Talking about the feeding method of arowana

Arowana's survival requires weak acidic to neutral water quality, hardness requires soft water. PH value between 6.5-7.5, DH value of 3-12. Water temperature can be 24-28 degrees Celsius. The nitrite content and the chlorine content are preferably zero.

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Ventilation control in fertilizer fermentation

Control of Ventilation in Fertilizer Fermentation The process of using animal husbandry to treat livestock manure and other organic wastes as bio-organic fertilizer is aerobic fermentation, which requires certain ventilation and ventilation frequencies. Ventilation .......

Northern greenhouse cultivation lotus fog

Lotus mist adaptability, strict requirements on soil conditions. It can be planted in solar greenhouses or multi-span greenhouses, with high ornamental value and economic benefits. Cultivation Techniques:

1, colonization. Usually from April to May, 23 meters or 34 meters spacing is.......

Pear bollworms fight for protracted war

One, harm:

Pear bollworms harm a variety of fruit trees and is also one of the international quarantine objects. Miscellaneous food, there are more than 150 species found. In recent years, the production of kiwifruit, apples, pears, peaches, plums, grapes, cherries and other fruit .......