Abstract:

In order to clarify the fertilization methods in the single season rice production system in the north region of Zhejiang Province to promote efficient fertilizer utilization technologies, a farmer survey was conducted from September to October in the year of 2022 in Nanxun District, Huzhou City, and 45 farmers were surveyed. The survey results indicated that the average applied amount of nitrogen, phosphorus and potassium for inbred rice were 228.0, 63.0 and 93.0 kg·hm^-2, while for hybrid rice were 258.0, 75.0, 96.0 kg·hm^-2, respectively. The fertilizer applied amount for inbred and hybrid rice had been optimized, however, a large change was observed in the phosphorus and potassium application amount among the 45 farmers. The farmers who applied fertilizer for more than twice was over half of the total farmers in this survey, and 43 farmers used formula fertilizer instead of the traditional compound fertilizer, which indicated the split topdressing technology and the formula fertilizer were gradually accepted by farmers. However, the survey results also indicated that most of the farmers still spread the fertilizer into the fields when fertilizing, only 2 farmers used the side deep fertilizing technique. Nevertheless, most of the farmers did not use formula fertilizers according to soil testing formula technology. So, it is necessary to strengthen promotion work to solve the above problems.

Key words: farmer survey, rice, chemical fertilizer, fertilizer use efficiency, fertilizer application technologies