Fertilizing fish technology (1 Ergebnisse)

paperback. Zustand: New. Paperback Pages Number: 131 Language: Chinese. Fertilization fish is one of the effective measures to improve fish production. only a proper understanding of the principle of fertilization. to master the technical measures for the scientific application of fertilizers. in conjunction with other fish measures in order to maximize pond fish production. The book covers the role of fertilization. the impact of environmental factors on the fertilization. fertilizer application. testing and fertili.…