44results about How to "Increase the number of effective spikes" patented technology

The invention provides a preparation method of a microbial inoculum JF for preventing and treating corn stalk base rot, which is characterized by comprising the following steps: preparation of 1S microbial inoculum powder: activating activated Bacillus sonorensis B-2, Bacillus paralicheniformis (Bacillus paralicheniformis) B-26, Bacillus sonorensis (Bacillus sonorensis) N-16, Bacillus pumilus (Bacillus pumilus) N-17 single colonies were cultured by seed and fermented, respectively, The cultured four bacterial liquids are adsorbed with an adsorbent to obtain a microbial inoculum powder; the four microbial inoculum powders are mixed according to a mass ratio of 1:1:1:1 to obtain a mixed powder; the preparation of 2S microbial inoculum JF: The microbial inoculum powder prepared in step 1S is mixed with auxiliary materials to prepare the microbial inoculum JF. The microbial inoculum JF prepared by the invention can effectively improve saline-alkali land and prevent corn stalk rot in saline-alkali land.

The invention relates to a lodging and senility resisting, high photosynthetic efficiency and yield increasing regulator for corn, and a preparation method and an application thereof. The regulator contains 5-aminolevulinic acid, 2-(3,4-dichlorophenoxy)triethylamine and ethephon, and preferably contains an activator and a spreader, and the activator and the spreader are selected from one or more of tween20 and tween60. The regulator can substantially enhance the low temperature cold injury, high temperature, drought and low light stress resistance of corn, increases the effective spike number, the number of grains per spike and the thousand-grain weight of the corn, and increases the output of the corn by 20% or above. The regulator has the characteristics of low cost, use convenience and less field residual, is easy to promote and apply, and has an active promotion effect on Chinese corn production.

The invention provides an acidic monoammonium phosphate fertilizer composed of the following substances including monoammonium phosphate, citric acid and an anionic active agent. A preparation method of the acidic monoammonium phosphate fertilizer comprises the steps of sequentially adding the smashed monoammonium phosphate, citric acid and anionic active agent into a tank, and sufficiently stirring and uniformly mixing to obtain the acidic monoammonium phosphate fertilizer. The acidic monoammonium phosphate fertilizer disclosed by the invention is suitable for all crops; and because of being an acidic fertilizer, the acidic monoammonium phosphate fertilizer is suitable for application in alkaline soil and capable of effectively improving saline soil and has the optimal application effect on crops such as rice liking an acid environment.

The invention provides a microbial bacterial agent YF, which contains four bacterial strains; the four bacterial strains are Bacillus sonorensis B-2 and Bacillus paralicheniformis B-2 respectively. 26. Bacillus sonorensis N‑16 and Bacillus pumilus N‑17, the four strains are all preserved in the General Microorganism Center (CGMCC) of China Committee for the Collection of Microbial Cultures. The date is March 5, 2020; among them, the deposit number of Sonora desert Bacillus B-2 is CGMCC NO.19454, and the deposit number of Bacillus paralicheniformis B-26 is CGMCC NO.19449, Sonora Desert The preservation number of Bacillus N-16 is CGMCC NO.19448, and the preservation number of Bacillus pumilus N-17 is CGMCC NO.19450; the microbial bacterial agent provided by the present invention can effectively prevent corn stalk rot in saline-alkali land and improve saline-alkali soil Quality, significantly promote the growth of corn.

The invention relates to the technical field of rice planting, in particular to a rice machine-directed growth-promoting granule and its preparation method and application, which consist of preservatives, insecticides, fungicides, oxygen enhancers, plant growth regulators, trace elements , rodent repelling agent, filler, nano microsphere of natural polysaccharide, coating agent and binder. Active ingredients such as pesticides and fertilizers in the granules of the present invention are separated from the seeds to avoid direct contact with the inhibitory and toxic effects on seed germination and seedling tissue growth. For large areas of rotten seeds and lack of seedlings caused by seed rot and fermentation, the emergence rate of rice mechanical direct seeding can be increased by 18.33%-26.83%, and the seedling rate can be increased by 63.07%-109.51%.

The invention discloses a fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency. The method comprises thesteps of 1, field pretreatment, wherein an amides systemic herbicide is applied after preceding crops are harvested and before seedling slinging; 2, dry rice-nursery, wherein hybrid rice is selected,seeds are aired on a clear day before sowing, and the seeds are placed in flowing clear water and soaked in the daytime and are fished out, spread and aired in the night; 3, fertilizer deep application, wherein deep application is conducted on a base fertilizer, broadcasting is conducted on an additional fertilizer, the base fertilizer is a nitrogen-phosphorus-potassium mixed fertilizer, deep application can also be conducted after nitrogen, phosphorus and potassium fertilizers are mixed, and the later additional fertilizer is mainly urea; 4, filed seedling slinging, wherein the fertilizer deep application is completed, irrigation field steeping is conducted before seedling slinging; 5, water management, wherein at the seedling stage, a shallow-water layer is kept, at the tillering stage,intermittent irrigation is conducted, and at the yellow ripening stage, air-drying is conducted after the dough stage; 6, filed management. The fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency is easy to conduct and convenient to operate, effectively reduces ammonia volatilization and nitrogen loss of a no-tillage rice field, improves the nitrogen use efficiency of the no-tillage rice field, and increases the yield of the no-tillage rice field.

The invention provides a growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield. The growth regulating agent is prepared from the following components: 2,4-epibrassinolide, indole-3-acetic acid, zeatin and water, and the pH value is 5.8 to 6.5. By using the growth regulating agent provided by the invention, in hybrid rice seed production and sterile line seed reproduction, the productive tiller percentage of a sterile line can be improved, so as to increase the number of productive ear, floret degeneration can be reduced, so as to increase kernels per spike, grouting is promoted, so as to improve ripening rate and / or increase thousand seed weight, and finally the hybrid rice seed production yield and the sterile line seed reproduction yield are improved. The growth regulating agent is simple and easy in preparation method, is good in product stability, strong in efficiency, safe and reliable, free of side effect and is suitable for popularization and application in hybrid rice seed production.