Growth and nutrition of Pinus strobus L. seedlings as influenced by nitrogen, phosphorus, and potassium (in Iraq)
1986
Al-Naqib, A.I. (Salahaddin Univ., Arbil (Iraq). Coll. of Agric.)
Plastic pots with low nutrient sandy loam soil were used to grow Pinus strobus L. seedlings in greenhouses. Three levels of each N,P and K were applied in a factorial completely randomized design
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