Soil Texture and Cultivar Effects on Rice (Oryza sativa, L.) Grain Yield, Yield Components and Water Productivity in Three Water Regimes

Abstract

The objective of this study was to determine the effects of water regime/soil condition (continuous flooding, saturated, and aerobic), cultivar (‘Cocodrie’ and ‘Rondo’), and soil texture (clay and sandy loam) on rice grain yield, yield components and water productivity using a greenhouse trial. Rice grain yield was significantly affected by soil texture and the interaction between water regime and cultivar. Significantly higher yield was obtained in continuous flooding than in aerobic and saturated soil conditions but the latter treatments were comparable to each other. For Rondo, its grain yield has decreased with soil water regimes in the order of continuous flooding, saturated and aerobic treatments. The rice grain yield in clay soil was 46% higher than in sandy loam soil averaged across cultivar and water regime. Compared to aerobic condition, saturated and continuous flooding treatments had greater panicle numbers. In addition, panicle number in clay soil was 25% higher than in sandy loam soil. The spikelet number of Cocodrie was 29% greater than that of Rondo, indicating that rice cultivar had greater effect on spikelet number than soil type and water management. Water productivity was significantly affected by the interaction of water regime and cultivar. Compared to sandy loam soil, clay soil was 25% higher in water productivity. Our results indicated that cultivar selection and soil texture are important factors in deciding what water management option to practice.

Heavy metal levels, physicochemical properties and microbial diversity of soil matrix from university solid waste collection sites in Benin City, Nigeria

“…They are coarse in texture and drain easily and quickly after the rain. It is lower in moisture-holding and nutrient-holding capacity than another type of soil (Dou et al, 2016). Sand negatively correlates silt and Ni in this study.…”

Textura Do Solo: Conceitos E Aplicações Em Solos Arenosos

“…De acordo com Galbieri et al (2014), no Estado de Mato Grosso, a produtividade de algodão não difere entre solos argilosos e de textura média. Dou et al (2016), relataram que solos argilosos possuem maior matéria orgânica quando comparados aos solos arenosos, isto ocorre devido à maior proteção física oferecida pela argila, ocorrendo menores perdas de matéria orgânica e consequentemente maior capacidade de água disponível à planta, o que proporcionou neste estudo, um acentuado aumento na produtividade da cultura do arroz.…”

Effect of Irrigation Regimes and Soil Texture on the Potassium Utilization Efficiency of Rice

“…Increasing the clay content could improve the soil fertility [58]. A high biomass was recorded in rice grown in high clay soil than in rice grown in low clay soil [58][59][60]. In the present study, S (60%) showed a higher value for the dry weight of the leaves, stem, and spikelet, leading to the higher dry weight of the shoots than those in S (50%) and S (40%) ( Figure 5).…”

“…In addition to irrigation regimes, soil type could be another important factor that affects the biomass of rice. Increasing the clay content could improve the soil fertility [58]. A high biomass was recorded in rice grown in high clay soil than in rice grown in low clay soil [58][59][60].…”