论文部分内容阅读
试验设计 1953年在象牙海岸的沿海赭黄色砂质土上,按双行梯形栽植设计进行了试验,主要研究不同种植密度(123—278株/公顷)的西非高种椰子的生长和产量。4个重复,26个处理,每个处理7株。其中2个重复用蝴蝶豆作永久覆盖;另2个重覆连续4年间作木薯,而后裸土。产量初步统计至1960年底,7年后,对每公顷超过164株的椰园每2株疏伐1株而成三角形栽植。
EXPERIMENTAL DESIGN Experiments were conducted on a double ocher trapezoidal design on coastal ocher sandy sandy soil of the Ivory Coast in 1953 to study the growth and yield of high-coconut West African coconuts with different planting densities (123-278 plants per hectare). 4 replicates, 26 treatments, 7 per treatment. Two of them were permanently covered with butterfly beans; the other two were repeated for four years as cassava and then bare soil. Preliminary production statistics to the end of 1960, 7 years later, more than 164 per hectare of coconuts for every 2 strains of a planted in a triangle planted.