Influence of LCO and Th-17 on Production and Quality of Dry Farming Millet and Soil Biological Characters

doi:10.11924/j.issn.1000-6850.casb15090054

Abstract

Abstract: The paper aims to study the influence of nodules factor (LCO), thuricin (Th-17) with different filling water amounts on rhizosphere soil properties at seedling stage, and the grain yield and quality of millet, to determine the role of LCO and Th-17 seed treatment in combining with different filling water amounts in agricultural production and yield increase in dry farming. Under the condition of drought, the authors studied the influence of 9 treatments, which were no seed soaking, Th-17 seed soaking and LCO seed soaking in combining with filling water amount of 0 L/hole, 0.1 L/hole and 0.2 L/hole, respectively, on yield and grain quality of millet. The results showed that: the millet yield of LCO and Th-17 treatment increased by 22.72%- 55.15% and 16.64%-50.70%, respectively, compared with that of the control group. The yield increase order was: L3＞L2＞T3＞T2＞T1＞CK3＞L1＞CK2＞CK1. The quality indexes of grain under LCO and Th-17 seed soaking treatment were lower than that of the control. Compared with those of the control, soil microbial biomass carbon of LCO and Th-17 treatment increased by 35.98%-64.8% and 18.62%-48.08%, respectively; soil microbial biomass nitrogen increased by 17.98%-80.31% and 19.44%-42.94%, respectively; soil catalase activity increased by 4.82%-10.92% and 3.76%-7.84%, respectively; soil invertase activity increased by 43.10%-51.85% and 21.95%-29.82%, respectively; soil urease activity increased by 22.51%-33.66% and 10.19%- 22.68% , respectively. In conclusion, application of LCO and Th- 17 with different filling water amounts could effectively improve the soil properties, promote the growth of plants, and then increase crop yield, and the effect of LCO treatment was greater than that of Th-17 treatment.

CLC Number:

S515

阮慧. Influence of LCO and Th-17 on Production and Quality of Dry Farming Millet and Soil Biological Characters[J]. Chinese Agricultural Science Bulletin, 2016, 32(9): 87-93.

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