控释肥对黑麦草生长效应的影响

Effects of Controlled Release Fertilizer on Growth of Ryegrass

通过黑麦草盆栽试验,研究了施用金正大四种草坪专用控释肥、日本控释肥Nutricote、普通尿素对黑麦草生长效应的影响。结果表明,控释肥养分释放特征较适合黑麦草需肥特点,能显著提高黑麦草绿度、成坪与分蘖密度等质量品质,使其维持较稳定的生长势、生长速度和生物量,其中金正大草坪1(Kf1)和日本Nutricote(Nu)2个处理的长势最好,草屑量比普通尿素处理分别高出58%和27%,比空白分别高出82.9%和70.3%,且Nu处理生长最稳定。与普通尿素相比,控释肥更适用于黑麦草草坪。

Pot experiment was carried out to study the effects of controlled released fertilizers （CRFs）, Kingenta turf 1, Kingenta turf 2, Kingenta turf 3, Kingenta turf 4 and Japanese Nutricote, on ryegrass lawn. The results indicated that the nutrient release characteristics of controlled--release fertilizer fitted in well with the growth need of ryegrass. The color, forming and ramify density and other quality trait of ryegrass were markedly improved, and the growth potential, growing speed and biomass of ryegrass were steadily increased with CRF treatments. Kingenta turf 1 and Japanese Nutricote treatments were more superior than others. Compared to Urea and CK treatments, biomasss of ryegrass increased by 58% and 82. 9% in Kfl treatments, and increased by 27% and 70. 3% in Nu treatments, respectively. Therefore, controlled release fertilizer was more applicable as lawn fertilizers.