不同钾肥施用量对大豆产量及效益的影响

Study of impact about the yield and efficiency of soybean applying by different content of potassium fertilizer

为进一步摸清大豆钾肥需肥规律,提高大豆生产水平,于2014年秋季在广西防城港市防城区华石镇冲敏村进行了大豆钾肥施用量田间试验,并对其产量及其主要经济性状、肥料效益进行综合分析。试验结果:每公顷施用N 120kg、P2O560 kg、K2O 180 kg产量最高,达2368.5kg/hm2,与对照相比,增产26.8%,增产效果极显著,增收最明显,每公顷增收573.0元。试验表明在大豆生产上施肥以每公顷施用N 120 kg、P2O560 kg、K2O 180 kg增产增收,效果显著,其氮、磷、钾施用比例为N:P2O5:K2O=1:0.5:1.5,值得推广。

In order to further investigate the content of potassium fertilizer applying for soybean and improve the yield, we carried out the field trial for study of impact about the yield and benefic of soybean applying by different content of potassium fertilizer in Congmin village, Huashi Town, Fangcheng District, Fangcheng City in the fall of 2014, and arranged comprehensive analysis for its production and main economic characters, fertilizer efficiency.The results showed that： it achieves the highest yield 2368.5kg/hm^2 by per hectare application of N 120 kg、P2O5 60 kg、K2O 180 kg, 26.8%production has been increased by compared with the control group, the yield is increasing significantly, especially farmers＆#39; income, increasing CNY573.0 RMB per hectare. The experiment showed that applying fertilizer on field land per hectare N 120 kg、P2O5 60 kg、K2O 180 kg for soybean production is remarkable effective , the ratio of fertilization applying is N：P 2O5：K2O=1：0.5：1.5, which is worth promoting.