Effect of Fertilization and Irrigation Water Levels on Summer Squash Yield Under Drip Irrigation

Abstract

The objectives of the study were to test the effect of two methods of applying nitrogen fertilizer (fertigation and broadcasting), two irrigation levels and two irrigation systems surface and subsurface drip on summer squash production in the sandy soils The main results of the study could be summarized as follow:-• Applying the nitrogen fertilizers through two irrigation methods (surface and subsurface drip irrigation) was more efficiency than broadcasting fertilizers. • There are a slightly increase in crop growth, fresh yield, and both of water and nitrogen use efficiency in subsurface drip more than in surface drip. • Subsurface drip irrigation has the best water distribution in the soil. • The highest value of fertilizer use efficiency (35.60 kg) yield/kg nitrogen was obtained with treatment I2L2F2.

Polymer and deficit irrigation influence on water use efficiency and yield of muskmelon under surface and subsurface drip irrigation

“…Moreover, subsurface drip irrigation (SDI) is capable of maintaining a higher soil water content in the crop root zone and providing favourable conditions for improving plant growth. SDI is recognised by having many significant benefits over surface drip irrigation (DI), such as an increased yield, reduced applied water and improved water productivity (Devasirvatham 2009;El-Gindy et al 2009;Ayars et al 2015). Also, SDI has the potential to reduce deep percolation, surface evaporation losses, and, in turn, minimise the seasonal water usage (Aliasghar et al 2017).…”

Influence of Salicylic Acid on Cucumber Plants under Different Irrigation Levels

“…Water deficit is one of the most common non-biotic stresses that effects on growth and development of plants (Siamak et al, 2014). Early investigations reported that water deficit led to decreasing leaves area, main stem length, fruits number and fruits yield (El-Gindy et al, 2009 on squash, Sahin et al, 2015 on cucumber), Also, leaves fresh weight (Ibrahim and Selim, 2010 on squash). In addition, drought led to reduction of chlorophyll content on cantaloupes (Ali et al, 2014).…”