Changes in Qualitative and Quantitative Traits of Anatolian Chestnuts (Castanea sativa Mill.) Fruit Due to Balanced Macro Fertilization

Abstract

The aim of this study was to determined effect of different doses of N: P: K applications on fruit yield and some quality traits in Anatolian chestnut in Bursa (Turkey) ecological condition during 2013 and 2014. In the research, triple experimental zones were determined in a 20-year-old chestnut orchard. Each of these experimental zones consisted of 30 trees. As experimental treatments, 1.1, 2.2, 3.3, and 4.4 lb N tree -1 (N application zone; NAZ), 0.55, 1.1, 1.65, and 2.2 lb P tree -1 (P application zone; PAZ), 1.1, 2.2, 3.3, and 4.4 lb K tree -1 (K application zone; KAZ) were applied except for the control dose. The fertilizer doses were applied by mixing to 30 cm depth of tree canopy soil in April. According to analyses of collected, nitrogen, phosphorus, and potassium affected fruit yield by 30, 31, and 27%, respectively. Total protein increased the fastest at the nitrogen application's zone (NAZ) at an average of 14% rate. The highest increasing in carbohydrate, starch, and invert sugar was recorded as 20, 24, and 18%, respectively at N: P: K application's zone.

Effect of Potassium Sulphate Fertilizer Doses on Sugarcane Growth Yield and Quality Grown in Sudan

“…Fertilization with the major elements of nitrogen, phosphorous and potassium is a necessary agricultural practice, and the cultivated plants need greatly. It also has direct effects on both vegetative growth and fruit growth and clearly affects the quantity and quality of fruits (Toprak, et al 2021). The main characteristics of the central clay plain soils are high clay content, alkaline pH, low organic matter, and poor in both N and P nutrients.…”