Effects of super absorbent polymer and nitrogen-phosphorus fertilizers on growth of rain-fed maize
WANG Yu1, WEI Chenchen1, YANG Peiling1*, LIAO Renkuan2, WEI Rong1, YANG Fengru1
1.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 2.China Institute of Water and Civil Resources and Hydropower Research, Beijing 100048, China
Abstract:In order to improve water and fertilizer use efficiencies while crop yield is kept increasing and to slow down surface pollution in dry land farming, a field study was conducted by orthogonal design of experiment to clarify effects of super absorbent polymer(SAP)and nitrogen-phosphorus fertilizers(NPF)on fertility levels at different depths of soil, maize growth and nutrient use efficiency of rain-fed maize in the field. SAP and NPF application modes were sought for the optimal maize yield. The results show that the effects of three factors on fertility at different depths of soil, maize growth and nutrient use efficiency are inconsistent. SAP mainly affects soil fertility and crop nutrients, but NPF mainly influences soil nutrients and crop biomass. Under the conditions of this experiment, the maximum maize yield of 1.27 kg/m2 appears when SAP is in 45 kg/hm2 dose, and nitrogen and phosphorus fertilizers are in 120 kg/hm2 and 120 kg/ hm2 doses, respectively. The maximum increment in maize yield is 8% compared with the treatment without SAP and NPF, while the nitrogen fertilizer has achieved the maximum partial factor productivity of 105.83 kg / kg.
王瑜, 魏琛琛, 杨培岭*, 廖人宽, 魏榕, 杨凤茹. 保水剂与氮磷肥配施对雨养玉米生长的影响[J]. 排灌机械工程学报, 2018, 36(9): 903-908.
WANG Yu, WEI Chenchen, YANG Peiling*, LIAO Renkuan, WEI Rong, YANG Fengru. Effects of super absorbent polymer and nitrogen-phosphorus fertilizers on growth of rain-fed maize. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(9): 903-908.
[1]LIAO R,YANG P,WANG Z,et al.Development of a soil water movement model for the superabsorbent polymer application[J].Soil science society of America journal,2018,82(2):57-63.[2]王阳,赵兰坡,朱孟龙,等.长期单施化肥对土壤有机质的影响[J].吉林农业科学,2015,40(1):45-50. WANG Yang,ZHAO Lanpo,ZHU Menglong,et al.Effects of long-term application of chemical fertilizer on soil organic matter[J].Journal of Jilin agricultural scie-nces,2015,40(1):45-50.(in Chinese)[3]刘钦普.中国化肥面源污染环境风险时空变化[J].农业环境科学学报,2017,36(7):1247-1253. LIU Qinpu.Spatio-temoral changes of fertilization environmental risk of China[J].Journal of agro-environment science,2017,36(7):1247-1253.(in Chinese)[4]程闯胜,任树梅,杨培岭,等.保水剂对大田雨养玉米水肥利用效率影响的试验研究[J].灌溉排水学报,2014,33(6):141-144. CHENG Chuangsheng,REN Shumei,YANG Peiling,et al.Effects of super absorbent polymer on water and fertilizer use efficiency of farmland rainfed corn [J].Journal of irrigation and drainage,2014,33(6):141-144.(in Chinese)[5]BARROS A F D, PIMENTEL L D, ARAUJO E F, et al. Super absorbent polymer application in seeds and planting furrow: it will be a new opportunity for rainfed agriculture[J]. Semina ciencias agrarias, 2017, 38(4):1703.[6]CANNAZZA G,CATALDO A,BENEDETTO E D,et al.Experimental assessment of the use of a novel superabsorbent polymer(SAP)for the optimization of water consumption in agricultural irrigation process[J].Water,2014,6(7):2056-2069.[7]黄占斌,孙朋成,钟建,等.高分子保水剂在土壤水肥保持和污染治理中的应用进展[J].农业工程学报,2016,32(1):125-131. HUANG Zhanbin,SUN Pengcheng,ZHONG Jian,et al.Application of super absorbent polymer in water and fertilizer conversation of soil and pollution management[J].Transactions of the CSAE,2016,32(1):125-131.(in Chinese)[8]鲍士旦.土壤农化分析[M].北京:中国农业出版社,2003.[9]EAGLE A J,BIRD J A,HORWATH W R,et al.Rice yield and nitrogen utilization efficiency under alternative straw management practices[J].Agronomy journal,2000,92(6):1096-1103.[10]张福锁,王激清,张卫峰,等.中国主要粮食作物肥料利用率现状与提高途径[J].土壤学报,2008(5):915-924. ZHANG Fusuo,WANG Jiqing,ZHANG Weifeng,et al.Nutrient use efficiencies of major cereal crops in China and measures for improvement[J].Acta pedologica sinica,2008(5):915-924.(in Chinese)