Section 15
Chapter 14,570

Mutual shading as a factor limiting the yield response of rice to application of nitrogen, phosphorus and potassium fertilizers

Tanaka, A.

Pl. Soil 25(2): 201-10


DOI: 10.1007/bf01347819
Accession: 014569762

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Results are given from trials with the leafy rice Peta grown in nutrient culture and in pots in crowded or spaced arrangements at various NPK levels. At wide spacing, P and K levels of 5 and 10 ppm. limited yield only where N levels were above 40 ppm., whereas at high levels of P and K, yields increased as N levels increased up to 100 ppm.

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