36 results about "Mugil" patented technology

The invention belongs to the technical field of aquatic livestock reproduction, and relates to a method for promoting the gonad maturing of pseudorasbora parva out of season. The method comprises the following steps of: (1) in the middle and lower reaches of Changjiang River, selecting pseudorasbora parva longer than 40mm and heavier than 1.0g in September to October, and carrying the pseudorasbora parva back with an oxygen bag as a parent; (2) soaking the pseudorasbora parva body in 2-3% saline solution for 5 minutes, and temporarily cultivating for 2 weeks in a circulating aquaculture system, wherein the daily feed is 5-8% of the pseudorasbora parva weight in the temporary cultivation period; (3) transferring the pseudorasbora parva into an aquarium with a circulating filtration and oxygen increasing device, wherein the density is 12 pseudorasbora parvas per aquarium; and controlling the water temperature to 22-24 DEG C, the light intensity on water surface is 400lux, and the illumination time is 16-24h / d; (4) feeding the pseudorasbora parvas in the morning and afternoon everyday; and (5) changing water once every 2 weeks, wherein 1 / 2 of the cultivation water is changed; and the physicochemical conditions of water are: the dissolved oxygen is greater than or equal to 7.5mg / L, the pH is 7.5-8.0, the ammonia nitrogen is less than or equal to 0.1mg / L, and the nitrite nitrogen is less than or equal to 0.01mg / L; and cultivating for 2 months to obtain the pseudorasbora parva with mature gonad development.

The invention discloses a high yield and high efficiency fertilizing method for rain-fed wheat in rice stubble in the northern Jiangsu area. The method specifically comprises the following steps of: (1) additionally applying a phosphorus and potassium base fertilizer, wherein urea of the base fertilizer is reduced in dosage while the date of seeding is postponed; (2) strictly controlling a striking root fertilizer, and applying a jointing fertilizer due to seedlings and rain; and (3) generally applying and heavily applying a booting fertilizer, determining whether a flower raising fertilizer is applied according to the number of spikelets which do not bloom, and taking good fecundity of the spikelets of the ears of wheat, three green leaves obtained by heading a single stem in 25 days as a testing index whether the reviving jointing fertilizer is reasonable or not and the booting fertilizer is sufficient or not. The invention provides the fertilizing method with limiting conditions such as the date of seeding of the rain-fed wheat in rice stubble in the northern Jiangsu area is late, the seeding is slow to emerge, the rice straws are returned in full dose, surface soil moisture content in autumn and winter is relatively poor, the rice is hard to irrigate, and the fertilizer-retaining ability of the soil is poor. The method has the major effects of being large in spike, full in grain and high in yield and overcomes the defects that in the prior art, the base fertilizer has more striking root fertilizer and jointing fertilizer and the booting fertilizer is severely insufficient.