Corn, Cotton, and Peanut Response to Tillage and Subsurface Drip Irrigation in North Carolina

Abstract

Determining response of agronomic crops to subsurface drip irrigation (SDI) in conventional and reduced tillage systems is important in de ning utility of SDI. erefore, the objectives of this research were to de ne interactions of SDI and tillage with respect to yield and economic return of corn (Zea mays L.), cotton (Gossypium hirsutum L.), and peanut (Arachis hypogaea L.) planted in rotation. Research was conducted in two 4-yr periods (2007-2010 and 2008-2011) in North Carolina using continuous strip tillage vs. continuous conventional tillage without irrigation or with SDI using a crop sequence of 1 yr of cotton, 2 yr of corn, followed by 1 yr of peanut. Corn, cotton, and peanut yields increased with SDI compared with no irrigation regardless of tillage system. Cotton and peanut yields were not a ected by tillage system or the interaction of tillage and irrigation; corn yield was a ected by this interaction. In the second year of corn, yield and economic return were higher in conventional tillage with SDI than strip tillage with SDI. Economic return for the sum of crops in the rotation was a ected by the interaction of irrigation and tillage. Economic return was higher in both periods during each year corn was grown under SDI compared with non-irrigated corn while higher economic returns for cotton and peanut under SDI were noted in one of two periods. When pooled over periods, crops, and tillage, economic return for SDI was US$1,552 ha -1 higher than non-irrigated production over 4 yr.

A new method for assessing plant lodging and the impact of management options on lodging in canola crop production

“…Integrated agronomic practices, including improved irrigation regime (such as subsurface drip irrigation, SDI), optimum planting date, balanced fertilizer management and variety selection, are important strategies for improving crop productivity and resource use efficiency 2 3 17 18 19 20 . All of these management options can alter soil water and nutrient uptake or even the agro–ecosystem conditions and agronomic performance, and then influence the phenology and the critical stage at which the sensitivity to crop lodging occurs 2 17 19 .…”

ANALISIS KEBUTUHAN AIR IRIGASI PADA PERTUMBUHAN TANAMAN KAPAS (Gossypium hirtusum L.) DI KECAMATAN LAMURU, KABUPATEN BONE

“…Pengembangan tanaman kapas di Sulawesi Selatan termasuk di Kabupaten Bone masih terkendala oleh ketersediaan air yang dipengaruhi oleh curah hujan dan kemampuan tanah menahan air, sehingga untuk mengoptimalkan pertumbuhan tanaman kapas perlu dilakukan metode khusus yakni penyediaan air melalui teknologi irigasi (Syahruni et al, 2018). Irigasi adalah alat penting untuk mengurangi periode ketersediaan air yang terbatas (Jordan et al, 2014).…”

Water Distribution and Salts Accumulation in Soil Profile Under Subsurface Drip Irrigation System for Maize Crop

“…Subsurface drip irrigation (SSDI) has many advantages, compared with surface irrigation, The main advantages of SSDI are related to water savings because water applied directly to the crop's root zone not only reduces soil water evaporation losses (Jordan et al, 2014). In designing subsurface drip irrigation systems (SSDI) for row crops, the dimensions of the wetted volume and the distribution of soil moisture within this volume are two of the main factors in determining installation depth and spacing between emitters to obtain an optimum distribution of moisture in the crop root zone.…”