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Joint International Conference on Long-term Experiments ...

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N c<strong>on</strong>tent of plant: Studying the nitrogen c<strong>on</strong>tent of lettuce leaves we found that there<br />

was significant relati<strong>on</strong>ship between N treatments and plant N c<strong>on</strong>tent. Increasing<br />

applicati<strong>on</strong> of N from 0.05 g pot -1 up to 0.2 g pot -1 had significant positive influence <strong>on</strong><br />

N c<strong>on</strong>tent of plant <strong>on</strong> both types of soils (Figure 1, Table 8). Biofertilizer did not cause<br />

marked effect <strong>on</strong> N c<strong>on</strong>tent of plant <strong>on</strong> chernozem soil. Inoculati<strong>on</strong> of this type of soil<br />

with Philaz<strong>on</strong>it slightly increased N c<strong>on</strong>tent with the excepti<strong>on</strong> of treatments with no<br />

mineral fertilizer.<br />

On sandy soil applicati<strong>on</strong> of Phylaz<strong>on</strong>it significantly (P

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