论文部分内容阅读
无机肥料对播种草地牧草的快速生长发育特别有效,草地看麦娘就是这类牧草之一。它在森林地区的天然草地上分布很广,作为栽培的却很少。因为它早春返青快,这在饲草短缺时是很可贵的。它既可广泛地播种在干旱的泥炭沼泽地、河漫滩,又可种在暂时过份潮湿的无水河谷地及低洼草地。 1963年在列宁格勒省,我们作了草地看麦娘的草层改良试验。在一年两次刈割与施无机肥料的条件下,试验中的干草产量为:施无机肥料—每公顷97公担,泥炭沼泽地—
Inorganic fertilizers are particularly effective for the rapid growth and development of sown pasture, which is one of the forage species of meadow grass. It is widely distributed on natural grasslands in forest areas and is rarely grown as a cultivar. Because it rejuvenates early spring, it is very valuable when there is a shortage of forage grass. It can be planted widely in dry peat swamps, floodplains, and in temporarily wet, dry valleys and lowland meadows. In 1963 in the Leningrad Province, we made a grassland to see Amy grass improvement test. Under the conditions of cutting and applying inorganic fertilizers twice a year, the hay production in the trial was: Application of inorganic fertilizers - 97 kt / ha, peat swamps -