河套灌区玉米一穴双株增密高产栽培主要技术指标的研究

doi:10.3969/j.issn.2096-1197.2019.03.07

Abstract

Abstract: By using a quadratic orthogonal regression rotary combination design,the relationship between yield and density,andnitrogen and phosphorus fertilizer consumption by maize in Hetao irrigation area planted by technology of double plants in one hole,were studied in 2017 and 2018.Mathematical models between yield and various factors were established.After optimization and selection of models for the two years,the technical indexes for maize planted by double plants in one hole in Hetao irrigation area were obtained.The indexes for yield ≥16 500 kg/hm² showed that density is 96 675-97 920 plants/hm²;while N dosage is 420.75-431.55 kg/hm²;and P₂O₅ dosage is 288.30-299.70 kg/hm².

Key words: Maize, Double plants in one hole, Technical indicators

CLC Number:

S513

DANG Jiuzhan, ZHAO Na, ZHAO Qiang, LIU Yujie, HAO Yunfeng, ZHANG Yujin, LI Xiaohong, FENG Junwei, ZHANG Gang, REN Xiaozhong, LIU Xiaoyan. Study on the key technical indicators for maize planted by double plants in one hole in Hetao irrigation area[J].Journal of Northern Agriculture, 2019, 47(3): 37-40.

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URL: https://journal30.magtechjournal.com/bfnyxb/EN/10.3969/j.issn.2096-1197.2019.03.07

https://journal30.magtechjournal.com/bfnyxb/EN/Y2019/V47/I3/37

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Study on the key technical indicators for maize planted by double plants in one hole in Hetao irrigation area

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