青阳茂施缓释肥料在水稻上的肥效研究

Study on Fertilizer Efficiency of Qingyang Maoshi Slow Release Fertilizer on Rice

[目的]验证青阳县茂施农业科技有限公司生产的缓释肥料田间使用效果。[方法]以不施氮肥和常规施肥处理为对照,研究了3种不同用量缓释肥对水稻生长发育、产量及经济效益的影响。[结果]与常规施肥相比,缓释肥料处理水稻穗数、穗粒数和千粒重分别多出19.95万穗/hm^(2)、6.2粒和0.55 g。缓释肥料处理水稻产量比常规施肥处理增产7.9%。施用青阳茂施缓释肥料还能有效提高氮肥利用率,增加经济效益。与常规施肥相比,缓释肥料处理平均净收益高出1 868.7元/hm^(2),产投比高1.11。[结论]该研究为青阳茂施缓释肥料的大面积推广应用提供了科学依据。

[Objective] The aim of this study was to verify the field application effect of slow release fertilizer produced by Maoshi Agricultural Science and Technology Co.,Ltd.,in Qingyang county. [Method] The effects of three different dosages of slow-release fertilizers on the growth,yield and economic benefits of rice were studied with no nitrogen application and conventional fertilization as control. [Result] Compared with conventional fertilization,the spike number,grain number per spike and 1 000-grain weight of slow release fertilizer treatment increased by 199 500 spike/hm^(2),6.2 grains and 0.55 g,respectively. The rice yield of slow release fertilizer treatment was 7.9% higher than that of conventional fertilization treatment. The application of slow release fertilizer could also effectively improve nitrogen use efficiency and increase economic benefits.Compared with conventional fertilization,the average net income of slow release fertilizer treatment was1 868.7 yuan/hm^(2)higher,and the yield-input ratio was 1.11 higher. [Conclusion] The study provided scientific basis for the large-scale application of slow release fertilizer produced by Maoshi Agricultural Science and Technology Co.,Ltd.,in Qingyang county.