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| Studies on Characteristic of NPK Absorption by Asparagus Bean 〔 Vigna unguiculata W. ssp. sesquipedalis ( L.) Verd.〕 |
| Guan Peicong; Liu Houcheng; Chen Yudi |
| Department of Horticulture; South China Agricultural University; Guangzhou 510642 |
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Abstract The characteristics of NPK absorption by vien asparagus bean (VAB) 〔cv. Jinsui white pod (WB),Xingqing green pod (GB)〕 and dwarf asparagus bean (DAB) were studied. The results showed that the absorbed amount was N>K>P in both VAB and DAB. The ratio of N∶P 2O 5∶K 2O was 2.75-2.92∶1∶2.15-2.75 in VAB,and 4.49∶1∶4.21 in DAB. The absorbed amount in VAB was larger than DAB and that of WB was a little larger than GB. In VAB,the absorbed amount of NPK was about 2% during vegetative stage,about 98% during r...
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Received: 01 January 1900
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