How to write a summary of corn planting?

in p>27, the corn planting area in our city was 65, mu. According to the investigation by the agricultural technology department, the average yield per unit area reached 52.6 kg, which was 19.6 kg higher than last year's mu, with an increase of 4.1%. The total yield was 34, tons, with an increase of 8, tons and an increase of 2.7%. The average yield of the three factors is: the number of spikes per mu is 366.6, the number of grains per spike is 546.5, and the weight of 1 grains is 3 grams. At the same time, Laizhou City is still one of the implementation units of the demonstration project of science and technology to households of the Ministry of Agriculture this year. On the basis of the implementation of the project in the previous two years, through our efforts, the corn indicators required by the demonstration project were successfully passed, and the project was successfully completed. This year, Laizhou City was identified by the Ministry of Agriculture as one of the four counties and cities with different planting densities of high-yield corn in China. In September, a national on-site observation meeting on high-yield corn cultivation management was held in our city. The leaders of the Ministry of Agriculture spoke highly of the development of corn in our city. At the same time, our agricultural technology station also undertakes the higher yield of new high-yield corn varieties in Denghai seed industry. Through the implementation of the project and the development of high-yield competition activities, it has played a good role in promoting corn production in our city. The work this year is summarized as follows:

1. Strengthen leadership and organize carefully.

in order to effectively implement the demonstration project of science and technology entering households and the corn high-yield competition activities of the Ministry of Agriculture, Laizhou Municipal Government attaches great importance to it, and has specially set up a leading group and a technical guidance group. The leading group is headed by the mayor of the municipal government in charge of agriculture, and the director and deputy director of the Agricultural Bureau are deputy heads, responsible for implementing tasks, providing good materials and mechanical services, coordinating and solving problems encountered in production, and supervising and inspecting the progress of the project. The technical guidance group is headed by the stationmaster of the Municipal Agricultural Technology Station, and is responsible for formulating implementation plans, technical training, strengthening technical guidance in the field, establishing technical files in the field, solving technical problems encountered in production, doing a good job in tackling key problems in high-yield fields and doing a good job in corn yield measurement and acceptance.

from the beginning of April, the director in charge of agriculture of the Agricultural Bureau led 4 agricultural technical instructors in the city to tour 1 demonstration towns of science and technology household projects in the city, and held a "technical training course on agricultural science and technology household demonstration project", which gave unified training on the technical knowledge of corn production to the representatives of 1 demonstration households in each town. After the training meeting, combined with the implementation of the project, we took the opportunity to give technical guidance to farmers in the fields. At any time, propaganda materials such as propaganda wall charts distributed by some ministries and provinces, Fertilization Technology Series of Agricultural Science and Technology Demonstration Project and Special Issue of Farmers' Daily were distributed to all demonstration farmers in time. These propaganda work stimulated farmers' understanding of agricultural science and technology demonstration project, expanded social influence, improved farmers' scientific planting level of corn, enhanced their agricultural science and technology service ability, and created a good social atmosphere for agricultural science and technology demonstration project.

in order to welcome the on-site meeting of the national corn high-yield competition, we organized four seed companies from Chenggang Road to Sanshandao Road in this city to establish four levels of corn high-yield competition fields at the Ministry, province, prefecture and city (county) levels. Through planting and cultivation with different planting densities, the influence of planting density on yield increase was demonstrated, and the cultivation level, new varieties and new technologies of high-yield corn in our city were displayed, which provided a first-class observation site for the national high-yield corn cultivation management on-site observation meeting. The municipal party committee and municipal government of our city attached great importance to the success of this corn high-yield cultivation competition, organized relevant departments to make careful planning, held several special meetings for research and deployment, and set up a leading group of corn high-yield cultivation competition with the deputy mayor in charge of agriculture of the municipal government as the team leader, the director of agriculture as the deputy team leader, and leaders in charge of relevant departments, towns and streets as members, responsible for organizing, leading, commanding and dispatching this corn high-yield cultivation competition. There is an office under the leading group, which is located in the Agriculture Bureau. There are four groups under the office, namely, the planning and construction group, the variety collection group, the expert review group and the publicity group, which are responsible for formulating the activity plan, organizing and coordinating, variety collection, technical guidance, acceptance review and publicity reports. At present, the city has completed the planning and design of the high-yield corn competition field, land leasing, screening and determining the participating enterprises, and collecting and screening new corn varieties. Starting from June, all participating enterprises will demonstrate corn sowing, cultivation and management techniques in high-yield corn competition fields. In early October, after the corn is ripe, the city formed a special expert acceptance selection group to conduct acceptance selection, and ranked, and commended and rewarded advanced units.

2. Pay close attention to the key measures of corn planting

1. Determine the leading varieties: promote Jinhai No.5, Denghai 377, Ludan 981, Nongda 18, etc. for big spike varieties, and promote Zhengdan 958 for compact varieties.

2. Improving sowing quality

The best time for interplanting is from May 25th to June 5th; Summer direct seeding will end before June 2, and summer direct seeding is strongly advocated. Generally, the filling water of wheat can be delayed to 1-15 days before harvest according to the precipitation situation, so as to ensure the appropriate moisture content. When the soil moisture is insufficient, water the corn in time after sowing. The sowing amount is generally 2.5-3 kg/mu, which is increased or decreased according to the characteristics of varieties.

42-47 seedlings were reserved for dense and compact maize varieties, and 32-37 seedlings were reserved for large spike maize varieties. Interseedling at 3-leaf stage, fixed seedling at 5-leaf stage, and advocate leaving two plants around where seedlings are missing and ridges are broken.

3. Rational fertilization

Topdressing is the main method for summer maize, and the principle of fertilization is to apply nitrogen fertilizer steadily, increase potassium fertilizer and supplement zinc fertilizer. According to the yield index and soil fertility basis, the fertilizer amount is determined. Generally, the fertilizer requirement is calculated by applying 3 kg of pure nitrogen, 1 kg of phosphorus (phosphorus pentoxide) and 2 kg of potassium (potassium oxide) per 1 kg of grain produced in high-yield fields. In view of the current situation of maize fertilization, special attention should be paid to stabilizing nitrogen, increasing potassium and supplementing zinc.

In fertilizer operation, seedling fertilizer should be lightly applied, ear fertilizer should be heavily applied, and flower grain fertilizer should be supplemented. Seedling fertilizer: About 3% of the total nitrogen fertilizer is added with all phosphorus, potassium and zinc fertilizers before jointing of corn; Ear fertilizer was topdressing about 5% of total nitrogen at the big horn stage of corn; 2% of total nitrogen was topdressing with flower fertilizer.

4. Strengthening field management

Due to the implementation of the science and technology household project and the high-yield competition of the Ministry of Agriculture in our city, this year's corn production focuses on popularizing the science and technology of corn planting from village households to enterprises, so that demonstration households can apply these advanced technologies first, and then drive neighboring farmers to learn and use science, and use science and technology to promote agricultural production and farmers' income. In accordance with the principle of "prevention first, comprehensive prevention", priority should be given to agricultural prevention, biological prevention, physical prevention and rational application of chemical prevention, and the use of pesticides should meet the requirements of pollution-free, and vigorously promote the use of pesticides with high efficiency, low toxicity and low residue.

4. Influence of climatic conditions on maize production. This year, the rainfall of maize in the whole growth period (from June to early October) is 551.7mm, except that the sowing period of maize (only 3.9 mm in early June) is relatively dry, and the rainfall in other growth periods is relatively abundant, especially in July and August, which is 143mm and 234.5 mm respectively, meeting the water demand of maize in jointing stage and big trumpet stage, especially in mountainous hills and some dry and thin land where water cannot be poured. However, in the late stage of corn maturity, our city suffered from continuous rainy weather for more than ten days, and insufficient light was very unfavorable to the late grouting and normal harvest of corn, which caused the 1-grain weight of corn in our city to be reduced by about 1 grams compared with normal years, and some corn harvested earlier appeared mildew and germination because it could not be aired in time.

iii. tackling key problems of high-yield maize

on October 15th, 27, Laizhou science and technology bureau invited relevant experts from the maize expert guidance group of the Ministry of Agriculture, the maize professional committee and the national maize cultivation group to conduct yield measurement and acceptance on the summer maize high-yield tackling key field of Denghai Seed Industry Co., Ltd.. Acceptance results: the yield per mu of Denghai Chaoshi No.1 new variety reached 117.76 kg, and that of Chaoshi No.2 reached 1168.85 kg. The average yield of 8 mu planted in a large area is 114.87 kg. Zhengdan 958 corn high-yield field of Laizhou Jinhai Crop Research Institute covers an area of 2 mu. According to our preliminary measurement, the number of plants per mu is 5448, and the number of grains per ear is 489.3. The 1-grain weight is calculated as 34 grams per year, and the theoretical yield is 96.3 kg at a discount of .85. Jinhai No.5 corn high-yield field in Jinhai Crop Research Institute of Laizhou City covers an area of 2 mu, with 5788 plants per mu and 48.3 grains per ear. The 1-grain weight is calculated as 35 grams per year, and the expected theoretical yield is 972.9 kilograms at a discount of .85.

On October 16th, 27, Laizhou Science and Technology Bureau invited and organized relevant domestic experts to form a yield measurement and acceptance committee, and conducted on-site yield measurement on a new corn variety Jinhai 67 summer corn demonstration field of Laizhou Jinhai Seed Industry Co., Ltd. The results are as follows: the variety is Jinhai 67, and the measured total area is 3 mu. With reference to the

method and standard for field yield measurement and acceptance of high-yield and super-high-yield maize (August, 25) issued by the maize professional committee of China Crop Society, five sampling points were taken, each point was 7 square meters, and all the ears were collected, and the number of ears, fresh ear weight and seed rate at each point were measured respectively. The grain moisture content was measured by TEKK888 grain moisture analyzer, and the yield was converted according to the standard moisture content of 14%. The results are as follows: the average number of spikes per mu is 473, the average fresh spike weight per mu is 1652.63 kg, the average seed yield is 84.17%, and the grain moisture content is 27.57%, which is equivalent to 1171.53 kg per mu. All of them have achieved the yield index of super-high yield of 9 kg per mu.

Laizhou Agricultural Technology Station undertook the key research field of high-yield maize in Denghai Seed Industry, which was arranged in Dongzhao Village, Yidao Town, with an area of 3 mu and a variety of Denghai 61. We paid attention to every key link from planting to harvesting according to the requirements of the implementation plan. On October 5, Denghai Seed Industry Co., Ltd. organized maize experts to conduct yield measurement and acceptance, with an average yield of 86.9 kg. The three factors of yield were 4,951 plants per mu and 599 grains per ear respectively.

Foreword: Corn is one of the main grain crops in our county, which can be used as food for people in mountainous areas, as feed for animal husbandry and as the main material for wine making. Our county has a perennial planting area of more than 3, mu. In order to further improve the corn yield and benefit, the most effective method is to introduce new varieties, select high-yield new varieties suitable for our county from the existing domestic approved new corn varieties, explore the high yield, adaptability and stress resistance of new varieties through experiments and demonstrations, and screen out new varieties suitable for our county to improve the planting benefit of corn. 1. demonstration varieties and materials 1.1 varieties: Haihe No.2, Denghai No.3329, Dayu No.2, Huiyuan No.1, Bofeng No.19, Changcheng No.218, Linong No.2, Zhengheinuo No.1, GF-4, 3339, VN-1, Sanbei No.2132, Nongda No.364, Haihe No.13, GK198 364. 1. 2 Test site: No.1-No.12, Beizhuang Village, Xinmin Town, fengjie county, with an altitude of about 5m. 1.3 Demonstration area: 6.2 mu. 1.4 Soil type: sandy loam, the previous crop is mainly potato. 2. Demonstration method 2.1 Planting method: centralized and contiguous planting is adopted, and planting techniques are formulated according to the characteristics of varieties, and management such as cultivation and fertilization is not treated specially, which is consistent with field production. 2.2 Cultivation management: Two cultivation methods, namely, plastic film insulation seedling raising with nutrient lump and direct seeding, are adopted, and the plastic film insulation seedling raising with nutrient lump is transplanted at the 4-leaf stage. 2.3 Observation record: According to the record of sowing, cultivation and growth process, and the record of variety test at harvest time, make statistical analysis. 3. Technical Measure 3.1 Determine the suitable sowing time. Sow seedlings when the temperature is stable at 12℃. The sowing date is concentrated in late March. 3.2 Nutrition Tuo plastic film insulation seedling, medium seedling cultivation. The ingredients of the nutrient lump are prepared according to the ratio of "1533", that is, 1 kg of vegetable garden fertile soil, 5 kg of decomposed farm manure, 3 kg of phosphate fertilizer and 3 kg of zinc fertilizer. 3.3 Reasonable close planting. The production level of 2 new varieties per plant is high, which is suitable for sparse planting. The general density is 2,6 plants/mu, and single plant cultivation is implemented. 3.4 Formula fertilization. 4kg of 35% compound fertilizer should be applied per mu, and the planting fertilizer should be well applied when transplanting. After transplanting and turning green, seedling fertilizer should be lightly applied, 5kg of human excrement and urine water and 1kg of urea should be applied as jointing fertilizer per mu at 6-7 leaves, and 15—2kg of human excrement and urine water and 15-2kg of urea should be applied as ear fertilizer at big bell mouth stage. 3.5 Comprehensive prevention and control. Focus on the prevention and control of corn borer and sheath blight. 4. Management measures 4.1 The person in charge. Set up a full-time management person in charge in the demonstration village, mainly to do a good job in land implementation, technical guidance, field records, production inspection and acceptance, and organize village cadres to visit and evaluate; 4.2 Centralized contiguous and unified planning. According to the requirements of the area, focus on the film and give play to the demonstration effect. 4.3 Organize village cadres to visit and evaluate, and determine whether to promote it; 4.4 Make records, write a summary, record the growth process, field growth, yield measurement and acceptance from sowing, and write a comprehensive summary report with data, analysis and evaluation. 5. Demonstration results and analysis (see the table below) 5.1 Record of growth process:

Attachment: Record of growth process

As can be seen from the above table, the growth period of Nongda 364 is the longest, with 136 days, and Jinhai 72 is the shortest, with only 118 days (Zhengheinuo No.1 is a black waxy corn variety, which is not compared here). 5.2 Record of seed test and yield measurement:

Attachment: Table of seed test and yield measurement can be seen from the above table: Denghai 3329 has the highest yield among the 2 introduced varieties, with a yield of 691kg per mu, which is 175kg higher than Jinhai 64, which has the lowest yield per mu. Denghai 3329 is a variety with high grain number per spike and 1-grain weight, and its comprehensive status is also good, so its yield is high. The comprehensive characters of other varieties are also obviously better than Jinhai 64, but the effects of plant height and ear position height on yield are not obvious. From the above two aspects, it can be seen that the length of growth period, rows per panicle, grains per panicle and 1-grain weight are the key factors that affect the yield. All varieties with higher comprehensive indexes such as ear length, rows per panicle, grains per panicle and 1-grain weight and longer growth period have higher yield, and vice versa. From the table of growth process, it can be seen that if the growth period is too short, the yield will be lower, which shows that this area is not suitable for planting early-maturing varieties, but suitable for planting middle-late-maturing varieties. 6. Summary production demonstration shows that Denghai 3329, Haihe 2, Dayu 2, Bofeng 19, Huiyuan 1 and other varieties are all high-yield varieties suitable for local popularization and planting. These varieties have good comprehensive properties, and their yields are all above 6kg, so it is recommended to popularize them in a large area. Great Wall 218, Sanbei 2132, Agricultural University 364, Haihe No.13, Jinnong Gufeng and other varieties weighing more than 5kg can be demonstrated and popularized. For reference only.