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本试验采用过磷酸钙、钙镁磷肥、氯化钾和石灰,对已收获种籽的努伊(Nui)多年生黑麦草(Lolinm Perennle.)进行施用,目的是通过试验,探索上述肥料对该植物再生性的影响,以获得最佳的施肥效果,使之能应用于正常的牧草和种籽生产。按试验设计,采用5种处理,3个重复,即以每公顷施用(1)Po Lo Ko,(2)Po L2000 Ko,(3)P1000 Lo Ko(4)Po Lo K50,(5)P1000 L2000 K50。最后根据测定的植株再生高度、鲜草产量及干物质产量,进行分析比较与显著性测定,以综合判断不同施肥对多年生黑麦草再生性的不同影响程度,结果以处理(5)和处理(4)的效果最佳,其平均再生高度和鲜草产量,都分别较对照组和处理(3)的差异达极显著水平(P<0.01),处理(5)的再生草干物质产量较对照组和处理(3)差异极显著(p<0.01),处理(4)较之差异显著(p<0.05);处理(1)、(2)、(3)之间有一定差异,但(不显著(p>0.05)。因此,根据上述情况,收获多年生黑麦草种籽后,有必要对其留茬的作物,进行合理的科学施肥,促进再生性生长,充分发挥草场的生产潜力,生产更多更好的牧草,确保放牧家畜安全越冬。
In this experiment, the superfluous ryegrass (Lolinm Perennle.) Was harvested with superphosphate, Ca-Mg phosphate, potassium chloride and lime for the purpose of experimentally exploring the effect of the fertilizer on the plant Regenerative effects for optimum fertilization and application to normal pasture and seed production. According to the experimental design, five treatments were used, three replicates, namely (1) Po Lo Ko, (2) Po L2000 Ko, (3) P1000 Lo Ko (4) Po Lo K50, (5) P1000 L2000 K50. Finally, according to the measured height of plant regeneration, fresh grass yield and dry matter yield, the comparative analysis and the significance determination were conducted to determine the different degrees of influence of different fertilization on perennial ryegrass regeneration. ) Had the best effect, the average height of regeneration and fresh grass production were significantly different (P <0.01) compared with the control group and treatment (3), and the dry grass yield of treatment (5) There was a significant difference between treatment (1), (2) and (3), but not significant (p <0.01), treatment (4) (p> 0.05) Therefore, according to the above situation, it is necessary to rationally fertilize stubble crops after harvesting perennial ryegrass seeds so as to promote regenerative growth, give full play to grassland production potential, and produce more Better pasture, to ensure the safety of livestock grazing winter.