油菜叶面喷施富乐硼微肥的增产效果

Effect of Foliar Spraying Boron Fertilizer on Rapeseed Yield Increase

以湘杂油753为供试油菜品种,在常规施肥的基础上分别设置油菜苗期和移栽返青后叶面喷施富乐硼(粉剂)、等量清水和空白对照3个处理,以期探索桃源县以第四纪红色粘土母质发育的红黄泥田为代表的土壤种植油菜时叶面喷施硼肥的效果。结果表明:叶面喷施富乐硼后能明显改善油菜的经济性状,增加有效分枝数、有效角果数、有效粒数和千粒重,比不施富乐硼的处理增产210.0~240.0 kg/hm^(2),增产率为10.0%~11.6%,纯收入增加795.00~1 215.00元/hm^(2),经济效益增加明显。喷施要点:在油菜苗期和移栽返青后用微量元素水溶肥料富乐硼(粉剂)675 g对水675 kg/hm^(2)叶面喷施2次,阴天或晴天下午4:00后喷施,喷施后6 h内如遇降雨,应重新喷施。

Taking Xiangzayou 753 as the tested rape variety,this experiment aims to explore the aplication effect of foliar spraying boron fertilizer on rapeseed in the representative reddish clayey soil developed from Quaternary red clay parent materials in Taoyuan County.On the basis of conventional fertilization,three treatments were set,namely foliar spraying of Fulle boron microfertilizer (powder) at the seedling stage and the greenup stage after transplanting,equal amount of clean water and blank control.The results show that compared with the treatments without boron fertilizer,foliar spraying Fulle boron microfertilizer significantly improved the economic characteristics of rapeseed,increased the number of effective branches,the number of effective pods per plant,the number of effective seeds per pod and 1000-seed weight;in detail,the rapeseed yield increased by 210.0-240.0 kg/hm^(2) with a growth of 10.0-11.6%,the net income increased by 795.00-1 215.00 yuan/hm^(2),achieving a healthy growth of profits.The points of foliar spraying:675 g of Fulle boron microfertilizer mixed with 675 kg/hm^(2) of water was sprayed respectively at the seedling stage and the greenup stage after transplanting after 4:00 PM on cloudy or sunny days.In the case of rain within 6 h after spraying,re-spray.