播期和施肥量对绿豆产量的效应研究

Effects of Sowing Date and Fertilization on Yield of Mung Bean

研究播期和施肥量对绿豆产量的影响,可为实际生产中等雨播种以及纠正不合理施肥现象提供理论依据。在张家口地区,以绿豆品种张绿一号为试材,采用单因素试验设计,研究了播期对绿豆生育期的影响,以及氮、磷、钾施用量对绿豆产量的影响。对绿豆产量与施肥量进行回归分析,根据回归方程,计算得到氮、磷、钾肥的适宜施用量。结果表明:绿豆适宜播期为5月6～16日,最晚不能迟于6月15日播种;在本试验条件下,合理施用氮、磷、钾肥,绿豆明显增产,氮、磷、钾适宜用量分别为40～45 kg/hm2、36～48 kg/hm2和63～92 kg/hm2。

To provide a scientific base for mung bean production, effects of sowing date and fertilization on yield was studied. In Zhangjiakou area, taking Zhanglv No. 1 as research material, a single factor experiment was carried out. The results indicated that the most suitable sowing date was from May 6th to 16th, no later than June 15th. Applying an appropriate amount of fertilizer could significantly improve the yield of mung bean. The optimum amount of N, P and K were 40 - 45 kg/hm2, 36 - 48 kg/hm2 and 63 - 92 kg/hm2, respectively.