Research Article
Effects of Organic Soil Amendments on Photosynthetic Traits of Black Pepper (Piper nigrum L.) in an Alluvial Soil
Table 2
Rate of compound chemical fertilizer application for mature vines [
3,
12].
| Month after planting | Compound chemical fertilizer | Quantity per vine (g) |
| September | 12 : 12 : 17 : 2 + TE | 500 | October | 12 : 12 : 17 : 2 + TE | 500 | November | 12 : 12 : 17 : 2 + TE | 250 | December | 12 : 12 : 17 : 2 + TE | 250 | Total third year and above | = 1500 g/1.50 kg |
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