Characteristics of Soil Nutrients in Sediment Storage Dam Land with Different Silting Periods on Grain Yield of Maize

YING-YING XING; CHANG-LIANG DU; XIU-KANG WANG

doi:10.6937/TWC.202003/PP_68(1).0003

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P26 - 35

工程学 > 水利工程

DOI： 10.6937/TWC

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Characteristics of Soil Nutrients in Sediment Storage Dam Land with Different Silting Periods on Grain Yield of Maize

不同淤积期淤地坝地土壤养分特徵对玉米籽粒产量的影响

刑英英(YING-YING XING) ；杜常亮(CHANG-LIANG DU) ；王秀康(XIU-KANG WANG)

台湾水利； 68 卷 1 期 (2020 / 03 / 01) ， P26 - 35

英文 DOI： 10.6937/TWC.202003/PP_68(1).0003

Soil nitrate nitrogen ； Soil ammonium nitrogen ； Soil available nitrogen ； Soil available potassium ； Sediment storage dam ；土壤硝态氮；土壤铵氮；土壤速效氮；土壤有效钾；淤地坝

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摘要 │ 参考文献 (38) │ 国际计量

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Large-scale sediment collection in the Loess Plateau of China resulting in many sediment storage dams were built. However, the effects of soil nutrients on maize grain yield at different silting periods are still unknown. A combination of field investigation and data analysis were used to study the effects of soil nutrients in different silting periods on the variation of maize yield at the sediment storage dam lands. Four areas: (1) ordinary land (CK), (2) 5-year sediment storage dam land (T5), (3) 10-year sediment storage dam land (T10) and (4) 30-year sediment storage dam land (T30) were evaluated in soil nutrients and grain yield of maize. The highest grain yield was obtained in T5 treatment (7,413 kg ha^(-1)), which was 4%, 15% and 23% higher than that of T10, T30 and CK treatments, respectively. The soil pH value in the sediment storage dam land decreased with the increase of silting period. Averaged soil depth, the soil electrical conductivity increased successively under four treatments: CK ＜ T10 ＜ T30 ＜ T5. The highest value of soil organic matter was obtained in T5 treatment, which was 5%, 20.8% and 26.4% higher than that in T10, T30 and CK treatment, respectively. The soil organic matter increased in the order: CK ＜ T30 ＜ T10 ＜ T5. Similar results were found in soil nitrate nitrogen (N), ammonium N and available N, but the soil available potassium in four treatments increased in the order: T30 ＜ T10 ＜ T5 ＜ CK. The available potassium content in the whole layer of soil was significantly different. The highest value of soil available phosphorus was obtained in T5, which was 16.2%, 19.1% and 29.6% higher than that in CK, T10 and T30 treatment, respectively. We recommend taking some measures to prevent the decline of soil organic matter content in sediment storage dam land. In particular, the precise potassium and phosphate fertilizer application management on sediment storage dam land is necessary in future practices. The results of this study facilitate the understanding of soil nutrients in sediment storage dam land with different silting period and provide effective strategies to prevent the soil nutrient reduction.

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参考文献 ( 38 ) 〈TOP〉

Ayuke, F. O.,Brussaard, L.,Vanlauwe, B.,Six, J.,Lelei, D. K.,Kibunja, C. N.,Pulleman, M. M.(2011).Soil fertility management: Impacts on soil macrofauna, soil aggregation and soil organic matter allocation.Applied Soil Ecology,48,53-62.
Bai, J.,Ouyang, H.,Deng, W.,Zhu, Y.,Zhang, X.,Wang, Q.(2005).Spatial distribution characteristics of organic matter and total nitrogen of marsh soils in river marginal wetlands.Geoderma,124,181-192.
Basamba, T. A.,Amézquita, E.,Singh, B. R.,Rao, I. M.(2006).Effects of tillage systems on soil physical properties, root distribution and maize yield on a Colombian acid-savanna Oxisol.Acta Agriculturae Scandinavica, Section B–Soil & Plant Science,56,255-262.
Belay, A.,Claassens, A.,Wehner, F.(2002).Effect of direct nitrogen and potassium and residual phosphorus fertilizers on soil chemical properties, microbial components and maize yield under long-term crop rotation.Biology and Fertility of Soils,35,420-427.
Bell, C.,Mcintyre, N.,Cox, S.,Tissue, D.,Zak, J.(2008).Soil Microbial Responses to Temporal Variations of Moisture and Temperature in a Chihuahuan Desert Grassland.Microbial Ecology,56,153.

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