11results about How to "Long growth cycle" patented technology

The invention provides an annual crop rotation method for soybeans, rice and oilseed rapes, which comprises the following steps: continuously cropping soybeans, rice and oilseed rapes (spring soybean-late rice-oilseed rape annual crop rotation system) on the same land in the same year (within 12 months), and regulating and controlling rhizosphere local nutrients of crops by adopting a lateral deep fertilization technology, so that the soil health is improved, and the crop yield is increased. The multiple cropping index is increased, high yield of grain and oil feed is promoted, and multiple improvements of environmental and economic benefits are realized. According to the technical scheme, through crop rotation, a single rice continuous cropping mode is broken through, extension of root systems in the growth process of soybeans and oilseed rapes can be utilized, the soil structure is improved, the air permeability and the water-retaining property of soil are enhanced, an excellent growth environment is provided for succeeding crops, the comprehensive yield of rice, soybeans and oilseed rapes is increased, and high economic benefits are achieved; in addition, in a crop rotation system, application of lateral deep fertilization is closely combined with growth characteristics of soybeans, rice and oilseed rapes, and the goals of increasing yield and efficiency, saving cost and protecting environment are achieved.

The present invention belongs to the technical field of water treatment and recycling, and specifically relates to an odor-removing water-purifying algae species and its application. The odor-removing water-purifying algae species used in the present invention can achieve the combined removal of odor substances and environmental hormones in the tail water system while purifying nitrogen and phosphorus pollutants in the aquaculture system, and can solve the problem of odor substances and toxin accumulation in the tail water in an eco-friendly manner. The odor-removing water-purifying algae species and its preparation of the present invention are obtained by screening Oocystis ovale Oocystis sp. YTLJ‑NAPE‑RC3 was pre-cultured and expanded, and then vacuum-freeze-dried to obtain the corresponding algae powder, which was then mixed with an additive to prepare the product. Oocystis algae YTLJ‑NAPE‑RC3 was deposited in the General Microbiology Center of China Microbiological Culture Collection Administration, with the deposit number CGMCC No.40455.

The invention provides a compound beta-cesium-cadmium-silicon-sulfur and a beta-cesium-cadmium-silicon-sulfur nonlinear optical crystal as well as a preparation method and application thereof, the chemical formula of the compound is beta-Cs2CdSi4S10, the molecular weight of the compound is 755.04, the chemical formula of the crystal is beta-Cs2CdSi4S10, and the molecular weight of the crystal is 755.04. The beta-Cs2CdSi4S10 crystal belongs to a tetragonal crystal system, the space group is I-4, the cell parameters are as follows: a = 8.4233 (7), c = 14.6136 (12) and the unit cell volume is 1036.86 (19) 3, the crystal is prepared by adopting a vacuum tube sealing method, and the frequency-doubled effect of the beta-Cs2CdSi4S10 crystal measured by using a kurtz-Perry method is about 1.1-1.2 times that of AgGaS2 (AGS); the band gap of the crystal measured by an ultraviolet-visible diffuse reflection spectrum is 4.21 eV, the ultraviolet cut-off edge is 254 nm, and the infrared transparent range is greater than 8 [mu] m. The crystal has the advantages of simple preparation process, short growth period and avoidance of raw material leakage and pollution. The method has important application in the fields of atmospheric remote sensing and communication, and can be used for manufacturing a frequency down-conversion device for high-power laser output application.

The invention provides a method for preventing and controlling tomato bemisia tabaci by using nesidiocoris tenuis, and relates to the technical field of pest prevention and control. The method comprises the following steps: S1, raising seedlings of tomatoes, and transplanting 20-25 days after raising the seedlings; s2, according to an intercropping mode that two rows of kidney bean planting belts are arranged every 3-4 rows of tomatoes, the kidney beans are arranged in a staggered mode and planted in different periods; s3, after tomato seedlings are planted, the density of the nesidiocoris tenuis in the kidney bean planting zone and the density of bemisia tabaci on tomato plants are monitored in real time, and the nesidiocoris tenuis is supplemented according to the monitored value; s4, performing field management. According to the method, the kidney beans and the tomatoes are intercropped, the kidney beans are used for providing a good survival and inhabitation environment for the nesidiocoris tenuis, good disease and pest prevention and control can be achieved in the whole growth period of the tomatoes, meanwhile, the yield of the tomatoes and the kidney beans can be improved, and economic benefits are increased.

The present application relates to a series of compounds methyl trifluoroborate and methyl trifluoroborate nonlinear optical crystal and preparation method and use, the molecular general formula of the series of compounds is A3[CH3BF3]X2, wherein A=NH4, K, Rb, Cs, X=[NO3], Cl, Br, the molecular weight is 207.86-641.37, top seed method is prepared, orthorhombic system, space group Cmc 21 (No.36), the cell parameter is a=11.9141 (17)-12.6254 (2) Å, b=8.1556 (12)-8.4654 (17) Å, c=10.9621 (14)-11.5625 (15) Å, α =90, β =90, γ =90, Z =4, V=1065.2 (3)-1261.9 (1) Å 3 The series of compounds methyl trifluoroborate nonlinear optical crystal obtained by the method has the advantages of wide light transmission waveband, stable physical and chemical properties, moderate mechanical hardness, not easy to break, easy to cut, polish processing and preservation and the like.

The invention provides a multistage combined leaching method for ultralow-grade laterite-nickel ore, which comprises the following steps: carrying out high-pressure acid leaching treatment on raw ore pulp of the laterite-nickel ore to obtain high-pressure leaching tailings containing iron, aluminum and magnesium and high-pressure leaching liquid containing nickel, cobalt and manganese, and the nickel content in the raw ore pulp of the laterite-nickel ore is less than 1.0%; a mixed solution obtained after the high-pressure leaching solution, the laterite-nickel ore raw ore pulp and an acid solution are mixed is subjected to multi-stage normal-pressure leaching treatment, a final-stage concentrated normal-pressure leaching solution and final-stage concentrated normal-pressure leaching slurry are obtained after concentration treatment, and the ore pulp concentration of the final-stage concentrated normal-pressure leaching slurry is the same as that of the laterite-nickel ore raw ore pulp; the final-stage concentrated normal-pressure leaching solution and the high-pressure leaching tailings are sequentially subjected to circulating leaching, multi-stage pre-neutralization treatment, countercurrent washing treatment, iron, aluminum and chromium removal treatment and MHP precipitation treatment, and a cobalt nickel hydroxide product is obtained; and the final-stage concentrated normal-pressure leaching slurry is returned to the high-pressure acid leaching treatment, so that the scaling rate of the conventional high-pressure acid leaching treatment can be effectively inhibited, and the production period is prolonged.

The invention discloses an aminomethyl ammonium phosphonate compound, a birefringent crystal thereof, and a preparation method and application of the birefringent crystal, and belongs to the technical field of crystal materials. The chemical formula of the aminomethyl ammonium phosphonate compound is NH4PO3CH2NH3, and the structural formula of the aminomethyl ammonium phosphonate compound is shown as a formula 1 in the specification. The chemical formula of the birefringent crystal of the aminomethyl ammonium phosphonate compound is NH4PO3CH2NH3, and the birefringent crystal belongs to an orthorhombic crystal system. According to the birefringent crystal of the large-size aminomethyl ammonium phosphonate compound, the crystal blank is oriented according to crystallographic data of the crystal, the crystal is cut according to the required angle, thickness and section size, and the light passing surface of the crystal is polished, so that the birefringent crystal can be used as a birefringent device; the birefringent crystal of the aminomethyl ammonium phosphonate compound has a birefringent index of 0.048 at 546 nm and an ultraviolet absorption edge shorter than 200 nm, and has the advantages that a light-transmitting wave band reaches a deep ultraviolet region, physical and chemical properties are stable, deliquescence is not easy, processing and storage are easy, and the like.

The application discloses a gene for regulating growth and development of tomatoes, a knocking-out method and application, and the nucleotide sequence of the gene is shown in SEQ ID NO.2. The knocking-out vector is constructed by designing CRISPR / Cas9 guide RNA for the PHO2 gene in the tomatoes and utilizing a pCC carrier. The knocking-out plant of the PHO2 gene is obtained by using tissue culture and agrobacterium infection, and the PHO2 gene is identified to be knocked out by Sanger gene sequencing. The growth cycle of the tomatoes can be prolonged and the continuous flowering and fruiting capacity can be maintained by knocking out the gene of SEQ ID NO.2.

The utility model relates to a greenhouse technical field especially relates to a kind of photovoltaic light-heat collaborative water circulation heat storage systems for plateau greenhouse, it include: pedestal, the pedestal top middle part is equipped with sunken groove, the sunken groove middle part is provided with heat storage pond, the sunken groove top rear side is fixedly connected with heat preservation wallboard, the heat preservation wallboard top is fixedly connected with heat preservation inclined roof, the heat preservation inclined roof is provided with light-transmitting framework between sunken groove front end, the top of the heat preservation inclined roof is fixedly installed with photovoltaic board, the back of the photovoltaic board is provided with heat recovery component, the front end of the heat preservation wallboard is evenly fixedly installed with a plurality of water storage bags, the heat recovered by heat recovery component is stored in the water in a plurality of water storage bags, when temperature is lower than the set threshold at night, hot water in water storage bag is injected into heat storage pond, the utility model provides a kind of photovoltaic light-heat collaborative water circulation heat storage systems for extending the growth cycle of agricultural operation.

The application discloses application of leptin in preparation of a medicine for promoting hair growth, and belongs to the technical field of biological medicines. The leptin provided in the application is expressed in hair matrix cells of a growing hair follicle, activates a JAK-STAT signal path, and induces continuous proliferation of hair matrix cells, so as to promote the hair follicle to enter the growing period in advance, prolong the time length of the growing period of the hair follicle, promote differentiation of the hair matrix cells into keratinocytes, maintain continuous growth of the hair shaft, and further prolong the length of the hair shaft.

The invention relates to a method for planting poria cocos in a greenhouse. According to the method, greenhouse planting of poria cocos is achieved, the planting period is shortened, two-crop planting can be achieved in one year, influences of natural disasters such as weather are effectively avoided, the growth period of poria cocos is prolonged, field management and daily checking of the growth speed of poria cocos are facilitated, normal growth and effective management and control of poria cocos are guaranteed, and the yield and quality of poria cocos are improved. The physical prevention and control and chemical prevention and control are combined to prevent and control diseases and pests, so that the harm of diseases and pests can be effectively reduced, the problems of tuckahoe rot, underground pest harm, over-standard pesticide residue and the like are prevented, and the quality and economic benefits of tuckahoe products are improved.