Effect of differences in soil tillage and application of organic fertilizers on soil water content and yield of upland rice

Abstract

The research objective was to increase upland rice yield and balancing it with efforts of land conservation to maintain sustainable land productivity. It has been conducted in the research station of Lampung Assessment Institute for Agricultural Technology (AIAT). The treatments were arranged in a factorial randomized block design with three replications. The treatment in the main plot was the method of tillage whereas the subplot was organic fertilizers. The tillage methods were: (1) Maximum tillage and without ditch, (2) Minimum tillage with ditch. The organic fertilizer treatments were control, bio urine plus 10 L ha−1, bio urine plus 20 L ha−1, biodecomposer 10 L ha−1, and biodecomposer 20 L ha−1. The upland rice variety was Inpago 12. The variables observed were soil water content, growth and yields of rice. The results showed that the minimum soil tillage with ditch provided a higher soil water content than the maximum tillage. Likewise, the application of liquid organic matter from local microorganisms (biodecomposer) increased soil water content compared to the control. Application of bio urine plus 20 L ha−1 significantly increased plant height and yield. The highest dry grain was obtained in the treatment of minimum tillage and biodecomposer 20 L ha−1.

Tillage Strategy and Nitrogen Fertilization Methods Influences on Selected Soil Quality Indicators and Spring Wheat Yield under Semi-Arid Environmental Conditions of the Loess Plateau, China

“…The empty aluminum box was weighed first, and the fresh soil sample was then put in the aluminum box, which was weighed and transferred to an oven. After drying to a constant weight at 105-110 • C, the weight of the dry soil was determined, and the percentage of water weight was then calculated to obtain the SWC [18].…”

“…The most operative strategy is improving the organic input, for instance with the implementation of organic compost or manure [15,16] and a no-till system [17]. Barus et al [18], Peng et al [19], and kai et al [20] verified that different organic inputs, such as no-till, and manure application significantly improved soil quality attributes and crop yield. Organic fertilization and a no-till strategy have great value for increasing soil fertility indicators [21].…”