QIAO Zaoyan,LU Min,JIAO Yongkang,et al.Effects of Different Dosage of PASP-Zn on Summer Maize in North China[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(02):23-30.[doi:10.11942/j.issn1002-2767.2024.02.0023]
聚天冬氨酸锌不同施用量对华北地区夏玉米的影响
- Title:
- Effects of Different Dosage of PASP-Zn on Summer Maize in North China
- 文章编号:
- 4
- Keywords:
- PASP-Zn; dosage; summer maize; North China
- 文献标志码:
- A
- 摘要:
- 为了探索聚天冬氨酸锌(PASP-Zn)在华北夏玉米生产过程中减肥增效和提质增效方面的效果,本研究以郑单958为材料,以PASP-Zn施用量与养分供给水平为研究变量,对华北夏玉米的干物质积累、养分利用、玉米产量等相关农学指标进行了统计与分析。结果表明,在试验范围内,PASP-Zn用量的增加能够有效地增加夏玉米干物质的积累速率(T1~T9增长率为-0.58%~9.70%)和养分利用(主要为氮和磷);PASP-Zn的施用能有效增加玉米产量(T1~T9增产幅度为3.33%~21.31%),主要增加夏玉米的千粒重(T1~T9增长幅度为1.45%~11.89%),并对穗粒数也有一定的提高(T1~T9增长幅度为1.40%~7.93%);对养分利用相关的农学指标检测分析发现,在常规施肥或减肥15%条件下,PASP-Zn用量为1.5 kg·hm-2就能取得较好的效果,但是在减量施肥30%条件下,则需要增加PASP-Zn的用量至3.0 kg·hm-2以保证其增效效果。因此,可以在华北地区夏玉米种植过程中进行氮、磷肥的减施,配合使用PASP-Zn进行种植。
- Abstract:
- In order to explore the effect of PASP-Zn application rate on reducing fertilizer application and increasing effectiveness during the planting process of summer maize , this study took Zhengdan 958 as the test sample, and took the application dosage of PASP-Zn and nutrient supply level as variables to conduct statistics and analysis on dry matter accumulation, nutrient utilization, and agronomic indicators related to maize yield of summer maize in North China. Research found that within the experimental range, an increase in the dosage of PASP-Zn can effectively increase the dry matter accumulation rate (The rate of increase T1-T9 were -0.58%~9.70%) and nutrient utilization (mainly nitrogen and phosphorus) of summer maize; The application of PASP-Zn can effectively increase maize yield (The rate of increase T1-T9 were 3.44%-20.42%), mainly increasing the thousand grain weight (The rate of increase T1-T9 were 6.83%-11.89%) , and also improving the number of grains per ear (The rate of increase T1-T9 were 1.39%-7.93%). In the analysis of agronomic indicators related to nutrient utilization, the experiment found that under the conditions of conventional fertilization or weight loss of 15%, the dosage of 1.5 kg·ha-1 PASP-Zn can achieve good results. However, under the condition of reduced fertilization of 30%, it was necessary to increase the dosage of PASP-Zn to 3.0 kg·ha-1 to ensure its synergistic effect.Therefore, agricultural practitioners can reduce the application of nitrogen and phosphorus and use PASP-Zn in the process of summer maize planting in North China.
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备注/Memo
收稿日期:2023-08-19