摘要
在不同的季节对假俭草草坪叶施肥,表现为不同的提高品质的方式:春季叶施6 g/m2的N使草坪的盖度、密度、均一性增加;夏季叶施0.6 L/m2的Fe(EDTA-Fe)使草坪叶片变短变窄变厚,草坪自然降低0.5-0.8 cm,颜色深绿,也使草坪的根系分布范围扩大,增加了假俭草草坪的抗旱性;秋季叶施4g/m2N+0.6 L/m2Fe使草坪的青绿期延长15d.
In this study tier-divisor was used to design the examination. N Fe, N+Fe as three treament of leaf fertilization. Pure urea and EDTA-Fe were used tosupply N, Fe. The treatment degree of N is 2,4,6, g/ m2, of Fe is 0.4,0.6,0.81 g/m2, N+Fe was supply at the same stage using the correspond content of N and Fe.at different season, supplying the turf with different fertilization of different contents. The effects of supplying N, Fe at leaf to the development, and green period has been analyzed. Result show that: At different season, can improve turf quality at different style. Spring supplying with N of 6g/m2 makes tufimprove at coverage, den. Sity, uniformity. Spring supplying with N of 0.61g/m2 can improving density, color, uniformity of turf. Turf leaf lamina comes shorter, marrower and thicker, if supplying Fe on leaf surface at summer. It makes canopy height lower by 0.5-0.8 cm, so we can improve sight effect of turf by supplying Fe. The distribution range of roots extended, so the drought tolerance improved. When supplying autumn with N of 4g/ m2 and 0.6 l/m2 of Fe to gather, the green periods can be prolong.
出处
《四川草原》
2004年第3期50-52,共3页
Journal of Sichuan Grassland
基金
四川省青年基金项目(02ZQ026-057)资助。
关键词
季节
假俭草
草坪
品质
叶施肥
尿素
Turf, Centipedetgass, Leaf Fertilizing, Urea, EDTA-Fe
