Effects of rice husk compost application on soil quality parameters in greenhouse conditions

Abstract

Effects of rice husk compost (RHC) on some soil quality parameters under greenhouse conditions were investigated. Experiment were conducted in a randomized plot design with different application doses of RHC (0, 3, 6 and 9%) into surface soil (0-20 cm) with three replications in a greenhouse of Agricultural Faculty in Ondokuz Mayıs University. RHC application generally improved the soil quality parameters according to the control treatment during the experiment carried out with growing tomato plant in the greenhouse in 2010. The soil organic matter (OM) contents significantly increased by the application of RHC in the following order; 9%>6%>3%>0%. While RHC applications in the greenhouses significantly reduced pH contents of soils according to the control, the RHC application increased the values of respiration rate (CO2), EC, NO3-N and available phosphorus (P). While the exchangeable Ca values of soils generally decreased, the exchangeable Mg and K values generally increased according to the control with RHC application. Bulk density (BD) values in the greenhouse were reduced with RHC application doses in the following order 0%>3%> 6%>9%. The values of field capacity (FC), permanent wilting point (PWP) and available water capacity (AWC) generally increased according to the control with the application of RHC dosses in the following order 9%>6%>3%. The highest positive correlations among the physical, chemical and biological properties were found between OM and PWP (0.924**), AWC and FC (0.907**), OM and FC (0.897**), CO2 and PWP (0.862**), PWP and FC (0.791**); while the highest negative correlations were found between BD and FC (-0.854**), BD and PWP (-0.871**), BD and OM (-0.868**), BD and CO2 (-0.838**), BD and P (-0.821**), Ca and FC (-0.812**). The highest tomato yield (7.77 ton/da) was obtained with the 9% of RHC application. RHC application to the soil in greenhouse generally improved soil quality and tomato yield.

Effects of some organic materials on bicarbonate extractable phosphate content of soils having different pH

“…Candemir and Gülser (2010) reported that tobacco waste application into a clay soil increased soil pH after 16, 23 and 30 months of the application in a field study. However, Demir and Gülser (2015) reported that 3, 6 and 9% applications of rice husk compost into moderately alkaline soil decreased soil pH. …”

“…According to the control soils, bicarbonate extractable mean P contents of Tepecik, Kurupelit and Çetinkaya soil series significantly increased 57.9, 41.8 and 39.1%, respectively (Table 4). Demir and Gülser (2015) reported that application of 9 % rice husk compost into soil increased available P content from 60 to 120 ppm, significantly. According to the statistical analysis of data given in Table 4, bicarbonate extractable P values were significantly different in soil series at 0.01 level.…”

Effects of Different Growing Media on Plant Growth and Nutrient Contents of Petunia (Petunia hybrida)

“…Under this circumstances, using of organic manures such as compost, vermicompost, barnyard manures and biofertilizers is ecofriendly, easily avaliable and cost effective. It is reported that organic materials provide nutrient conversion of organic fertilizer and mineral fertilizer combination, protection of soil moisture, increasing of cation exchange capacity, improving soil physical and biological properties and providing control of erosion [6][7][8][9][10]. Among the organic materials peat often enchances aeration and water retention [11].…”

The evaluation of basal respiration and some chemical properties of soils under cover crop treatments in a cherry orchard

“…Cover crops (CCs) is defined as crops that provides soil protection, seedling protection, and soil improvement between vines in vineyards and trees in orchards between periods of normal crop production, or between periods of normal crop production (SSSA, 2001). Cover crop management systems affect soil quality variables (Demir and Gülser, 2015;Çerçioğlu et al, 2019) and health and thereby orchards growth and productivity. CCs also are precisely grown to prevent loss of nutrients in deep layers through surface runoff and leaching (Kaye and Quemada, 2017).…”