Plant nutrients such as potassium (K) may be limited in soil systems and additions (i.e., fertilizer) are commonly required.Glaucony is a widely distributed and abundant marine-derived clay mineral present in soils worldwide Necklaces which may serve as a source of potassium.The South Island of New Zealand contains numerous deposits of glaucony-ric
This study examines empirically the effect of fiscal policy and trade openness on economic growth in Indonesia for the period 1990-2015.Fiscal policy includes government spending on infrastructures, human resources, and routine spending, while tax revenue and foreign loans is as source of financing.This study finds government spending on infrastruc
The present study was conducted in the years 2007- 2008, after 6-year-long experiments in the cultivation of spring barley in a crop rotation system and in monoculture.The other experimental factor was the spring barley protection method.Intensive protection involved comprehensive treatment of barley (in-crop harrowing, seed dressing, application o