摘要
针对大田水稻生产中穗数不足问题,研发了具有生长调控作用的新型水稻控释肥产品。通过盆栽、田间系列试验探讨了该肥料对水稻生长发育和产量的影响。结果表明,应用生长调控型控释肥能较显著促进分蘖、增加成穗数、降低株高等,其穗粒数较常规分次施肥略有降低,但产量因穗数增加仍略有提高。同时,应用该肥料在N、P2O5、K2O用量较常规分次施肥减少10.7%、39.6%和21.1%情况下,一次施用仍能满足水稻本田期对养分的需求,每667 m2增收节支达41.1元。表明该肥料在改善群体结构和群体质量,提高水稻抗倒伏能力,以及提高水稻生产效益方面具有较强优势。
A Series pot trails and field experiments were conducted to study the effects of one basal application of growth regulating controlled-release fertilizer（RCRF） on development and yield of rice. Results showed that RCRF significantly increased tillers and panicles, decreased plant height, and increased yield somewhat due to the increment of panicles with slightly smaller filled grains per panicle though. One basal application of the RCRF, with a ,save of N,P2O5,K2O nutrients by 10.7 % , 39.6 % and 21. 1% in comparison to conventional splits, met the nutrient demands of transplanting rice, meanwhile increasing production profit up to 41. lyuan/667m^2. These illustrated that the RCRF should be superior to conventional splits for improving stracture and quality of population, enhancing lodging resistance, and increasing production profit of rice.
出处
《广东农业科学》
CAS
CSCD
2006年第9期9-12,共4页
Guangdong Agricultural Sciences
基金
广东省自然科学基金项目(04002098)
广东省科技成果推广计划项目(2004B40101004)
广东省重大科技专项(A20405)
关键词
水稻
控释肥
一次性施肥
生长调控
产量
rice
controlled-release fertilizer
one basal ferilization
growth regulation
yield
