新疆农业科学 ›› 2024, Vol. 61 ›› Issue (6): 1512-1526.DOI: 10.6048/j.issn.1001-4330.2024.06.026
孙萌(), 颜安(
), 李靖言, 卢前成, 范君, 孙哲, 袁以琳
收稿日期:
2023-10-19
出版日期:
2024-06-20
发布日期:
2024-08-08
通信作者:
颜安(1983-),男,四川资阳人,教授,博士,硕士生/博士生导师,研究方向为数字农业技术、农业资源与环境,(E-mail)zryanan@163.com作者简介:
孙萌(1996-),女,河南省信阳人,硕士研究生,研究方向为植物营养学,(E-mail)a850830920@qq.com
基金资助:
SUN Meng(), YAN An(
), LI Jingyan, LU Qiancheng, FAN Jun, SUN Zhe, YUAN Yilin
Received:
2023-10-19
Published:
2024-06-20
Online:
2024-08-08
Correspondence author:
YAN An (1983-), male, from Ziyang, Sichuan. Ph.D. professor and doctoral supervisor,research direction digital agricultural technology, agricultural resources and environment, ( E-mail) zryanan@163.comSupported by:
摘要:
【目的】研究不同水氮处理对紫花苜蓿生长发育、品质及水肥利用效率的影响,为科学制定适合新疆紫花苜蓿的水肥合理施用提供参考。【方法】采用大田试验,设置3种灌溉梯度,记作W1(3 750 m3/hm2)、W2(4 500 m3/hm2)、W3(5150 m3/hm2),5种施氮梯度,记作N0(0 kg/hm2)、N1(90 kg/hm2)、N2(150 kg/hm2)、N3(210 kg/hm2)、N4(270 kg/hm2),每个处理重复3次,分析不同水氮处理对紫花苜蓿生长、品质及水肥利用效率的影响。【结果】适宜的水氮处理能显著促进紫花苜蓿的生长发育与产量的提高,苜蓿的株高随施氮量的增加呈先增后减的趋势。水氮协同作用下以W2N3的产量最高。灌溉量、施氮量和水氮交互对紫花苜蓿粗蛋白、粗脂肪含量、中性洗涤纤维、酸性洗涤纤维、粗灰分具有显著影响。不同水氮处理对紫花苜蓿植株含氮量、氮吸收量、氮肥偏生产力、氮素利用率、氮肥农学效率及水分利用效率均有不同程度的影响,W2N3处理下综合得分均最高。【结论】不同水氮处理均对紫花苜蓿的生长发育、品质及水氮利用效率有一定影响,水氮处理组合W2N3(灌溉量4 500 m3/hm2、施氮量150 kg/hm2)效果最佳。
中图分类号:
孙萌, 颜安, 李靖言, 卢前成, 范君, 孙哲, 袁以琳. 不同水氮处理对紫花苜蓿生长发育、品质及水肥利用效率的影响[J]. 新疆农业科学, 2024, 61(6): 1512-1526.
SUN Meng, YAN An, LI Jingyan, LU Qiancheng, FAN Jun, SUN Zhe, YUAN Yilin. Effects of different water and nitrogen treatments on growth, quality and water and fertilizer use efficiency of alfalfa[J]. Xinjiang Agricultural Sciences, 2024, 61(6): 1512-1526.
处理 Treatments | 因素Factor | 灌溉量 Irrigation volume (m3/hm2) | 施氮量 (N-P-K) Nitrogen rate (kg/hm2) | |
---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | |||
W1N0 | W1 | N0 | 0-0-0 | |
W1N1 | N1 | 90-90-0 | ||
W1N2 | N2 | 3 750 | 150-90-0 | |
W1N3 | N3 | 210-90-0 | ||
W1N4 | N4 | 270-90-0 | ||
W2N0 | W2 | N0 | 0-0-0 | |
W2N1 | N1 | 90-90-0 | ||
W2N2 | N2 | 4 500 | 150-90-0 | |
W2N3 | N3 | 210-90-0 | ||
W2N4 | N4 | 270-90-0 | ||
W3N0 | W3 | N0 | 0-0-0 | |
W3N1 | N1 | 90-90-0 | ||
W3N2 | N2 | 5 150 | 150-90-0 | |
W3N3 | N3 | 210-90-0 | ||
W3N4 | N4 | 270-90-0 |
表1 水氮处理试验设计
Tab.1 Water and nitrogen treatment test design
处理 Treatments | 因素Factor | 灌溉量 Irrigation volume (m3/hm2) | 施氮量 (N-P-K) Nitrogen rate (kg/hm2) | |
---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | |||
W1N0 | W1 | N0 | 0-0-0 | |
W1N1 | N1 | 90-90-0 | ||
W1N2 | N2 | 3 750 | 150-90-0 | |
W1N3 | N3 | 210-90-0 | ||
W1N4 | N4 | 270-90-0 | ||
W2N0 | W2 | N0 | 0-0-0 | |
W2N1 | N1 | 90-90-0 | ||
W2N2 | N2 | 4 500 | 150-90-0 | |
W2N3 | N3 | 210-90-0 | ||
W2N4 | N4 | 270-90-0 | ||
W3N0 | W3 | N0 | 0-0-0 | |
W3N1 | N1 | 90-90-0 | ||
W3N2 | N2 | 5 150 | 150-90-0 | |
W3N3 | N3 | 210-90-0 | ||
W3N4 | N4 | 270-90-0 |
处理 Treatments | 因素Factor | 株高Plant height(cm) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 36.62±0.59e | 51.86±0.91h | 63.82±1.85efg | 65.18±1.42g | |||||
W1N1 | N1 | 41.28±0.88cd | 56.18±2.87g | 73.74±1.81abc | 75.48±0.95cd | |||||
W1N2 | W1 | N2 | 44.36±1.01ab | 62.06±1.13ef | 73.74±1.14abc | 75.02±1.99cd | ||||
W1N3 | N3 | 43.68±2.98bc | 64.66±2.70de | 74.36±0.88ab | 75.24±1.03cd | |||||
W1N4 | N4 | 42.66±1.30bc | 67.32±3.93bcd | 66.32±1.77d | 76.92±4.9c | |||||
W2N0 | N0 | 41.86±1.61bcd | 60.38±1.13f | 65.18±2.38de | 65.90±1.18g | |||||
W2N1 | N1 | 42.70±2.41bc | 61.36±0.66f | 72.26±2.01bc | 72.48±2.03de | |||||
W2N2 | W2 | N2 | 46.14±2.18a | 69.42±2.16b | 73.38±1.88abc | 81.94±0.85b | ||||
W2N3 | N3 | 46.48±1.25a | 71.94±2.21a | 74.86±1.21a | 86.82±3.99a | |||||
W2N4 | N4 | 42.14±2.06bcd | 68.48±2.53bc | 72.94±0.81abc | 81.60±0.69b | |||||
W3N0 | N0 | 39.68±0.68d | 62.82±1.36de | 64.46±2.60de | 69.00±2.28f | |||||
W3N1 | N1 | 41.26±2.73cd | 64.50±0.80de | 64.56±2.50de | 72.46±2.11de | |||||
W3N2 | W3 | N2 | 41.36±1.69cd | 71.56±1.15a | 71.94±1.31bc | 74.90±2.46cd | ||||
W3N3 | N3 | 43.04±1.66bc | 65.80±3.03cd | 66.44±1.73d | 76.58±2.258c | |||||
W3N4 | N4 | 41.82±1.49bcd | 64.92±1.67de | 62.26±1.22g | 70.88±2.29ef | |||||
显著性ANOVA Significance | ||||||||||
W | * | * | * | * | ||||||
N | * | * | * | * | ||||||
W×N | * | * | * | * |
表2 不同水氮处理下紫花苜蓿株高的变化
Tab.2 Changes of different water and nitrogen treatments on alfalfa plant height
处理 Treatments | 因素Factor | 株高Plant height(cm) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 36.62±0.59e | 51.86±0.91h | 63.82±1.85efg | 65.18±1.42g | |||||
W1N1 | N1 | 41.28±0.88cd | 56.18±2.87g | 73.74±1.81abc | 75.48±0.95cd | |||||
W1N2 | W1 | N2 | 44.36±1.01ab | 62.06±1.13ef | 73.74±1.14abc | 75.02±1.99cd | ||||
W1N3 | N3 | 43.68±2.98bc | 64.66±2.70de | 74.36±0.88ab | 75.24±1.03cd | |||||
W1N4 | N4 | 42.66±1.30bc | 67.32±3.93bcd | 66.32±1.77d | 76.92±4.9c | |||||
W2N0 | N0 | 41.86±1.61bcd | 60.38±1.13f | 65.18±2.38de | 65.90±1.18g | |||||
W2N1 | N1 | 42.70±2.41bc | 61.36±0.66f | 72.26±2.01bc | 72.48±2.03de | |||||
W2N2 | W2 | N2 | 46.14±2.18a | 69.42±2.16b | 73.38±1.88abc | 81.94±0.85b | ||||
W2N3 | N3 | 46.48±1.25a | 71.94±2.21a | 74.86±1.21a | 86.82±3.99a | |||||
W2N4 | N4 | 42.14±2.06bcd | 68.48±2.53bc | 72.94±0.81abc | 81.60±0.69b | |||||
W3N0 | N0 | 39.68±0.68d | 62.82±1.36de | 64.46±2.60de | 69.00±2.28f | |||||
W3N1 | N1 | 41.26±2.73cd | 64.50±0.80de | 64.56±2.50de | 72.46±2.11de | |||||
W3N2 | W3 | N2 | 41.36±1.69cd | 71.56±1.15a | 71.94±1.31bc | 74.90±2.46cd | ||||
W3N3 | N3 | 43.04±1.66bc | 65.80±3.03cd | 66.44±1.73d | 76.58±2.258c | |||||
W3N4 | N4 | 41.82±1.49bcd | 64.92±1.67de | 62.26±1.22g | 70.88±2.29ef | |||||
显著性ANOVA Significance | ||||||||||
W | * | * | * | * | ||||||
N | * | * | * | * | ||||||
W×N | * | * | * | * |
处理 Treatments | 因素 Factor | 茎粗 Stem diameter(mm) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 1.47±0.24d | 2.08±0.16g | 2.20±0.18e | 2.38±0.27fg | |||||
W1N1 | N1 | 2.16±0.10bc | 2.29±0.30efg | 2.55±0.40cde | 3.13±0.32abcd | |||||
W1N2 | W1 | N2 | 2.23±0.31abc | 2.51±0.11def | 2.53±0.22def | 3.26±0.69a | ||||
W1N3 | N3 | 2.26±0.41abc | 2.56±0.21def | 2.69±0.22bcde | 3.17±0.47abc | |||||
W1N4 | N4 | 2.55±0.35a | 2.81±0.26abcd | 3.22±0.53ab | 3.24±0.24a | |||||
W2N0 | N0 | 2.09±0.21bc | 2.23±0.25fg | 2.45±0.21e | 2.26±0.11fg | |||||
W2N1 | N1 | 1.96±0.59cd | 2.57±0.29cdef | 2.69±0.20cde | 2.87±0.49abc | |||||
W2N2 | W2 | N2 | 2.36±0.33abc | 2.67±0.40cde | 2.93±0.22abcd | 3.30±0.32a | ||||
W2N3 | N3 | 2.04±0.35bc | 2.92±0.33ab | 3.08±0.17abcd | 3.28±0.38a | |||||
W2N4 | N4 | 1.96±0.59cd | 3.05±0.30a | 3.08±0.55abc | 3.34±0.25a | |||||
W3N0 | N0 | 2.25±0.42abc | 2.39±0.15efg | 2.45±0.23e | 2.66±0.28fg | |||||
W3N1 | N1 | 2.04±0.27bc | 2.83±0.26bcde | 2.88±0.10abc | 3.21±0.40ab | |||||
W3N2 | W3 | N2 | 2.13±0.45bc | 2.52±0.30bcd | 2.91±0.20cde | 2.99±0.25abcd | ||||
W3N3 | N3 | 1.90±0.55cd | 2.61±0.34cde | 2.91±0.28cde | 3.13±0.07a | |||||
W3N4 | N4 | 2.09±0.52bc | 2.71±0.25bcde | 3.09±0.32a | 3.25±0.17ab | |||||
显著性ANOVA Significance | ||||||||||
W | ns | * | ns | * | ||||||
N | ns | * | * | * | ||||||
W×N | * | * | * | ns |
表3 不同水氮处理下紫花苜蓿茎粗的变化
Tab.3 Changes of different water-nitrogen treatment on stem thickness of alfalfa
处理 Treatments | 因素 Factor | 茎粗 Stem diameter(mm) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 1.47±0.24d | 2.08±0.16g | 2.20±0.18e | 2.38±0.27fg | |||||
W1N1 | N1 | 2.16±0.10bc | 2.29±0.30efg | 2.55±0.40cde | 3.13±0.32abcd | |||||
W1N2 | W1 | N2 | 2.23±0.31abc | 2.51±0.11def | 2.53±0.22def | 3.26±0.69a | ||||
W1N3 | N3 | 2.26±0.41abc | 2.56±0.21def | 2.69±0.22bcde | 3.17±0.47abc | |||||
W1N4 | N4 | 2.55±0.35a | 2.81±0.26abcd | 3.22±0.53ab | 3.24±0.24a | |||||
W2N0 | N0 | 2.09±0.21bc | 2.23±0.25fg | 2.45±0.21e | 2.26±0.11fg | |||||
W2N1 | N1 | 1.96±0.59cd | 2.57±0.29cdef | 2.69±0.20cde | 2.87±0.49abc | |||||
W2N2 | W2 | N2 | 2.36±0.33abc | 2.67±0.40cde | 2.93±0.22abcd | 3.30±0.32a | ||||
W2N3 | N3 | 2.04±0.35bc | 2.92±0.33ab | 3.08±0.17abcd | 3.28±0.38a | |||||
W2N4 | N4 | 1.96±0.59cd | 3.05±0.30a | 3.08±0.55abc | 3.34±0.25a | |||||
W3N0 | N0 | 2.25±0.42abc | 2.39±0.15efg | 2.45±0.23e | 2.66±0.28fg | |||||
W3N1 | N1 | 2.04±0.27bc | 2.83±0.26bcde | 2.88±0.10abc | 3.21±0.40ab | |||||
W3N2 | W3 | N2 | 2.13±0.45bc | 2.52±0.30bcd | 2.91±0.20cde | 2.99±0.25abcd | ||||
W3N3 | N3 | 1.90±0.55cd | 2.61±0.34cde | 2.91±0.28cde | 3.13±0.07a | |||||
W3N4 | N4 | 2.09±0.52bc | 2.71±0.25bcde | 3.09±0.32a | 3.25±0.17ab | |||||
显著性ANOVA Significance | ||||||||||
W | ns | * | ns | * | ||||||
N | ns | * | * | * | ||||||
W×N | * | * | * | ns |
处理 Treatments | 因素Factor | 一级分枝数(枝/株)Number of Primary branches | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 6.8±0.84ef | 8±0.71f | 9.8±1.10e | 11.8±0.84bcd | |||||
W1N1 | N1 | 7.2±1.30def | 8.4±1.67ef | 10.2±0.45cde | 11.2±1.10bcd | |||||
W1N2 | W1 | N2 | 6.6±0.89ef | 9.2±0.45def | 10.2±0.84cde | 13±1.87bcd | ||||
W1N3 | N3 | 8.2±0.84cde | 11.2±0.45ab | 11.8±1.10ab | 12.6±1.52bcd | |||||
W1N4 | N4 | 7.8±0.45def | 11.6±0.55a | 11.6±1.34abc | 11.8±0.45bcd | |||||
W2N0 | N0 | 6.2±0.84ef | 9.6±0.89cde | 10.4±0.89bcde | 11.8±1.30bcd | |||||
W2N1 | N1 | 10±1.00abc | 10.4±0.55abcd | 12±1.00a | 12±1.87bcd | |||||
W2N2 | W2 | N2 | 9.8±1.79abc | 10±1.58bcd | 12.2±0.45a | 12.2±2.17bcd | ||||
W2N3 | N3 | 10.8±1.79ab | 11.4±1.14ab | 11.4±1.34abcd | 16.4±1.67a | |||||
W2N4 | N4 | 9.6±0.55abcd | 10±0.00bcd | 12±1.23a | 16.8±1.10a | |||||
W3N0 | N0 | 9.2±1.10bcd | 10±1.73bcd | 9.6±9.60e | 10.8±0.84d | |||||
W3N1 | N1 | 9.2±1.79bcd | 10.6±1.14abcd | 10±1.23abcd | 11±0.71cd | |||||
W3N2 | W3 | N2 | 11.2±1.64a | 11.4±0.55ab | 11.4±0.55abcd | 13.2±1.64bc | ||||
W3N3 | N3 | 10.4±2.19ab | 10.8±0.84abc | 11.2±0.45abcd | 13.4±2.97b | |||||
W3N4 | N4 | 10.2±0.45ab | 11.2±1.30ab | 11.4±0.55abcd | 12.2±0.45bcd | |||||
显著性ANOVA Significance | ||||||||||
W | * | * | * | * | ||||||
N | * | * | * | * | ||||||
W×N | * | * | ns | * |
表4 不同水氮处理下紫花苜蓿一级分枝数的变化
Tab.4 Changes of different water and nitrogen treatment on the number of primary branches of alfalfa
处理 Treatments | 因素Factor | 一级分枝数(枝/株)Number of Primary branches | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 6.8±0.84ef | 8±0.71f | 9.8±1.10e | 11.8±0.84bcd | |||||
W1N1 | N1 | 7.2±1.30def | 8.4±1.67ef | 10.2±0.45cde | 11.2±1.10bcd | |||||
W1N2 | W1 | N2 | 6.6±0.89ef | 9.2±0.45def | 10.2±0.84cde | 13±1.87bcd | ||||
W1N3 | N3 | 8.2±0.84cde | 11.2±0.45ab | 11.8±1.10ab | 12.6±1.52bcd | |||||
W1N4 | N4 | 7.8±0.45def | 11.6±0.55a | 11.6±1.34abc | 11.8±0.45bcd | |||||
W2N0 | N0 | 6.2±0.84ef | 9.6±0.89cde | 10.4±0.89bcde | 11.8±1.30bcd | |||||
W2N1 | N1 | 10±1.00abc | 10.4±0.55abcd | 12±1.00a | 12±1.87bcd | |||||
W2N2 | W2 | N2 | 9.8±1.79abc | 10±1.58bcd | 12.2±0.45a | 12.2±2.17bcd | ||||
W2N3 | N3 | 10.8±1.79ab | 11.4±1.14ab | 11.4±1.34abcd | 16.4±1.67a | |||||
W2N4 | N4 | 9.6±0.55abcd | 10±0.00bcd | 12±1.23a | 16.8±1.10a | |||||
W3N0 | N0 | 9.2±1.10bcd | 10±1.73bcd | 9.6±9.60e | 10.8±0.84d | |||||
W3N1 | N1 | 9.2±1.79bcd | 10.6±1.14abcd | 10±1.23abcd | 11±0.71cd | |||||
W3N2 | W3 | N2 | 11.2±1.64a | 11.4±0.55ab | 11.4±0.55abcd | 13.2±1.64bc | ||||
W3N3 | N3 | 10.4±2.19ab | 10.8±0.84abc | 11.2±0.45abcd | 13.4±2.97b | |||||
W3N4 | N4 | 10.2±0.45ab | 11.2±1.30ab | 11.4±0.55abcd | 12.2±0.45bcd | |||||
显著性ANOVA Significance | ||||||||||
W | * | * | * | * | ||||||
N | * | * | * | * | ||||||
W×N | * | * | ns | * |
处理 Treatments | 因素Factor | 节数(节/株)Number of nodes | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 5.8±1.30e | 7.4±0.89e | 7.8±0.84f | 8.8±0.45f | |||||
W1N1 | N1 | 6.4±1.82cde | 8.4±0.55cde | 9.4±0.55bcde | 9.6±0.55def | |||||
W1N2 | W1 | N2 | 6±0.71de | 9.8±0.84ab | 9.2±0.84cde | 10.2±0.45cde | ||||
W1N3 | N3 | 7±0.71abcde | 10±1.00ab | 10±0.71abcd | 10.2±0.45cde | |||||
W1N4 | N4 | 5.8±0.84e | 10±0.00ab | 10.2±0.45abc | 11.6±0.55ab | |||||
W2N0 | N0 | 6.2±1.48de | 8±0.00e | 8.8±0.45e | 8.8±0.84f | |||||
W2N1 | N1 | 7.4±1.52abcde | 9.8±0.84ab | 10.4±0.89ab | 10.6±0.55bcd | |||||
W2N2 | W2 | N2 | 6.8±0.45bcde | 9.8±0.45ab | 10.8±0.45a | 11±1.00abc | ||||
W2N3 | N3 | 8.8±1.48a | 9.8±0.84ab | 10.6±0.89a | 11±1.00abc | |||||
W2N4 | N4 | 7.8±0.45abcd | 9.8±0.84ab | 9±0.00de | 9.4±0.55ef | |||||
W3N0 | N0 | 7±0.71abcde | 8.2±0.45de | 10±0.71abcd | 10.4±0.55cde | |||||
W3N1 | N1 | 7.2±0.45abcde | 9.4±1.14abc | 10.8±0.84a | 12±0.71a | |||||
W3N2 | W3 | N2 | 7.4±1.52abcde | 10.4±1.14a | 10.4±0.55ab | 11.6±0.55ab | ||||
W3N3 | N3 | 8.6±2.07ab | 9.2±0.84bcd | 9.8±1.30abcd | 11.6±1.82ab | |||||
W3N4 | N4 | 8.2±1.30abc | 8.4±0.89cde | 10.4±1.14ab | 10.6±0.89bcd | |||||
显著性ANOVA Significance | ||||||||||
W | * | ns | * | * | ||||||
N | * | * | * | * | ||||||
W×N | ns | * | * | * |
表5 不同水氮处理下紫花苜蓿节数变化
Tab.5 Changes of different water and nitrogen treatment on nodes of alfalfa
处理 Treatments | 因素Factor | 节数(节/株)Number of nodes | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
灌水梯度 Irrigation gradient | 氮水平 Nitrogen level | 分枝期 Branching stage | 孕蕾期 Embryonic stage | 现蕾期 Budding stage | 初花期 Primary florescence | |||||
W1N0 | N0 | 5.8±1.30e | 7.4±0.89e | 7.8±0.84f | 8.8±0.45f | |||||
W1N1 | N1 | 6.4±1.82cde | 8.4±0.55cde | 9.4±0.55bcde | 9.6±0.55def | |||||
W1N2 | W1 | N2 | 6±0.71de | 9.8±0.84ab | 9.2±0.84cde | 10.2±0.45cde | ||||
W1N3 | N3 | 7±0.71abcde | 10±1.00ab | 10±0.71abcd | 10.2±0.45cde | |||||
W1N4 | N4 | 5.8±0.84e | 10±0.00ab | 10.2±0.45abc | 11.6±0.55ab | |||||
W2N0 | N0 | 6.2±1.48de | 8±0.00e | 8.8±0.45e | 8.8±0.84f | |||||
W2N1 | N1 | 7.4±1.52abcde | 9.8±0.84ab | 10.4±0.89ab | 10.6±0.55bcd | |||||
W2N2 | W2 | N2 | 6.8±0.45bcde | 9.8±0.45ab | 10.8±0.45a | 11±1.00abc | ||||
W2N3 | N3 | 8.8±1.48a | 9.8±0.84ab | 10.6±0.89a | 11±1.00abc | |||||
W2N4 | N4 | 7.8±0.45abcd | 9.8±0.84ab | 9±0.00de | 9.4±0.55ef | |||||
W3N0 | N0 | 7±0.71abcde | 8.2±0.45de | 10±0.71abcd | 10.4±0.55cde | |||||
W3N1 | N1 | 7.2±0.45abcde | 9.4±1.14abc | 10.8±0.84a | 12±0.71a | |||||
W3N2 | W3 | N2 | 7.4±1.52abcde | 10.4±1.14a | 10.4±0.55ab | 11.6±0.55ab | ||||
W3N3 | N3 | 8.6±2.07ab | 9.2±0.84bcd | 9.8±1.30abcd | 11.6±1.82ab | |||||
W3N4 | N4 | 8.2±1.30abc | 8.4±0.89cde | 10.4±1.14ab | 10.6±0.89bcd | |||||
显著性ANOVA Significance | ||||||||||
W | * | ns | * | * | ||||||
N | * | * | * | * | ||||||
W×N | ns | * | * | * |
处理 Treatments | 粗蛋白CP Crude protein (%) | 粗脂肪 Crude fat (%) |
---|---|---|
W1 | 19.08±2.29b | 6.02±0.94b |
W2 | 20.12±2.16a | 6.37±1.00a |
W3 | 19.88±1.09a | 5.94±0.75b |
N0 | 17.79±1.79e | 5.33±0.36c |
N1 | 18.51±1.28d | 6.01±1.05b |
N2 | 21.67±1.29a | 6.37±0.86ab |
N3 | 20.66±0.98b | 6.56±0.90a |
N4 | 19.83±1.36c | 6.29±0.80ab |
方差(F值)variance | ||
W | 8.67** | 4.253* |
N | 44.058** | 11.264** |
W×N | 12.539** | 13.788** |
表6 不同水氮处理下紫花苜蓿粗蛋白和粗脂肪含量的变化
Tab.6 Changes of different water and nitrogen treatment on crude protein content and crude fat of alfalfa
处理 Treatments | 粗蛋白CP Crude protein (%) | 粗脂肪 Crude fat (%) |
---|---|---|
W1 | 19.08±2.29b | 6.02±0.94b |
W2 | 20.12±2.16a | 6.37±1.00a |
W3 | 19.88±1.09a | 5.94±0.75b |
N0 | 17.79±1.79e | 5.33±0.36c |
N1 | 18.51±1.28d | 6.01±1.05b |
N2 | 21.67±1.29a | 6.37±0.86ab |
N3 | 20.66±0.98b | 6.56±0.90a |
N4 | 19.83±1.36c | 6.29±0.80ab |
方差(F值)variance | ||
W | 8.67** | 4.253* |
N | 44.058** | 11.264** |
W×N | 12.539** | 13.788** |
图 2 不同水氮处理下紫花苜蓿粗蛋白、粗脂肪含量的变化 注:不同小写字母表示不同处理间差异显著(P<0.05)
Fig.2 Changes of crude protein and crude fat content of alfalfa under different water and nitrogen treatment Note:Different lowercase letters indicate significant differences between treatments(P<0.05)
处理 Treat- ments | 中性洗涤 纤维NDF Neutral detergent fiber (%) | 酸性洗涤 纤维ADF Acid detergent fiber(%) | 粗灰分Ash Crude Ash(%) |
---|---|---|---|
W1 | 46.18±1.67a | 32.43±1.75a | 13.87±1.28a |
W2 | 44.31±2.44b | 31.56±1.58b | 14.04±0.90a |
W3 | 43.97±1.44b | 30.73±1.87c | 12.74±1.41b |
N0 | 47.25±1.01a | 33.51±1.28a | 15.50±0.47a |
N1 | 46.16±1.53b | 32.30±1.22b | 13.11±0.95b |
N2 | 44.04±1.83c | 29.48±0.89d | 12.52±1.18c |
N3 | 42.91±1.39d | 30.16±1.16c | 13.41±0.96b |
N4 | 43.74±0.89c | 32.42±0.75b | 13.22±0.63b |
方差(F值)variance | |||
W | 50.008** | 26.766** | 60.442** |
N | 69.583** | 62.812** | 94.757** |
W×N | 6** | 3.863* | 12.108** |
表7 不同水氮处理下紫花苜蓿中性、酸性洗涤纤维及粗灰分含量的变化
Tab.7 Changes of different water nitrogen treatment on neutral and acidic detergent fiber and crude ash content of alfalfa
处理 Treat- ments | 中性洗涤 纤维NDF Neutral detergent fiber (%) | 酸性洗涤 纤维ADF Acid detergent fiber(%) | 粗灰分Ash Crude Ash(%) |
---|---|---|---|
W1 | 46.18±1.67a | 32.43±1.75a | 13.87±1.28a |
W2 | 44.31±2.44b | 31.56±1.58b | 14.04±0.90a |
W3 | 43.97±1.44b | 30.73±1.87c | 12.74±1.41b |
N0 | 47.25±1.01a | 33.51±1.28a | 15.50±0.47a |
N1 | 46.16±1.53b | 32.30±1.22b | 13.11±0.95b |
N2 | 44.04±1.83c | 29.48±0.89d | 12.52±1.18c |
N3 | 42.91±1.39d | 30.16±1.16c | 13.41±0.96b |
N4 | 43.74±0.89c | 32.42±0.75b | 13.22±0.63b |
方差(F值)variance | |||
W | 50.008** | 26.766** | 60.442** |
N | 69.583** | 62.812** | 94.757** |
W×N | 6** | 3.863* | 12.108** |
图3 不同水氮处理下紫花苜蓿中性、酸性洗涤纤维及粗灰分含量的变化
Fig.3 Changes neutral and acidic detergent fiber and crude ash content of alfalfa under different water nitrogen treatment
处理 Treat- ments | 干物质 消化率DDM Dry matter digestibility | 干物质采 食量DMI Dry matter intake | 相对饲喂 价值RFV Relative Feeding Value |
---|---|---|---|
W1 | 63.93±1.35c | 2.60±0.09b | 128.95±6.47c |
W2 | 64.60±1.22b | 2.72±0.15a | 136.07±9.66b |
W3 | 65.24±1.44a | 2.73±0.09a | 138.19±6.74a |
N0 | 63.10±0.98d | 2.54±0.05d | 124.26±4.42e |
N1 | 64.03±0.94c | 2.60±0.09c | 129.18±5.92d |
N2 | 66.20±0.68a | 2.73±0.11b | 140.04±6.46b |
N3 | 65.67±0.90b | 2.80±0.09a | 142.51±6.01a |
N4 | 63.94±0.58c | 2.74±0.06b | 136.01±3.54c |
方差(F值)Variance(F value) | |||
W | 26.687** | 49.201** | 66.19** |
N | 62.685** | 67.702** | 97.432** |
W×N | 3.864** | 6.247** | 6.979** |
表8 不同水氮处理下紫花苜蓿干物质消化率、采食量及相对饲喂价值的变化
Tab.8 Changes of different water nitrogen treatment on dry matter digestibility, feed intake and relative feeding value of alfalfa
处理 Treat- ments | 干物质 消化率DDM Dry matter digestibility | 干物质采 食量DMI Dry matter intake | 相对饲喂 价值RFV Relative Feeding Value |
---|---|---|---|
W1 | 63.93±1.35c | 2.60±0.09b | 128.95±6.47c |
W2 | 64.60±1.22b | 2.72±0.15a | 136.07±9.66b |
W3 | 65.24±1.44a | 2.73±0.09a | 138.19±6.74a |
N0 | 63.10±0.98d | 2.54±0.05d | 124.26±4.42e |
N1 | 64.03±0.94c | 2.60±0.09c | 129.18±5.92d |
N2 | 66.20±0.68a | 2.73±0.11b | 140.04±6.46b |
N3 | 65.67±0.90b | 2.80±0.09a | 142.51±6.01a |
N4 | 63.94±0.58c | 2.74±0.06b | 136.01±3.54c |
方差(F值)Variance(F value) | |||
W | 26.687** | 49.201** | 66.19** |
N | 62.685** | 67.702** | 97.432** |
W×N | 3.864** | 6.247** | 6.979** |
图4 不同水氮处理下紫花苜蓿干物质消化率、采食量及相对饲喂价值的变化
Fig.4 Changes of water and nitrogen treatment on dry matter digestibility, feed intake, and relative feeding value of alfalfa
处理 Treatments | 植株氮含量 Plant nitrogen content (g/kg2) | 氮吸收量 Nitrogen uptake (kg/hm2) |
---|---|---|
W1 | 2.85±0.42b | 125.34±5.00c |
W2 | 3.17±0.33a | 201.15±45.75b |
W3 | 3.18±0.19a | 278.82±67.74a |
N0 | 2.81±0.42c | 171.79±36.76c |
N1 | 2.87±0.23c | 225.16±28.99b |
N2 | 3.13±0.35b | 269.97±54.60a |
N3 | 3.24±0.20b | 282.15±69.06a |
N4 | 3.29±0.29a | 250.70±24.05b |
方差(F值)Variance(F value) | ||
W | 38.574** | 99.322** |
N | 31.656** | 75.687** |
W×N | 22.016** | 17.613** |
表9 水氮处理对紫花苜蓿植株氮含量、氮素吸收量的影响
Tab.9 Effect of water nitrogen treatment on nitrogen content and nitrogen uptake of alfalfa plants
处理 Treatments | 植株氮含量 Plant nitrogen content (g/kg2) | 氮吸收量 Nitrogen uptake (kg/hm2) |
---|---|---|
W1 | 2.85±0.42b | 125.34±5.00c |
W2 | 3.17±0.33a | 201.15±45.75b |
W3 | 3.18±0.19a | 278.82±67.74a |
N0 | 2.81±0.42c | 171.79±36.76c |
N1 | 2.87±0.23c | 225.16±28.99b |
N2 | 3.13±0.35b | 269.97±54.60a |
N3 | 3.24±0.20b | 282.15±69.06a |
N4 | 3.29±0.29a | 250.70±24.05b |
方差(F值)Variance(F value) | ||
W | 38.574** | 99.322** |
N | 31.656** | 75.687** |
W×N | 22.016** | 17.613** |
处理 Treatments | 氮肥偏生产力 Nitrogen fertilizer bias productivity (kg/kg) | 氮肥利用率 Nitrogen fertilizer utilization (%) | 氮素农学效率 Nitrogen Agronomic Efficiency (kg/kg) | 水分利用效率 Water use efficiency (%) |
---|---|---|---|---|
W1 | 50.39±23.38b | 46.61±7.71b | 15.35±7.79a | 1.87±0.29a |
W2 | 57.74±21.09a | 48.76±9.59a | 13.72±4.51ab | 1.93±0.31a |
W3 | 51.42±22.52b | 33.98±16.06c | 12.63±5.77b | 1.46±0.16b |
N0 | - | - | - | 1.37±0.14c |
N1 | 85.51±2.35a | 43.32±6.84b | 20.88±5.70a | 1.78±0.29b |
N2 | 56.98±6.39b | 52.10±2.62a | 15.58±2.57b | 1.93±0.21a |
N3 | 41.03±7.42c | 43.90±18.61b | 11.83±3.37c | 1.96±0.41a |
N4 | 29.22±1.51d | 33.16±12.31d | 7.30±0.60d | 1.73±0.20b |
方差(F值)Variance(F value) | ||||
W | 57.752** | 201.756** | 4.904* | 131.62** |
N | 1 624.246** | 142.693** | 65.082** | 67.56** |
W×N | 18.802** | 122.582** | 9.131** | 8.96** |
表10 不同水氮处理下紫花苜蓿水氮利用方差的变化
Tab.10 Changes of variance in nitrogen fertilizer utilization of alfalfa under different water and nitrogen treatment
处理 Treatments | 氮肥偏生产力 Nitrogen fertilizer bias productivity (kg/kg) | 氮肥利用率 Nitrogen fertilizer utilization (%) | 氮素农学效率 Nitrogen Agronomic Efficiency (kg/kg) | 水分利用效率 Water use efficiency (%) |
---|---|---|---|---|
W1 | 50.39±23.38b | 46.61±7.71b | 15.35±7.79a | 1.87±0.29a |
W2 | 57.74±21.09a | 48.76±9.59a | 13.72±4.51ab | 1.93±0.31a |
W3 | 51.42±22.52b | 33.98±16.06c | 12.63±5.77b | 1.46±0.16b |
N0 | - | - | - | 1.37±0.14c |
N1 | 85.51±2.35a | 43.32±6.84b | 20.88±5.70a | 1.78±0.29b |
N2 | 56.98±6.39b | 52.10±2.62a | 15.58±2.57b | 1.93±0.21a |
N3 | 41.03±7.42c | 43.90±18.61b | 11.83±3.37c | 1.96±0.41a |
N4 | 29.22±1.51d | 33.16±12.31d | 7.30±0.60d | 1.73±0.20b |
方差(F值)Variance(F value) | ||||
W | 57.752** | 201.756** | 4.904* | 131.62** |
N | 1 624.246** | 142.693** | 65.082** | 67.56** |
W×N | 18.802** | 122.582** | 9.131** | 8.96** |
图6 不同水氮处理下紫花苜蓿产量、品质与水肥利用效率相关性变化
Fig.6 Changes of yield, quality, and water and fertilizer utilization efficiency of alfalfa under different water and nitrogen treatment
项目 Projects | 特征值 Eigenvalue | 方差贡献率 Variance contribution rate(%) | 累积方差 贡献率 Cumulative variance contribution rate(%) |
---|---|---|---|
主成分1 Principal component 1 | 5.138 | 46.711 | 46.711 |
主成分2 Principal component 2 | 4.169 | 37.904 | 84.616 |
表11 主成分分析的特征值与方差贡献率
Tab.11 Eigenvalues and variance contribution rates of principal component analysis
项目 Projects | 特征值 Eigenvalue | 方差贡献率 Variance contribution rate(%) | 累积方差 贡献率 Cumulative variance contribution rate(%) |
---|---|---|---|
主成分1 Principal component 1 | 5.138 | 46.711 | 46.711 |
主成分2 Principal component 2 | 4.169 | 37.904 | 84.616 |
指标 Indicators | 主成分1 Main component 1 | 主成分2 Principal Component 2 | ||
---|---|---|---|---|
载荷 Load value | 特征向量 Eigenvector | 载荷值 Load value | 特征向量 Eigenvector | |
产量(X1)Capacity | 0.723 | 0.319 | 0.469 | 0.230 |
粗蛋白(X2)Crude protein | 0.794 | 0.350 | 0.436 | 0.214 |
粗脂肪(X3)Crude fat | 0.904 | 0.399 | -0.039 | -0.019 |
中性洗涤纤维(X4)Neutral detergent fiber | -0.705 | -0.311 | -0.625 | -0.306 |
酸性洗涤纤维(X5)Acid detergent fiber | -0.448 | -0.198 | -0.823 | -0.403 |
粗灰分(X6)Crude Ash | 0.015 | 0.007 | -0.896 | -0.439 |
干物质消化率(X7)Dry matter digestibility | 0.448 | 0.198 | 0.823 | 0.403 |
干物质采食量(X8)Dry matter intake | 0.702 | 0.310 | 0.619 | 0.303 |
相对饲喂价值(X9)Relative Feeding Value | 0.655 | 0.289 | 0.73 | 0.358 |
植株含氮量(X10)Plant nitrogen content | 0.847 | 0.374 | 0.284 | 0.139 |
氮吸收量(X11)Nitrogen uptake | 0.794 | 0.350 | 0.465 | 0.228 |
表12 主成分分析的载荷值与特征向量
Tab.12 Load values and eigenvectors for principal component analysis
指标 Indicators | 主成分1 Main component 1 | 主成分2 Principal Component 2 | ||
---|---|---|---|---|
载荷 Load value | 特征向量 Eigenvector | 载荷值 Load value | 特征向量 Eigenvector | |
产量(X1)Capacity | 0.723 | 0.319 | 0.469 | 0.230 |
粗蛋白(X2)Crude protein | 0.794 | 0.350 | 0.436 | 0.214 |
粗脂肪(X3)Crude fat | 0.904 | 0.399 | -0.039 | -0.019 |
中性洗涤纤维(X4)Neutral detergent fiber | -0.705 | -0.311 | -0.625 | -0.306 |
酸性洗涤纤维(X5)Acid detergent fiber | -0.448 | -0.198 | -0.823 | -0.403 |
粗灰分(X6)Crude Ash | 0.015 | 0.007 | -0.896 | -0.439 |
干物质消化率(X7)Dry matter digestibility | 0.448 | 0.198 | 0.823 | 0.403 |
干物质采食量(X8)Dry matter intake | 0.702 | 0.310 | 0.619 | 0.303 |
相对饲喂价值(X9)Relative Feeding Value | 0.655 | 0.289 | 0.73 | 0.358 |
植株含氮量(X10)Plant nitrogen content | 0.847 | 0.374 | 0.284 | 0.139 |
氮吸收量(X11)Nitrogen uptake | 0.794 | 0.350 | 0.465 | 0.228 |
处理 Treatment | 第1主成 分得F1 1st principal component score | 第2主成 分得F2 2nd principal component score | 综合得分F Composite score | 排序 Ranking |
---|---|---|---|---|
W1N0 | -1.31 | -1.51 | -118.33 | 15 |
W1N1 | -0.78 | -1.15 | -79.85 | 13 |
W1N2 | -1.45 | -0.04 | -68.93 | 9 |
W1N3 | -0.37 | -0.49 | -36.06 | 8 |
W1N4 | 0.38 | -1.09 | -23.36 | 7 |
W2N0 | -0.63 | 0.37 | -15.65 | 14 |
W2N1 | -1.00 | 0.83 | -15.20 | 12 |
W2N2 | 0.58 | -0.46 | 9.79 | 2 |
W2N3 | 1.02 | -0.87 | 14.84 | 1 |
W2N4 | 0.18 | 0.23 | 17.16 | 5 |
W3N0 | 0.66 | -0.01 | 30.49 | 11 |
W3N1 | -0.35 | 1.72 | 48.76 | 6 |
W3N2 | -0.33 | 2.02 | 61.33 | 3 |
W3N3 | 1.50 | 0.19 | 77.18 | 4 |
W3N4 | 1.88 | 0.26 | 97.85 | 10 |
表13 主成分得分、综合得分及排序
Tab.13 Principal component scores, comprehensive scores and ranking
处理 Treatment | 第1主成 分得F1 1st principal component score | 第2主成 分得F2 2nd principal component score | 综合得分F Composite score | 排序 Ranking |
---|---|---|---|---|
W1N0 | -1.31 | -1.51 | -118.33 | 15 |
W1N1 | -0.78 | -1.15 | -79.85 | 13 |
W1N2 | -1.45 | -0.04 | -68.93 | 9 |
W1N3 | -0.37 | -0.49 | -36.06 | 8 |
W1N4 | 0.38 | -1.09 | -23.36 | 7 |
W2N0 | -0.63 | 0.37 | -15.65 | 14 |
W2N1 | -1.00 | 0.83 | -15.20 | 12 |
W2N2 | 0.58 | -0.46 | 9.79 | 2 |
W2N3 | 1.02 | -0.87 | 14.84 | 1 |
W2N4 | 0.18 | 0.23 | 17.16 | 5 |
W3N0 | 0.66 | -0.01 | 30.49 | 11 |
W3N1 | -0.35 | 1.72 | 48.76 | 6 |
W3N2 | -0.33 | 2.02 | 61.33 | 3 |
W3N3 | 1.50 | 0.19 | 77.18 | 4 |
W3N4 | 1.88 | 0.26 | 97.85 | 10 |
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