不同锌肥用量对腾龙温凉区玉米产量的影响

Effect of Different Zinc Fertilizer Dosage on Maize Yield in Warm and Cool Area of Tenglong

为了解腾冲、龙陵温凉区玉米上七水硫酸锌的适宜施用量,2022年5月—9月选择具有代表性区域(腾冲市曲石镇)开展田间正规试验。试验采用单因素5水平随机区组设计,设5个处理3次重复,在N、P、K推荐施肥量的基础上增施不同用量的锌肥。结果表明:施用七水硫酸锌15~60 kg/hm^(2)的处理较对照(不施用硫酸锌)玉米产量增加1315~2177 kg/hm^(2),增产幅度14.52%~24.03%;玉米上施用锌肥对增加玉米穗实粒数、提高产量具有一定作用,七水硫酸锌适宜用量为30 kg/hm^(2)左右。

In order to understand the appropriate application amount of zinc sulfate heptahydrate in maize in warm and cool areas of Tengchong and Longling,field experiments were carried out in a representative area(Qushi Town of Tengchong City)from May to September 2022.A single factor 5-level randomized block design was used in the experiment,5 treatments were set up for 3 replicates,and different amounts of zinc fertilizer were applied on the basis of the recommended fertilizer amounts of N,P and K.The results showed that the application of zinc fertilizer on maize had a certain effect on increasing the number of grains per ear and the yield of maize,and the appropriate dosage of zinc sulfate heptahydrate was about 30 kg/hm^(2).