Fine-Crush Straw Returning Enhances Dry Matter Accumulation Rate of Maize Seedlings in Northeast China

In the conventional straw returning operation, the maize straw is broken into pieces of about 10 cm and degraded naturally in the farmland. Under the conventional straw returning mode, maize straw does not easily decompose quickly in cold climate conditions, which can cause a significant decrease in the dry matter accumulation rate of next maize seedlings. Therefore, it is difficult to popularize conventional straw returning in the maize-growing regions of Northeast China. In order to solve the above-mentioned problems, a new agronomic technology of straw returning is proposed in this study, and a corresponding Bionic Straw Fine Crusher is developed to match the agronomic requirements. The key function of fine-crush straw returning is to significantly increase the contact area between the straw pith and the external environment by significantly shortening the crushing length, thus accelerating the rate of straw decomposition. In this study, the differences in operational effects between fine-crush straw returning, conventional straw returning, and no returning are clarified through 6 consecutive years of field experiments. At the same time, statistical analysis of the experimental data reveals the influence of fine-crush straw returning on the dry matter accumulation of maize at the seedling stage under the conditions of different returning modes, and determines the optimal agronomic parameter combination. The results of this study show that fine-crush straw returning significantly increased the decomposition rate, soil organic matter content, and soil accumulated temperature, thus creating a seedbed more favorable for maize seedling development. The experimental results showed that the optimal crushing length values of fine-crush straw returning were 1.5 cm, 3 cm, and 1.5 cm under mulching returning, shallow burial returning, and deep tillage returning conditions, respectively. Compared with conventional straw returning and no returning operations, the fine-crush straw returning operation can increase the maximum seedling dry matter accumulation of the maize crop by 5.1 g/plant and 2.8 g/plant (shallow burial), 4.2 g/plant and 1.8 g/plant (deep tillage), and 4.3 g/plant and 1.9 g/plant (mulching returning). The findings of this study may provide a viable new agronomic technology to accelerate the spread of straw returning in maize-growing areas of Northeast China.

[1]  Huifang Han,et al.  Subsoiling increases aggregate-associated organic carbon, dry matter, and maize yield on the North China Plain , 2021, PeerJ.

[2]  J. Li,et al.  EFFECT OF STRAW SUBSTITUTING PARTIAL MINERAL N FERTILIZER ON N DISTRIBUTION OF MAIZE PLANTS AND SOIL IN NORTHEAST CHINA , 2021 .

[3]  Xianju Lu,et al.  Genome-Wide Association Study of Maize Aboveground Dry Matter Accumulation at Seedling Stage , 2021, Frontiers in Genetics.

[4]  T. Abbas,et al.  Effect of drying-rewetting durations in combination with synthetic fertilizers and crop residues on soil fertility and maize production , 2020 .

[5]  M. Mauritz,et al.  Lower soil moisture and deep soil temperatures in thermokarst features increase old soil carbon loss after 10 years of experimental permafrost warming , 2020, Global change biology.

[6]  W. Zou,et al.  [Effects of the construction of fertile and cultivated upland soil layer on soil fertility and maize yield in black soil region in Northeast China.] , 2020, Ying yong sheng tai xue bao = The journal of applied ecology.

[7]  J. Gu,et al.  Investigations of the effect of the amount of biochar on soil porosity and aggregation and crop yields on fertilized black soil in northern China , 2020, PloS one.

[8]  Chaoxu Wang,et al.  Effect of Maize Straw–Derived Biochar on Calcareous Arable Soil Organic Carbon Mineralization Under the Condition of with or Without Nitrogen-Fertilizer Addition , 2020, Journal of Soil Science and Plant Nutrition.

[9]  C. Cao,et al.  Straw return increases crop grain yields and K-use efficiency under a maize-rice cropping system , 2020 .

[10]  S. Dong,et al.  The combined application of organic and inorganic fertilizers increases soil organic matter and improves soil microenvironment in wheat-maize field , 2020, Journal of Soils and Sediments.

[11]  Jiale Zhao,et al.  Design of bionic locust mouthparts stubble cutting device , 2020, International Journal of Agricultural and Biological Engineering.

[12]  Jiaping Wu,et al.  Effects of biochar particle size and concomitant nitrogen fertilization on soil microbial community structure during the maize seedling stage , 2020, Environmental Science and Pollution Research.

[13]  Jia Deng,et al.  Impacts of nitrogen management and organic matter application on nitrous oxide emissions and soil organic carbon from spring maize fields in the North China Plain , 2020 .

[14]  Yan-Li Wang,et al.  [Effects of straw returning combined with nitrogen fertilizer on spring maize yield and soil physicochemical properties under drip irrigation condition in Yellow River pumping irrigation area, Ningxia, China]. , 2019, Ying yong sheng tai xue bao = The journal of applied ecology.

[15]  P. Sui,et al.  Maize Straw Returning Approaches Affected Straw Decomposition and Soil Carbon and Nitrogen Storage in Northeast China , 2019, Agronomy.

[16]  Honglei Jia,et al.  Effects of Straw Returning and Residue Cleaner on the Soil Moisture Content, Soil Temperature, and Maize Emergence Rate in China's Three Major Maize Producing Areas , 2019, Sustainability.

[17]  Junhui Li,et al.  Effects of maize straw‐derived biochar application on soil temperature, water conditions and growth of winter wheat , 2019, European Journal of Soil Science.

[18]  Yanjie Lv,et al.  Straw Return with Reduced Nitrogen Fertilizer Maintained Maize High Yield in Northeast China , 2019, Agronomy.

[19]  Xinyu Zhu,et al.  Earthworms promote the accumulation of maize root-derived carbon in a black soil of Northeast China, especially in soil from long-term no-till , 2019, Geoderma.

[20]  Wei Zhang,et al.  Dynamic contribution of microbial residues to soil organic matter accumulation influenced by maize straw mulching , 2019, Geoderma.

[21]  H. Demir,et al.  Numerical modelling of transient soil temperature distribution for horizontal ground heat exchanger of ground source heat pump , 2018 .

[22]  Jianming Li,et al.  Comparative effects of different maize straw returning modes on soil humus composition and humic acid structural characteristics in Northeast China , 2018 .

[23]  Jie Zhang,et al.  Effect of the organizational difference of corn stalk on hemicellulose extraction and enzymatic hydrolysis , 2018 .

[24]  Daocai Chi,et al.  [Effects of different colored plastic film mulching and planting density on dry matter accumulation and yield of spring maize.] , 2018, Ying yong sheng tai xue bao = The journal of applied ecology.

[25]  Bin Zhang,et al.  Design and Test Research on Cutting Blade of Corn Harvester Based on Bionic Principle , 2017, Applied bionics and biomechanics.

[26]  G. Molari,et al.  Analysis of the parameters affecting the mechanical behaviour of straw bales under compression , 2017 .

[27]  Zhi-ming Feng,et al.  Potential Impacts of Climate Change and Adaptation on Maize in Northeast China , 2017 .

[28]  N. McLaughlin,et al.  Changes in soil organic carbon stocks under 10-year conservation tillage on a Black soil in Northeast China , 2016, The Journal of Agricultural Science.

[29]  Jin Tong,et al.  Design and tests of biomimetic blades for soil-rototilling and stubble-breaking , 2015 .

[30]  Yongping Wei,et al.  Effects of straw return and regional factors on spatio-temporal variability of soil organic matter in a high-yielding area of northern China , 2015 .

[31]  Changying Li,et al.  Design of Bionic Saw Blade for Corn Stalk Cutting , 2013 .

[32]  LiuShou-bao,et al.  Relationships among soil respiration, soil temperature and dry matter accumulation for wheat-maize intercropping in an arid environment , 2013 .

[33]  H. Fang,et al.  Using 137Cs to study spatial patterns of soil erosion and soil organic carbon (SOC) in an agricultural catchment of the typical black soil region, Northeast China. , 2012, Journal of environmental radioactivity.

[34]  T. H. Liu,et al.  Experimental Comparison of Litchi Fruit Stalk Cutting Force , 2012 .

[35]  Guirui Yu,et al.  Effects of soil erosion and deposition on soil organic carbon dynamics at a sloping field in Black Soil region, Northeast China , 2010 .

[36]  Luquan Ren,et al.  Biological couplings: Classification and characteristic rules , 2009 .

[37]  Xiying Zhang,et al.  Effects of straw mulching on soil temperature, evaporation and yield of winter wheat: field experiments on the North China Plain , 2007 .

[38]  J. A. Andrade,et al.  Influence of temperature and soil moisture on leaf area and dry matter accumulation during establishment of pea, maize and sunflower. , 2007 .

[39]  S. Dong,et al.  Hydrological and geocryological response of winter streamflow to climate warming in Northeast China , 2003 .

[40]  E. Kandeler,et al.  The effect of maize straw placement on mineralization of C and N in soil particle size fractions , 1999 .

[41]  E. Kandeler,et al.  Invertase and xylanase activity of bulk soil and particle-size fractions during maize straw decomposition , 1998 .

[42]  R. Lal.  Tillage and agricultural sustainability , 1991 .

[43]  中華人民共和国国家統計局.  China statistical yearbook , 1988 .