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新植火炬松对于种植时施用氮肥通常没有反应,部分原因是施肥处理往往增加了杂草与林木的竞争。不过,通过施肥有使松树加速占领林地,减少阔叶树的竞争,以及缩短轮伐期等的可能性,所以此种处理仍能引起很大兴趣。通过施用氮肥促进新植火炬松生长的关键是抑制杂草。植物之间的竞争引起新植松树水分紧张。因此,有必要进行在种植时使用除草剂与氮肥相结合的试验。
New plantation loblolly usually does not respond to the application of nitrogen fertilizer at planting, in part because fertilization often increases the competition between weeds and trees. However, such treatment is still of great interest due to the accelerated application of fertilization to the coniferous forest, the reduction of competition from broadleaf trees and the possibility of shortening the rotation period. The key to promoting new growth of Pinus taeda by applying nitrogenous fertilizer is to suppress weeds. Competition between plants caused the newly planted pine water stress. Therefore, there is a need for tests that use a combination of herbicide and nitrogen fertilizer at the time of planting.