Abstract:

To explore the suitable base fertilizer method for wheat pre-winter seedlings, the effects of different base fertilizers on wheat seedling growth were studied by houseplant experiment. Four kinds of sowing and fertilizing methods were designed, such as seeds and fertilizers mixed and sown into a line, fertilized on the side of the sowing line, fertilized under the sowing line, seeds and fertilizers mixed and wide sowing. And in each mode, three fertilizer dosages of 225, 375, and 600 kg/hm² were set up. The results showed that the method of seed and fertilizer mixed into a line had a significant effect on the emergence of wheat seedling, and with the increase of fertilizing amount, the emergence rate of wheat decreased significantly. The other three methods of sowing and fertilizing had no obvious effect on the emergence of wheat. In the case of fertilizer and seed mixed, both sowing methods showed a trend of increasing plant height and root length with the increase of fertilizing amount. The plant height and root length of wheat were higher in the wide-seeding method. Using the same sowing method, the aboveground biomass of wheat increased with the increase of the fertilizing amount. In the case of equal amount of fertilizer input, the order of the aboveground biomass of wheat was as follows: seed and fertilizer mixed and wide sowing> fertilized on the side of the sowing line> fertilized under the sowing line> seed and fertilizer mixed and sown into a line. Under the condition of this experiment, it is suggested that the seeds and fertilizers should be mixed and widely sown to optimize the sowing of wheat.

Key words: wheat, fertilization position, mixed planting of seed and fertilizer, emergence rate, biomass