نتایج جستجو برای: planting density
تعداد نتایج: 422095 فیلتر نتایج به سال:
In this study, transplanting cotton seedlings grown in artificial substrate is considered due to recent increased interest in cotton planting labor saving approaches. The nursery methods used for growing cotton seedlings affect root growth. However, the underlying functional responses of root growth to variations in cotton seedling transplanting methods are poorly understood. We assessed the re...
Changes in climate are predicted to significantly affect the productivity of trees in the Great Lakes region over the next century. Forest management decisions, such as initial stand density, can promote climatic resiliency and moderate decreased productivity through the reduction of tree competition. The influences of climate (temperature and precipitation) and forest management (initial stand...
This article follows on from two articles published in 2014 and 2018 the same trial conducted an oil palm plantation Nigeria which was aimed at assessing a range of different planting distances between palms (7.5 to 9.5 m) equilateral triangle design. The climate region is very stable, with seasons average 2000 mm rainfall per year. soil desaturated ferralitic type, sandy surface, deep, without...
Growth andmortality of coast Douglas-fir (Pseudotsugamenziesii var.menziesii) were studied for 25 years after planting seedlings at 1–6-m spacings on a site of moderate quality in the western Cascade Mountains of Washington. Responses were compared to those from two other studies representing high and low site qualities. Third-year height did not differ among spacings (P = 0.80), providing no e...
To evaluate the effects of tillage and planting systems on soil physical properties, grain yied and its components, and milling recovery of rice (cv. Hashemi), an experiment was conducted at Rice Research Institute of Iran in 2017 and 2018 cropping seasons-using split plot arrangements in randomized complete block design with three replications. The experimental factors were; tillage methods (m...
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