CN101637082A

CN101637082A - Patterned culture technique for new corn strain

Info

Publication number: CN101637082A
Application number: CN200810138857A
Authority: CN
Inventors: 徐志卿
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-01
Filing date: 2008-08-01
Publication date: 2010-02-03

Abstract

The invention provides a patterned culture technique for a new corn strain, which belongs to the technical field of crop culture technique. Aiming at the biological characters of the new corn strain,the culture technique including soil selection, reasonable thick planting, proper early sowing, scientific fertilization, water-saving irrigation and supplementary pollination is adopted to achieve the aim of increasing the yield. The culture technique has strong pertinence, is advanced and practical, and has wide promotion and application prospects.

Description

Patterned culture technique for new corn strain

Technical field

The invention belongs to the arviculture technical field, especially relate to a kind of patterned culture technique for new corn strain.

Background technology

At present, maize culture is still continued to use traditional culture technique mostly, can not accomplish that the breeding good method is supporting, therefore, seriously restricted the raising of corn yield, mainly there is following problem in traditional maize culture technology: the one, and density is unreasonable, is not to determine rational density according to breediness, soil condition, there was rare or overstocked phenomenon in planting density, caused the photo-thermal of unit are, water and fertilizer condition not to utilize fully; The 2nd, seeding quality is poor, and sowing time, seeding quantity, seeding method are very careless, causes and causes the disconnected ridge that is short of seedling, and it is uneven to emerge, and adds untimely thinning, final singling, and seedling is crowded mutually, and seedling quality is poor; The 3rd, field management is extensive, and liquid manure uses not science, can not accomplish precision management.All these problems are exactly owing to lack the corresponding cultivation techniques standard of a whole set of standardization, medelling.

Summary of the invention

Purpose of the present invention is exactly the problem that exists in traditional maize culture technology in order to solve, biological character at new corn strain, the culture technique of a kind of standardization, medelling is provided, and further every culture technique of standard new corn strain reaches the purpose that improves corn yield.

The present invention is achieved by the following technical solutions.This patterned culture technique for new corn strain comprise select soil, rational close planting, sowing date for early sowing, apply fertilizers scientifically, water-saving irrigation, seven supporting culture techniques of supplementary pollination:

1, to select this new corn strain be shorter, a wide short upper punch of blade of plant type to soil, the new lines that is fit to dense planting should select fertile soil deep or the field soil plantation of pouring condition is arranged, and strengthens the middle and later periods to supply water for fertile ability, guarantee that late growth stage does not take off fertilizer, thereby obtain high yield.

2, rational close planting is in the more fertile plot of soil, and mu density in planting 4000-4500 strain is advisable, and has both guaranteed under this density conditions that ontogeny was good, can accomplish the population growth unanimity again.

3, generally sowing before June 10 of sowing date for early sowing summer sowing corn, the mulch film seedling raising and transplanting of plastic film mulching cultivation can be done sth. in advance sowing in 7～10 days, and will accomplish to guarantee can prevent the disconnected ridge of being short of seedling by 2 of every bunch planting seeds, the favourable healthy seedling final singling of selecting and remain during thinning avoids seed directly to contact with chemical fertilizer.

4, apply fertilizers scientifically and need the requirement fertilising of 2 kilograms of 3 kilograms of purity nitrogens, 1 kilogram of phosphorus pentoxide and potassium oxides according to 100 kilograms of seeds of general every production.The base manure amount of application accounts for 70% in the high-yield culturing, and topdressing accounts for 30%, and the whole bottom application of phosphate fertilizer are on last season crop, and the nitrogen application principle is attacked the 60-70% that stalk fertilizer accounts for total topdressing amount, attacks ear manuer and accounts for 30-40%, attacks granulated fertilizer and uses before weaving silk, and is no more than 10%, the potash fertilizer bottom application.

5, in the water-saving irrigation corn growth stage generally to water 4-5 water for well.Make moisture in the soil 40-50 side/mu before broadcasting; Jointing booting water 35-40 side/mu; Take out the hero water 40-50 side/mu of blooming; Grouting water keeps that in weaving silk back about 10 days sufficient moisture is arranged in the soil.

6, supplementary pollination during every morning 10-11, is caught up with milpa in the pollination phase, carries out artificial supplementary pollination, and continuous 2～3 times, can improve the fruit ear ripening rate, reduce bald degree.

When 7, gathering in the crops the most of bract flavescence leaf of fruit ear, at this moment the abundant complete ripeness of sign seed gathers in the crops the thousand kernel weight maximum in good time; Blue or green bud results, seed are failed maturation, and output obviously reduces.

The technical solution used in the present invention at the biological character design culture technique scheme of this new corn strain, has been found out a cover patterned culture technique.Show by to the cultivation of new corn strain Implementation Modes, to have rational group structure through the multiple spot result of the test, made full use of photo-thermal, water and fertilizer condition, make individual growth more healthy and stronger, colony is more reasonable, so that this kind has been given play to bigger yield potential.In the test region, under equal cultivation condition, than traditional planting technology corn yield increasing 21%.The technology of the present invention has bigger promotional value in the summer corn district.

Embodiment

Experimental field be located at boundary lake town, Yinan County, Shandong Province, 100 mu of areas, 100 mu in contrast field, the test kind is this new corn strain, and the contrast field is according to traditional culture technique kind planting management, and the time is 2006 to 2007 2 years.

1, to select experimental field and contrast field to be the fertile soil that is positioned at east, village, the Hong Shi village, boundary lake town deep and have water to water the plot of condition, soil fertility uniformity for soil.

2, rational close planting mu density in planting 4200 strains.

3, sowing date for early sowing summer sowing corn is generally in sowing on June 6, and 2 of every bunch planting seeds also will be accomplished to guarantee in ground.

4, apply fertilizers scientifically and use sufficient base manure.Mu is executed 1800 kilograms of farmers''s high-quality farmyard manures during whole ground, and the deep placement ternary of ditching simultaneously (nitrogen, phosphorus, potassium respectively contain 15%) composite fertilizer makes base manure for 40 kilograms, with level of increasing soil fertility and feeder capability; Early execute seed manure.Impose seed manure when thinning or after the final singling early, promote healthy and strong growth in seedling stage, in 3～4 leaf phases, every mu imposes 10 kilograms in urea; Heavy dressing ear manuer, mu is executed urea and is reached 20～25 kilograms.

5, water-saving irrigation is watered in the time of infertility four times, makes moisture in the soil 50 side/mus before broadcasting; Jointing booting water 40 side/mus; Take out the hero water 40 side/mus of blooming; Grouting water watered in weaving silk in back 10 days, and keeping has sufficient moisture in the soil.

6, supplementary pollination during every morning 10-11, is caught up with milpa in the pollination phase, carries out artificial supplementary pollination, and continuous 2 times, can improve the fruit ear ripening rate, reduce bald degree.

When 7, gathering in the crops the most of bract flavescence leaf of fruit ear, at this moment the abundant complete ripeness of sign seed gathers in the crops the thousand kernel weight maximum in good time.The output performance, 728 kilograms of test region average yield per mus, 621 kilograms of contrast Tian Zengjun per mu yields, 107 kilograms of average every mu of volume increase corns.

Claims

1, a kind of patterned culture technique for new corn strain, it is characterized in that comprising select soil, rational close planting, sowing date for early sowing, apply fertilizers scientifically, water-saving irrigation, seven supporting culture techniques of supplementary pollination:

It is shorter, a wide short upper punch of blade of plant type that soil is selected this new lines, the new lines that is fit to dense planting should select fertile soil deep or the field soil plantation of pouring condition is arranged, and strengthens the middle and later periods to supply water for fertile ability, guarantee that late growth stage does not take off fertilizer, thereby obtain high yield;

Rational close planting is in the more fertile plot of soil, and mu density in planting 4000-4500 strain is advisable, and has both guaranteed under this density conditions that ontogeny was good, can accomplish the population growth unanimity again;

The generally sowing before June 10 of sowing date for early sowing summer sowing corn, the mulch film seedling raising and transplanting of plastic film mulching cultivation can be done sth. in advance sowing in 7～10 days, and will accomplish to guarantee can prevent the disconnected ridge of being short of seedling by 2 of every bunch planting seeds, the favourable healthy seedling final singling of selecting and remain during thinning avoids seed directly to contact with chemical fertilizer;

Apply fertilizers scientifically and need the requirement fertilising of 2 kilograms of 3 kilograms of purity nitrogens, 1 kilogram of phosphorus pentoxide and potassium oxides according to 100 kilograms of seeds of general every production, the base manure amount of application accounts for 70% in the high-yield culturing, topdress and account for 30%, the whole bottom application of phosphate fertilizer are on last season crop, the nitrogen application principle is attacked the 60-70% that stalk fertilizer accounts for total topdressing amount, attacks ear manuer and accounts for 30-40%, attacks granulated fertilizer and uses before weaving silk, be no more than 10%, the potash fertilizer bottom application;

In the water-saving irrigation corn growth stage generally to water 4-5 water for well.Make moisture in the soil 40-50 side/mu before broadcasting; Jointing booting water 35-40 side/mu; Take out the hero water 40-50 side/mu of blooming; Grouting water keeps that in weaving silk back about 10 days sufficient moisture is arranged in the soil;

Supplementary pollination during every morning 10-11, is caught up with milpa in the pollination phase, carries out artificial supplementary pollination, and continuous 2～3 times, can improve the fruit ear ripening rate, reduce bald degree;

In good time during the most of bract flavescence leaf of results fruit ear, at this moment the abundant complete ripeness of sign seed gathers in the crops the thousand kernel weight maximum, blue or green bud results, and seed is failed maturation, and output obviously reduces.