摘要
施肥是确保花生高产栽培的一项重要措施。为明确钾肥施用量对花生产量及经济效益的影响,为山东省化肥减量增效项目实施提供实例参考,于2021年4—10月在大牟家镇刘莉家庭农场开展田间试验。试验设置4个不同施钾(K2O)水平(0、110.25、157.5、204.75 kg/hm^(2)),各处理重复3次,并在收获期测产分析。结果表明,在0~157.5 kg/hm^(2)施用量范围内,随着钾肥施用量增加,花生主茎高、侧枝长、荚果质量增加,产量也随之提高。当钾肥施用量为157.5 kg/hm^(2)时,花生产量最高,为4 808.4 kg/hm^(2),比不施钾处理增加1 523.85 kg/hm^(2);同时主茎高、侧枝长、荚果质量也最大,比不施钾处理分别增加0.9 cm、4.9 cm、7.3 g。当超过204.75 kg/hm^(2)时,花生养分吸收减少,主茎高、侧枝长、荚果质量、产量也随之下降。通过模拟函数,得出本试验条件下最佳经济效益的钾肥推荐量为161.55 kg/hm^(2),其对应的产量为4 569.9 kg/hm^(2)。
Fertilizer input was an important method for peanut high yield cultivation. To study the dosage of fertilizer effect to the yield of peanut, filed trial was carried out at Damou town Liujiali farmland during April to October,2021. The yield of peanut were investigated under four potassium treatments with three repeats. Different potassium(K2O) application levels(0, 110.25, 157.5, 204.75 kg/hm^(2)) were repeated three times, and the yield was measured and analyzed at harvest time. The results indicated the height of peanut seedling, side branch length, the weight of pod were increased as the higher dosage of potassium investment. The maximum yield of peanut was 4 808.4 kg/hm^(2) with 157.5 kg/hm^(2)potassium supplement which was 1 523.85 kg/hm^(2)more than negative treatment. The height of stem,side branch length,the weight of pod were increased by 0.9 cm, 4.9 cm, 7.3 g respectively. However, when the potassium utility dosage exceed 204.75 kg/hm^(2)caused negative effect to peanut yield with lower stem, side branch length, the weight of pod compared with control treatment. 161.55 kg/hm^(2)potassium was recommended and with the best economic benefit with the corresponding yield 4 569.9 kg/hm^(2)via analogue function analysis.
作者
薛刚
孙晓梅
赵玉静
XUE Gang;SUN Xiaomei;ZHAO Yujing(Gaomi Bureau of Agriculture and Rural Affairs,Gaomi 261500,China;Linzi District Agricultural Technology Service Center,Linzi 255400,China)
出处
《中国果菜》
2023年第1期75-79,共5页
China Fruit & Vegetable
基金
2020年中央农业生产发展资金项目(鲁农计财字[2020]47号)。
关键词
春花生
钾肥
增产
经济效益
Spring peanut
potassium
yield enhancement
economic effectiveness
