为了研究施肥对草坪修剪后恢复生长的影响,以4年生早熟禾为试材,设置3个施肥处理,分别为T1（291.12kg/hm2）,T2（349.42kg/hm2）,T3（407.81kg/hm2）,采用小区试验设计研究了不同施肥量对草坪叶片、植株生长和色素含量的影响规律。结果表明：T1、T2基础叶长度分别为18.10cm、19.20cm,均在理想范围内,而T3达到20.38cm,表现出徒长趋势;T1观赏叶宽最低,为0.28cm,分别低于T2和T3处理0.03cm和0.13cm;T1含水量降低幅度最大,低于对照9.22%,T3仅低于对照3.67%,而T2相反高于对照0.92%;T1叶绿素b含量最高,分别高于T2、T3处理0.15mg/g、0.05mg/g;T1总叶绿素含量为2.83mg/g,分别高于T2、T3处理0.15mg/g和0.04mg/g。综合分析认为,T1（291.12kg/hm2）施肥量对促进刈割草坪生长、提高观赏价值和降低养护成本效果最佳。%In order to study the grass recovering growth after mowing under fertilization, the author used 4 years old bluegrass as test materials, set 3 fertilization treatments that was T1： 291.12 kg/hm2, T2： 349.42 kg/hm2, T3： 407.81 kg/hm2, used plot experimental design study of different leaves fertilizer on the lawn of the law of leaves and plant growth and pigment content changes. The results showed that： T1, T2 treatment basis leaf length were 18.10 cm, 19.20 cm and all in the ideal range, but T3 treatment reached 20.38 cm and showed leggy trends; T1 treatment ornamental leaf width was 0.28 cm, lower than T2 and T3 was treatments 0.03 cm and 0.13 cm; T1 magnitude of the water content reduced largest and was lower than the control 9.22%, T3 lower than the control 3.67% but T2 was higher than control 0.92%; T1 treatment chlorophyll b content was highest and higher than T2, T3 treatment 0.15 mg/g, 0.05 mg/g; T1 total chlorophyll content was 2.83 mg/g, higher than T2, T3 treatment 0.15 mg/g and 0.04 mg/g. Comprehensive analysis that 291.12 kg/hm2 fertilizer treatment to promote grass growth and improve the ornamental value and reduce maintenance costs best.
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