垃圾复混肥对土壤理化性质和草坪草生长发育的影响

Influence of Waste Compoud Fertilizer on Soil Physico-chemical Nature and Lawn Grass Growing up with Lucerne again

进行了垃圾复混肥、化肥、不施肥对草坪草田间比较试验。结果表明:垃圾复混肥与不施肥比较,0～20cm土层中容重降低0.13g/cm3,总孔隙度增加4.90%,>0.25mm团粒结构增加4.74%,自然含水量和贮水量分别增加61.65g/kg和107.58m3/hm2,阳离子交换量增加9.85cmol/kg,有机质增加2.43g/kg,碱解N、速效P、速效K分别增加28.50mg/kg、4.14mg/kg、12.40mg/kg,pH降低0.11。草坪草株高、根系长度、鲜草质量、干草质量、鲜根系质量、干根系质量分别增加16.43mm、3.03mm、22.72μg/株、9.09μg/株、11.64μg/株、4.65μg/株。不同处理的增产顺序是垃圾复混肥>化学肥料>不施肥(对照)。各处理间的差异显著性经LSR检验达到显著和极显著水平。

Comparing tests of applying waste compound fertilizer, chemical fertilize and no fertilizer to lawn grass were carried out, the result showed that ： comparing applying waste compound fertilizer with no fertilizer, 0 - 20 cm soil layer unit weight reduces 0. 13 g/cm^3, the total hole degree increases by 4.90% , 〉0. 25 mm granule structure increases by 4. 74% , natural water content and amount of water stored increase 61.65 g/kg and 107.58 m^3/hm^2 respectively, open ion exchange amount increases 9.85 cmol/kg, the organic matter increases 2.43 g/kg, the alkali solves N, quick -acting P and quick -acting K increase by 28.50 mg/kg, 4.14 mg/kg, 12.40 mg/kg respectively, pH is reduced by 0.11, The lawn grass one is tall, length of the root system, fresh grass quality, hay quality, fresh root system quality, doing the quality of the root system to increase 16.43 ram, 3.03 mm, 22.72 μg/one separately, 9.09 μg/one separately, 11.64 μg/one separately, 4.65 μg/one separately. Different orders of increasing the production of while dealing with are that the waste compound fertilizer 〉 Chemical fertilizer 〉 appling no fertilizer （contrast） . The difference significance while each dealing with is examined and reached the remarkable and extremely remarkable level by LSR.