 61.9±0.98Aa | 35.6±3.54Aab |
Tab.4 Changes of mixed sowing of alfalfa + perennial ryegrass on nitrogen utilization under different nitrogen utilization rate
处理 Treatments | CP(叶) CP (leaves) | CP(茎) CP (stems) | 茎(DM) Stem (DM) | 叶(DM) Leaf (DM) | 吸氮量 Nitrogen uptake | 氮素利用率 Nitrogen utilization rate | 株高(豆) Plant height (Legumes) | 株高(禾) Plant height (Grasses) | |
---|---|---|---|---|---|---|---|---|---|
N0 | L | 13.41±0.21Bb | 7.47±0.21Be | 33.31±0.31Bb | 28.89±0.31Ca | 26.10±1.91Ba | 49.5±0.30Bc | 31.6±1.96Ab | |
M7+L3 | 14.96±0.10Ab | 9.37±0.31Bd | 27.96±0.31Ad | 22.58±0.32Ac | 9.38±2.08Cc | 56.7±2.08Aa | 42.3±2.41Aa | ||
M6+L4 | 14.54±0.12Bb | 10.58±0.21Bc | 35.41±0.25Aa | 27.22±0.36Aab | 12.01±1.26Bbc | 55.5±1.50Aa | 26.6±1.91Ac | ||
M5+L5 | 14.10±0.13Ab | 10.24±0.51Bc | 32.60±0.23Bb | 27.97±0.88Aab | 9.81±1.06Cc | 54.4±1.21Aab | 26.8±0.20Bc | ||
M4+L6 | 17.60±0.50Aa | 12.30±0.52Ab | 23.89±0.24Ce | 22.44±0.84Cc | 14.01±1.46Bb | 56.4±3.24Aa | 34.0±2.64Ab | ||
M3+L7 | 16.71±0.51Aa | 13.62±0.41Aa | 33.52±0.65Ab | 26.21±0.56Ab | 14.89±2.35Cb | 51.7±1.61Bbc | 30.7±1.52Ab | ||
N1 | L | 13.59±0.21Bc | 9.44±0.21Bc | 36.39±0.01Aa | 33.82±0.21Aa | 57.96±6.87Aa | 54.2±0.85Ac | 34.7±1.47Ac | |
M7+L3 | 15.03±0.05Abc | 7.76±0.24Cd | 23.08±0.56Bd | 20.26±0.11Bf | 23.23±2.14Ae | 13.89±0.21Ac | 57.7±3.86Aabc | 42.8±1.96Aa | |
M6+L4 | 18.39±0.13Aa | 12.36±0.10Aa | 23.65±0.85Bd | 21.76±0.23Be | 31.22±3.57Ace | 19.21±0.35Abc | 57.3±5.74Aabc | 28.8±1.36Ad | |
M5+L5 | 16.21±0.25Ab | 11.99±0.05Aa | 31.17±0.95Bc | 25.04±0.35Bd | 34.60±3.36Ac | 24.80±0.33Ab | 56.5±3.74Abc | 32.3±2.41Ac | |
M4+L6 | 15.35±0.63Bbc | 10.35±0.09Bb | 32.10±0.23Abc | 26.14±0.25Bc | 38.19±7.22Abc | 24.19±0.72Ab | 61.3±2.08Aab | 38.0±1.73Ab | |
M3+L7 | 15.16±0.23Bbc | 9.85±0.56Bbc | 32.55±0.87Bb | 27.31±0.25Ab | 44.62±1.24Ab | 29.62±0.12Aa | 63.2±0.72Aa | 33.2±1.05Ac | |
N2 | L | 14.91±0.25Ace | 9.95±0.58Ab | 33.10±0.25Ba | 29.61±0.35Ba | 53.42±7.38Aa | 50.1±0.90Bc | 33.7±1.13Abc | |
M7+L3 | 15.72±0.23Ac | 10.14±0.36Ae | 27.06±0.35Aa | 22.91±0.58Ad | 16.07±3.37Be | 6.73±0.35Be | 59.7±0.57Aab | 39.1±4.41Aa | |
M6+L4 | 18.65±0.35Aa | 12.03±0.58Af | 24.81±0.54Ba | 19.74±0.65Be | 29.30±3.87Ac | 17.29±0.38Bbc | 58.1±1.87Ab | 28.8±0.58Ac | |
M5+L5 | 15.27±0.23Ac | 9.06±0.56Ba | 35.92±0.56Aa | 26.99±0.98Cb | 21.79±2.01Be | 11.99±0.30Bce | 56.3±3.75Ab | 29.3±1.08ABc | |
M4+L6 | 16.98±0.35Ab | 12.14±0.65Ac | 31.39±0.58Ba | 29.18±0.58Aa | 32.20±2.56bAc | 18.20±0.25Bb | 59.5±1.80Aab | 34.7±3.40Aab | |
M3+L7 | 14.12±0.68Ce | 9.35±0.65Bd | 30.03±0.57Ca | 23.81±0.54Bc | 38.77±2.54b | 23.77±0.25Ba | 61.9±0.98Aa | 35.6±3.54Aab |
指标 Indexes | 处理Treatments | ||
---|---|---|---|
混播比例 Mixture ratio | 氮素水平 Nitrogen level | 氮素水平* 混播比例 Nitrogen level *Mixture ratio | |
粗蛋白 CP(%) | 111.99** | 7.17** | 22.41** |
干物质 DM(%) | 10.83** | 31.28** | 12.44** |
中性洗涤纤维 NDF(%) | 163.66** | 0.21* | 23.51** |
酸性洗涤纤维 ADF(%) | 4.36** | 1.62* | 9.94** |
饲料相对价值 RFV(%) | 17.37** | 3.30 | 4.62** |
总可消化养分 TND(%) | 10.25** | 2.74 | 13.08** |
单位面积CP产量 (unit area)CP (%) | 18.12** | 23.81** | 1.78* |
叶 leaves CP(%) | 21.12** | 4.31 | 3.20 |
茎stems CP(%) | 15.41** | 6.42 | 19.52** |
叶 leaves DM(%) | 12.10** | 25.62** | 18.20** |
茎stems DM(%) | 11.52** | 8.78 | 24.10** |
吸氮量 nitrogen uptake | 16.52** | 25.62** | 7.42 |
氮素利用率 Nitrogen utilization rate(%) | 18.20** | 28.20** | 5.82 |
豆科株高 Legumes height plant height/cm | 25.42** | 11.46 | 3.18 |
禾本科株高 Plant height of Grasses/cm | 10.20* | 4.52 | 6.23 |
Tab.5 Changes of nitrogen level, mixed sowing ratio and nitrogen level * mixed sowing ratio interaction on alfalfa + perennial ryegrass
指标 Indexes | 处理Treatments | ||
---|---|---|---|
混播比例 Mixture ratio | 氮素水平 Nitrogen level | 氮素水平* 混播比例 Nitrogen level *Mixture ratio | |
粗蛋白 CP(%) | 111.99** | 7.17** | 22.41** |
干物质 DM(%) | 10.83** | 31.28** | 12.44** |
中性洗涤纤维 NDF(%) | 163.66** | 0.21* | 23.51** |
酸性洗涤纤维 ADF(%) | 4.36** | 1.62* | 9.94** |
饲料相对价值 RFV(%) | 17.37** | 3.30 | 4.62** |
总可消化养分 TND(%) | 10.25** | 2.74 | 13.08** |
单位面积CP产量 (unit area)CP (%) | 18.12** | 23.81** | 1.78* |
叶 leaves CP(%) | 21.12** | 4.31 | 3.20 |
茎stems CP(%) | 15.41** | 6.42 | 19.52** |
叶 leaves DM(%) | 12.10** | 25.62** | 18.20** |
茎stems DM(%) | 11.52** | 8.78 | 24.10** |
吸氮量 nitrogen uptake | 16.52** | 25.62** | 7.42 |
氮素利用率 Nitrogen utilization rate(%) | 18.20** | 28.20** | 5.82 |
豆科株高 Legumes height plant height/cm | 25.42** | 11.46 | 3.18 |
禾本科株高 Plant height of Grasses/cm | 10.20* | 4.52 | 6.23 |
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