摘要
以邯棉802为试验材料,采用随机区组试验设计,在棉花播种前底施过磷酸钙0(CK)、180、270和360 kg/hm2,研究了不同磷肥水平对棉花前期根系生长和蕾期农艺性状的影响。结果表明:棉花播前合理施用磷肥能明显促进棉花主根伸长和侧根生长,有效提高果枝量和花蕾量,其中施用量为360 kg/hm2时效果最佳。
Taking Hanmian 802 as the test material, 0 （CK）, 180, 270 and 360 kg/hm2 of calcium superphosphate were applied before planting, the effects of different phosphate fertilization rate on the root growth in the early stage and agronomic traits in the bud stage were studied using randomized block experimental design. The results showed that rational application of phosphate fertilizer before planting could significantly promote the root elongation and lateral root birth of cotton, effectively improve the branch number and and buds number, and the application rate of 360 kg/hm2 had the best effect.
出处
《河北农业科学》
2012年第12期40-41,共2页
Journal of Hebei Agricultural Sciences
关键词
棉花
磷肥
施肥量
根系生长
农艺性状
Cotton
Phosphate fertilizer
Fertilization rate
Root growth
Agronomic traits
