浙江农业学报 ›› 2023, Vol. 35 ›› Issue (7): 1542-1549.DOI: 10.3969/j.issn.1004-1524.20221365
收稿日期:
2022-09-20
出版日期:
2023-07-25
发布日期:
2023-08-17
作者简介:
雷联(1967—),男,甘肃民乐人,学士,高级工程师,研究方向为农业节水灌溉。E-mail:10665558561@qq.com
基金资助:
Received:
2022-09-20
Online:
2023-07-25
Published:
2023-08-17
摘要:
为探寻不同生育期调亏灌溉对河西走廊绿洲灌区制种玉米产量和水分利用的影响,以充分灌溉(CK)为对照,设置轻度水分亏缺(占田间持水率的60%~70%)、中度水分亏缺(占田间持水率的50%~60%)2个调亏梯度,在制种玉米苗期和拔节期开展不同调亏梯度试验,共6个处理(含CK)。在每个生育期测定制种玉米的叶面积指数和干物质积累量,收获后测定制种玉米的产量及其构成要素。结果表明,苗期轻度调亏处理的产量、水分利用效率、灌溉水利用效率与CK无显著差异(P>0.05),而苗期中度调亏处理、拔节期轻度调亏处理、拔节期中度调亏处理、苗期中度+拔节期轻度调亏处理的产量较CK显著(P<0.05)降低7.07%~23.90%。从提高产量和水分利用效率方面考虑,苗期轻度水分亏缺的调亏方式,即苗期土壤含水量保持在田间持水量的60%~70%,其他生育期保持在70%~80%的方式可作为河西绿洲灌区适宜制种玉米的灌溉方式。
中图分类号:
雷联. 膜下滴灌调亏对制种玉米植株生长、产量和水分利用的影响[J]. 浙江农业学报, 2023, 35(7): 1542-1549.
LEI Lian. Effects of regulated deficit drip irrigation under film on plant growth, yield and water use of seed-producing maize[J]. Acta Agriculturae Zhejiangensis, 2023, 35(7): 1542-1549.
处理 Treatment | θ/% | ||||
---|---|---|---|---|---|
苗期 Seedling | 拔节期 Jointing | 吐丝期 Silking | 灌浆期 Pustulation | 成熟期 Maturity | |
C1 | 60~70 | 70~80 | 70~80 | 70~80 | 70~80 |
C2 | 50~60 | 70~80 | 70~80 | 70~80 | 70~80 |
C3 | 70~80 | 60~70 | 70~80 | 70~80 | 70~80 |
C4 | 70~80 | 50~60 | 70~80 | 70~80 | 70~80 |
C5 | 50~60 | 60~70 | 70~80 | 70~80 | 70~80 |
CK | 70~80 | 70~80 | 70~80 | 70~80 | 70~80 |
表1 试验设计
Table 1 Experimental design
处理 Treatment | θ/% | ||||
---|---|---|---|---|---|
苗期 Seedling | 拔节期 Jointing | 吐丝期 Silking | 灌浆期 Pustulation | 成熟期 Maturity | |
C1 | 60~70 | 70~80 | 70~80 | 70~80 | 70~80 |
C2 | 50~60 | 70~80 | 70~80 | 70~80 | 70~80 |
C3 | 70~80 | 60~70 | 70~80 | 70~80 | 70~80 |
C4 | 70~80 | 50~60 | 70~80 | 70~80 | 70~80 |
C5 | 50~60 | 60~70 | 70~80 | 70~80 | 70~80 |
CK | 70~80 | 70~80 | 70~80 | 70~80 | 70~80 |
图1 调亏灌溉对制种玉米叶面积指数的影响 同列的多重比较结果中无相同字母的表示同一生育期处理间差异显著(P<0.05)。
Fig.1 Effects of regulated deficit irrigation on leaf area index of maize No same letters in the multiple comparison results in the same column indicates significant (P<0.05) difference within treatments at the same growth period.
图2 调亏灌溉对制种玉米干物质积累量的影响 柱上无相同字母的表示同一生育期处理间差异显著(P<0.05)。
Fig.2 Effect of regulated deficit irrigation on dry matter accumulation of maize Bars marked without the same letters indicate significant (P<0.05) difference within treatments at the same growth period.
处理 Treatment | 回归方程 Regression equation | R2 | 最大生长速率 的出现时间 Time when rea- ching maximum growth rate/d |
---|---|---|---|
C1 | Y=1 411.733/(1+e4.693-0.040t) | 0.999 | 117.33 |
C2 | Y=1 371.785/(1+e4.767-0.041t) | 0.999 | 116.27 |
C3 | Y=1 376.125/(1+e4.765-0.041t) | 0.999 | 116.22 |
C4 | Y=1 341.141/(1+e4.831-0.041t) | 0.999 | 117.83 |
C5 | Y=1 380.160/(1+e4.744-0.041t) | 0.997 | 115.71 |
CK | Y=1 426.173/(1+e4.708-0.040t) | 0.999 | 117.70 |
表2 不同调亏处理下制种玉米干物质积累的Logistic方程回归分析
Table 2 Logistic equation regression analysis of dry matter accumulation of maize under different regulated deficit irrigation treatments
处理 Treatment | 回归方程 Regression equation | R2 | 最大生长速率 的出现时间 Time when rea- ching maximum growth rate/d |
---|---|---|---|
C1 | Y=1 411.733/(1+e4.693-0.040t) | 0.999 | 117.33 |
C2 | Y=1 371.785/(1+e4.767-0.041t) | 0.999 | 116.27 |
C3 | Y=1 376.125/(1+e4.765-0.041t) | 0.999 | 116.22 |
C4 | Y=1 341.141/(1+e4.831-0.041t) | 0.999 | 117.83 |
C5 | Y=1 380.160/(1+e4.744-0.041t) | 0.997 | 115.71 |
CK | Y=1 426.173/(1+e4.708-0.040t) | 0.999 | 117.70 |
处理 Treatment | 果穗长度 Cluster length/cm | 行粒数 Kernel number per row | 穗行数 Kernel rows | 穗粗 Spike diameter/mm | 穗重 Ear weight/g | 穗轴重 Cob weight/g | 产量 Yield/ (kg·hm-2) |
---|---|---|---|---|---|---|---|
C1 | 17.20±0.13 b | 28.5±0.5 a | 14.5±1.1 a | 40.07±0.20 a | 139.53±1.27 a | 14.54±0.35 a | 6 986.51±184.49 a |
C2 | 16.80±0.12 c | 26.0±1.1 b | 12.0±0.7 b | 38.77±0.22 bc | 134.87±0.42 c | 13.37±0.22 b | 6 183.51±176.40 bc |
C3 | 16.93±0.11 c | 27.5±1.3 a | 12.5±0.5 b | 39.31±0.12 b | 136.04±0.25 bc | 13.54±0.25 b | 6 303.11±108.48 b |
C4 | 16.55±0.15 d | 23.5±0.5 c | 10.5±0.3 c | 38.16±0.20 c | 132.44±0.81 d | 12.84±0.19 b | 5 984.55±161.44 c |
C5 | 16.05±0.19 e | 22.5±0.6 c | 10.0±0.7 c | 37.37±0.26 d | 130.25±0.42 d | 12.75±0.09 b | 5 161.43±194.94 d |
CK | 17.45±0.12 a | 28.0±0.9 a | 14.0±0.9 a | 40.37±0.17 a | 137.99±0.22 ab | 14.99±0.22 a | 6 782.56±133.00 a |
表3 调亏灌溉对制种玉米产量构成要素的影响
Table 3 Effects of regulated deficit irrigation on yield and its components of maize
处理 Treatment | 果穗长度 Cluster length/cm | 行粒数 Kernel number per row | 穗行数 Kernel rows | 穗粗 Spike diameter/mm | 穗重 Ear weight/g | 穗轴重 Cob weight/g | 产量 Yield/ (kg·hm-2) |
---|---|---|---|---|---|---|---|
C1 | 17.20±0.13 b | 28.5±0.5 a | 14.5±1.1 a | 40.07±0.20 a | 139.53±1.27 a | 14.54±0.35 a | 6 986.51±184.49 a |
C2 | 16.80±0.12 c | 26.0±1.1 b | 12.0±0.7 b | 38.77±0.22 bc | 134.87±0.42 c | 13.37±0.22 b | 6 183.51±176.40 bc |
C3 | 16.93±0.11 c | 27.5±1.3 a | 12.5±0.5 b | 39.31±0.12 b | 136.04±0.25 bc | 13.54±0.25 b | 6 303.11±108.48 b |
C4 | 16.55±0.15 d | 23.5±0.5 c | 10.5±0.3 c | 38.16±0.20 c | 132.44±0.81 d | 12.84±0.19 b | 5 984.55±161.44 c |
C5 | 16.05±0.19 e | 22.5±0.6 c | 10.0±0.7 c | 37.37±0.26 d | 130.25±0.42 d | 12.75±0.09 b | 5 161.43±194.94 d |
CK | 17.45±0.12 a | 28.0±0.9 a | 14.0±0.9 a | 40.37±0.17 a | 137.99±0.22 ab | 14.99±0.22 a | 6 782.56±133.00 a |
图3 调亏灌溉对制种玉米全生育期耗水量的影响 柱上无相同字母的表示处理间差异显著(P<0.05)。
Fig.3 Effects of regulated deficit irrigation on water consumption of maize during whole growth period Bars marked without the same letters indicate significant (P<0.05) difference within treatments.
处理 Treatment | 水分利用效率 Water use efficiency/ (kg·m-3) | 灌溉水利用效率 Irrigation water use efficiency/ (kg·m-3) | 耗水强度 Water consumption intensity/ (mm·d-1) |
---|---|---|---|
C1 | 1.59±0.05 a | 2.77±0.05 a | 2.94±0.07 ab |
C2 | 1.42±0.02 b | 2.49±0.05 b | 2.91±0.06 ab |
C3 | 1.45±0.01 b | 2.56±0.01 ab | 2.90±0.04 ab |
C4 | 1.40±0.03 bc | 2.49±0.04 b | 2.86±0.02 b |
C5 | 1.30±0.05 c | 2.45±0.09 b | 2.66±0.02 c |
CK | 1.50±0.03 ab | 2.58±0.09 ab | 3.01±0.08 a |
表4 调亏灌溉对制种玉米水分利用效率的影响
Table 4 Effects of regulated deficit irrigation on water use efficiency of maize
处理 Treatment | 水分利用效率 Water use efficiency/ (kg·m-3) | 灌溉水利用效率 Irrigation water use efficiency/ (kg·m-3) | 耗水强度 Water consumption intensity/ (mm·d-1) |
---|---|---|---|
C1 | 1.59±0.05 a | 2.77±0.05 a | 2.94±0.07 ab |
C2 | 1.42±0.02 b | 2.49±0.05 b | 2.91±0.06 ab |
C3 | 1.45±0.01 b | 2.56±0.01 ab | 2.90±0.04 ab |
C4 | 1.40±0.03 bc | 2.49±0.04 b | 2.86±0.02 b |
C5 | 1.30±0.05 c | 2.45±0.09 b | 2.66±0.02 c |
CK | 1.50±0.03 ab | 2.58±0.09 ab | 3.01±0.08 a |
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全文 593
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摘要 239
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