Heavy polymer coated slow-release fertilizer with sulfide as bottom coat

The invention relates to an enveloped controlled release fertilizer and method for preparation which consists of, preheating the urea particles to a predetermined temperature, spraying the molten liquid state sulfur to the urea particles, forming a layer of smooth and compact sulfur-coated urea, charging hot-curing resin component on the sulfur-coated urea for even distribution onto the urea particle surface and fast formation.

Long-acting special controlled release fertilizer for corn and preparation method thereof

The invention relates to a special controlled release fertilizer for corn and a preparation method, which comprises a fertilizer core accounting for 80 to 92% of the total weight of the fertilizer, and a coating layer accounting for 8 to 20% of the total weight of the fertilizer; wherein, the weights of the nitrogenous fertilizer, phosphate fertilizer and potassium fertilizer are calculated respectively as pure nitrogen, phsophorus pentoxide and potassium chlorate, accounting for 25% to 50% of the total weight of the fertilizer with the weight ratio of 2 to 4:1 to 2:1 to 3; the coating layer comprises 69.5 to 93% sulfur, 530% polyethylene wax and 0.5 to 2% flow agent. The sulfur is melted, then is stirred uniformly after adding with montmorillonite, and, is stirred uniformly to form molten sulfur after adding with flow agent. The molten sulfur and polyethylene wax are synchronously sprayed on the surface of the fertilizer core, forming a slow released involucrum layer. The invention has ...

Pesticide composition for regulating corn growth

The invention relates to a pesticide composition for regulating corn growth, comprising diethyl aminoethyl hexanoate, 4-indol-3-butyric acid, a wetting extender and other auxiliary agents. The pesticide composition does not change the strain height and the spike height of a plant, obviously increases the thickness of corn stalks and enhances the vitality, the chlorophyll content, and the like of plant roots. The invention overcomes the defects of spike height increase caused by independently using the diethyl aminoethyl hexanoate, dough stage root and spike leaf premature senesence caused by independently using the 4-indol-3-butyric acid, prevents the corn lodging, and has obvious yield increase effect and outstanding economic and social benefits.

Method for authenticating green-keeping capacity of maize

The invention relates to a method for authenticating the green-keeping capacity of maize. In the method, the green-keeping capacity of the maize is evaluated according to the dual indexes of the green-keeping degree of three ear leaves and the number of green leaves in the mature period. The simple method for authenticating the green-keeping capacity of the maize by using the obvious correlation between the green-keeping degree of the whole-plant leaves and the green-keeping degree of the three ear leaves and between the green-keeping degree of the whole-plant leaves and the number of the green leaves is applied to the selective breeding of the maize.

Pesticidal composition for controlling maize brown spot

The invention relates to a pesticidal composition for controlling maize brown spot, which consists of a systemic bactericide 1-(4-chlorphenyl)-3-(1H-1,2,4-triazole-1-methyl)-4,4-dimethyl pentane-3-alcohol, a polyhydric coordination compound of a protective fungicide manganese ethylene-bis-dithiocarbamate and zinc ions, a wetting agent, other additives and the like, and has the advantages of significantly improving the inhibition activity to the germination of hypnosporangium of germs of the maize brown spot and the effect of controlling field diseases, reducing the using amount of the systemic bactericide, improving the safety to maize seedlings, reducing the use cost, and delaying the occurrence of the resistance to the systemic bactericide, therefore, the pesticidal composition is suitable for seed treatment and field spray treatment so as to control the diseases such as the maize brown spot, rust disease and the like, and has significant economic, ecological and social benefits.

Molecular mark closely interlocked with green-keeping main effect QTL of corn leaf blade

The invention relate to a molecular mark closely interlocked with a green-keeping main effect QTL of a corn leaf blade. By constructing a corn molecular mark genetic map and quantitative character site analysis, the molecular mark closely interlocked with the green-keeping main effect QTL of the corn leaf blade is discovered. The molecular mark is applied to corn breeding and resource identification, and can predict the green-keeping performance of germplasm material leaf blades so as to achieve early prediction and screening of the corn leaf blade with the green-keeping performance of and improve the breeding efficiency.

Long-acting special controlled release fertilizer for corn and preparation method thereof

Bartending tool holder