
不同水氮处理对马铃薯土壤酶活性和产量的影响
王顺, 尹娟, 张海军, 王臣
不同水氮处理对马铃薯土壤酶活性和产量的影响
Effects of Different Water and Nitrogen Treatments on Soil Enzyme Activity and Yield of Potato
针对宁夏中部干旱地区农田土壤生态环境问题,研究了不同水氮处理对马铃薯土壤过氧化氢酶活性和土壤脲酶活性及产量的影响变化规律。研究结果表明:在马铃薯0~20 cm土层中,土壤过氧化氢酶活性和脲酶活性均随马铃薯生育期阶段的推进呈现出先升高后降低的变化趋势;在垂直方向上,随着土层深度的增加,土壤过氧化氢酶活性呈现逐渐降低的变化趋势,而土壤脲酶活性则呈升高的变化趋势;中水中氮(W2N2)有利于增加土壤酶活性,而低水高氮(W1N3)则不利于土壤酶活性的提高;中水中氮(W2N2)处理的马铃薯产量和商品薯率最高,分别为53 698.95 kg/hm2和96.4%;0~20 cm土层土壤过氧化氢酶活性与马铃薯产量呈极显著正相关,0~20 cm和20~40 cm土层土壤脲酶活性与马铃薯产量呈显著正相关。综合考虑,中水中氮(W2N2)为最佳的处理,有利于马铃薯产量、商品薯率的提高和土壤生态环境的改善。因此推荐W2N2处理(灌溉定额为1 500 m3/hm2,施氮量为210 kg/hm2)作为宁夏中部干旱地区马铃薯种植的水氮管理模式。
Aiming at the farmland soil eco-environmental problems in the arid area of central Ningxia, the effects of different water and nitrogen treatments on potato soil catalase activity, soil urease activity and yield were studied. The results of the study showed that in the 0~20 cm soil layer of potato, both the soil catalase activity and urease activity showed a trend of first increasing and then decreasing with the progress of the potato growth stage; in the vertical direction, with the increase of soil layer depth, soil catalase activity showed a decreasing trend, while soil urease activity showed an increasing trend. Middle water nitrogen (W2N2) was beneficial to increase soil enzyme activity, while low water high nitrogen (W1N3) was not conducive to the improvement of soil enzyme activity; the yield of potatoes and the rate of commercial potatoes treated with intermediate water nitrogen(W2N2) were the highest, which were 53 698.95 kg/hm2 and 96.4%, respectively; The soil catalase activity in 0~20 cm soil layer was significantly positively correlated with potato yield, and the soil urease activity of 0~20 cm and 20~40 cm soil layers was significantly positively correlated with potato yield. In conclusion, middle water nitrogen (W2N2) was the best treatment, which was conducive to the increase of potato production, the rate of commercial potatoes, and the improvement of soil ecological environment. Therefore, the W2N2 treatment (irrigation quota of 1 500 m3/hm2 and nitrogen application rate of 210 kg/hm2) is recommended as the water and nitrogen management mode for potato planting in the arid regions of central Ningxia.
马铃薯 / 水氮处理 / 水氮耦合 / 土壤酶 / 土壤过氧化氢酶活性 / 土壤脲酶活性 / 酶活性 / 产量 {{custom_keyword}} /
potato / water and nitrogen treatment / water and nitrogen coupling / soil enzyme / soil catalase activity / soil urease activity / enzyme activity / yield {{custom_keyword}} /
表1 土壤基础理化性质Tab.1 Physical and chemical properties of soil foundation |
pH值 | 有机质/(g▪kg-1) | 速效钾/(mg▪kg-1) | 全氮/(g▪kg-1) | 全磷/(g▪kg-1) | 全钾/(g▪kg-1) | 脲酶活性/(mg·g-1·d-1) | 过氧化氢酶活性/(mg·g-1·d-1) |
---|---|---|---|---|---|---|---|
8.190 | 12.100 | 133.000 | 0.690 | 0.770 | 20.400 | 0.215 | 0.471 |
表2 试验因素水平Tab.2 Test factor level |
水平 | 灌溉定额/(m3·hm-2) | 施氮量/(kg·hm-2) |
---|---|---|
1 | 900 | 120 |
2 | 1 500 | 210 |
3 | 2 100 | 300 |
表3 各生育期灌水、施氮比例 (%)Tab.3 Proportion distribution of irrigation and nitrogen application in each growth period |
生育期 | 芽条生长期 | 幼苗期 | 初花期 | 盛花期 | 成熟期 | 合计 |
---|---|---|---|---|---|---|
灌水量百分比 | 9 | 16(2次) | 25(3次) | 50(3次) | 0 | 100 |
施氮量百分比 | 0 | 20 | 40 | 40 | 0 | 100 |
施钾量百分比 | 30 | 0 | 30 | 40 | 0 | 100 |
表 4 不同水氮处理对马铃薯产量及商品薯率的影响Tab.4 Effect of different water and Nitrogen treatments on potato yield and commercial potato rate |
处理 | 产量/(kg·hm-²) | 商品薯率/% |
---|---|---|
W1N1 | 46 723.80cB | 91.58 |
W1N2 | 49 701.60abcAB | 91.09 |
W1N3 | 48 580.95bcAB | 90.39 |
W2N1 | 50 938.05abcAB | 93.33 |
W2N2 | 53 698.95aA | 96.39 |
W2N3 | 51 290.40abAB | 93.35 |
W3N1 | 49 212.30bcAB | 94.42 |
W3N2 | 51 763.95abAB | 93.00 |
W3N3 | 47 949.60bcAB | 93.24 |
CK | 40 236.90 | 84.87 |
表 5 马铃薯产量方差分析(固定模型)Tab.5 Potato yield analysis of variance (fixed model) |
类型 | 变异来源 | 平方和 | 自由度 | 均 方 | F 值 | P值 |
---|---|---|---|---|---|---|
产量 | 区组间 | 21 554.213 8 | 2 | 10 777.106 9 | 0.459 3 | 0.639 8 |
灌溉定额因素间 | 272 075.716 0 | 2 | 136 037.858 0 | 5.797 3 | 0.012 8 | |
施氮量因素间 | 183 041.777 6 | 2 | 91 520.888 8 | 3.900 2 | 0.041 7 | |
2因素互作 | 38 176.411 9 | 4 | 9 544.103 0 | 0.406 7 | 0.801 1 |
表 6 马铃薯土壤酶活性和产量的相关分析Tab.6 Correlation analysis of potato soil enzyme activity and yield |
项目 | 0~20 cm过氧化氢酶活性均值 | 20~40 cm过氧化氢酶酶活性均值 | 40~60 cm过氧化氢酶活性均值 | 0~20 cm脲酶活性均值 | 20~40 cm脲酶活性均值 | 40~60 cm脲酶活性均值 | 产量 |
---|---|---|---|---|---|---|---|
0~20 cm过氧化氢酶活性均值 | 1.00 | -0.08 | -0.24 | 0.41 | 0.33 | -0.23 | 0.78** |
20~40 cm过氧化氢酶活性均值 | -0.08 | 1.00 | 0.59 | 0.16 | -0.15 | 0.45 | -0.14 |
40~60 cm过氧化氢酶活性均值 | -0.24 | 0.59 | 1.00 | 0.16 | -0.11 | 0.08 | -0.09 |
0~20 cm脲酶活性均值 | 0.41 | 0.16 | 0.16 | 1.00 | 0.89** | 0.46 | 0.64* |
20~40 cm脲酶活性均值 | 0.33 | -0.15 | -0.11 | 0.89** | 1.00 | 0.35 | 0.71* |
40~60 cm脲酶活性均值 | -0.23 | 0.45 | 0.08 | 0.46 | 0.35 | 1.00 | -0.19 |
产量 | 0.78** | -0.14 | -0.09 | 0.64* | 0.71* | -0.19 | 1.00 |
1 |
杨贵羽,李烁阳,杨朝晖,等.宁夏面临的水资源问题及高质量发展对策[J].水利与建筑工程学报,2020,18(4):1-6.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
2 |
李文婷.马铃薯产量形成的源库关系及水氮对其的调控[D].陕西杨凌:中国科学院研究生院(教育部水土保持与生态环境研究中心),2016.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
3 |
朱同彬,诸葛玉平,刘少军,等.不同水肥条件对土壤酶活性的影响[J].山东农业科学,2008(3):74-78.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
4 |
孙慧,张建锋,胡颖,等.土壤过氧化氢酶对不同林分覆盖的响应[J].土壤通报,2016,47(3):605-610.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
5 |
夏敬源.抢抓机遇 乘势而上 大力示范推广水肥一体化技术[J].中国农技推广,2012,28(2):4-7.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
6 |
逯昀,刘毓侠.不同水肥管理对马铃薯土壤酶活性及产量的影响[J].河南农业科学,2017,46(8):57-60.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
7 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
8 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
9 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
10 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
11 |
李文证.宁夏旱区膜下滴灌水肥耦合对马铃薯产量及肥料利用率的影响[D].银川:宁夏大学,2017.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
12 |
金建新,何进勤,黄建成,等.宁夏中部干旱带不同灌水量对马铃薯生长、产量和品质的影响[J].西南农业学报,2020,33(5):935-940.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
13 |
巨晓棠,谷保静.我国农田氮肥施用现状、问题及趋势[J].植物营养与肥料学报,2014,20(4):783-795.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
14 |
黄继川,彭智平,于俊红,等.不同氮肥用量对冬种马铃薯产量、品质和氮肥利用率的影响[J].热带作物学报,2014,35(2):266-270.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
15 |
张炜,杨德桦,黄小箐,等.氮肥用量对襄阳地区马铃薯产量、品质和经济效益的影响[J].中国土壤与肥料,2016(1):72-76.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
16 |
关松荫.土壤酶及其研究方法[M].北京:农业出版社,1986.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
17 |
关松荫,沈桂琴,孟昭鹏,等.我国主要土壤剖面酶活性状况[J].土壤学报,1984(4):368-381.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
18 |
杨万勤,钟章成,陶建平,等.缙云山森林土壤酶活性与植物多样性的关系[J].林业科学,2001,37(4):124-128.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
19 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
20 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
21 |
王臣,尹娟,赵彦波,等.水氮调控对宁夏旱区马铃薯株高、叶绿素和产量的影响[J].节水灌溉,2020(5):49-55,61.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
22 |
商美新,房增国,梁斌,等.不同水氮处理对膜下滴灌马铃薯产量、品质及土壤硝态氮运移的影响[J].华北农学报,2019,34(6):118-125.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
23 |
刘凡,李援农,尹娟.不同水肥配合对马铃薯产量的影响[J].干旱地区农业研究,2014,32(3):108-113.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
24 |
屠娟丽,费伟英,张平.秸秆生物炭用量对马铃薯品质及土壤生化性质的影响[J].中国瓜菜,2019,32(12):41-44.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
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