The enigmas of agricultural terms are as follows:
Ammonification, pipe drainage, Eight-character Constitution, Household Contract Production, Coated Fertilizer, Soil Conservation, Moisturizing Seedling Raising, Marginal Effect, Convenience Map, Disease Period Index, Glass Fertilizer, Sowing Materials, Sowing Area, Stratification Treatment, Long-term Unfamiliar Advantage, Chen Yong Agricultural Books, Soil Formation Factors, and so on. Single plant selection, nitrogen cycle, rice bakanae disease, rice sheath blight, contour planting, contour planting, local varieties,
ground radiation, surface irrigation, underground fertilizer and water, underground irrigation, groundwater level, withering coefficient, top harrowing, bean crops, control advantage, multiple fruits, permafrost, diversified management, multiple advantages, secondary flowering and germination test. Humidification, covering crops, compound fertilizer,
compound bacterial fertilizer, compound hybridization, multiple cropping area, multiple cropping index, improved varieties, high-temperature compost, alternate-year results, extra-root fertilizer, cultivated land area, cultivated soil, farming system, industrial wastewater, ditch head protection, cereal crops, nitrogen-fixing blue algae, pipe-chain waterwheel, irrigation quota, irrigation management, irrigation area, irrigation.