Editor's note: The increase in output of agriculture can not be achieved without good crop varieties, so the introduction of new varieties is greatly concerned by the majority of farmers. Recently, the research institutes of the Chinese Academy of Agricultural Sciences, China Agricultural University, Beijing Academy of Agricultural Sciences and other journalists who went to Beijing in Beijing have “taken†some of the crop varieties newly cultivated by these units in the past two years that are suitable for planting in Hebei. Come back and publish it in this edition for you to choose to plant. Beijing Academy of Agriculture and Forestry Sciences Maize Research Center breeding; 1999 bred; in 2001 passed the Beijing Variety Committee certification, in March 2005 through the Hebei Province Variety Committee certification (validation number: Jue Yuyu 2005004). It is suitable for planting in the summer corn area of ​​Hebei Province. The main characteristics of the characteristics: seedling sheath purple. The plant type is semi-compact, the total number of leaves is about 20, the plant height is about 251 centimeters, the ear position is about 101 centimeters, and the summer seedling growth period is about 93 days. Tassels branch medium, filament yellow-green, anthers green. Ear-tube type, red cob, ear length of 17.6 centimeters, about 13.2 rows per ear, baldness about 1.6 centimeters, about 355 grams of grain weight, grain yellow, hard grain type, the rate of about 84.9%. Grain Quality: The results of the Hebei Province Crop Variety Quality Testing Center in 2003 showed that crude protein was 8.86%, lysine was 0.27%, fat was 4.22%, and starch was 74.18%. Disease resistance: Disease resistance appraisal results of the Institute of Plant Protection, Hebei Academy of Agricultural and Forestry Sciences, mid-2002 resistance to large spot disease, resistance to leaf spot disease, Curvularia lunata leaf spot disease, high susceptibility to stem rot, high resistance to smut, High resistance to dwarf mosaic disease, resistant to corn borer. In 2004, it was highly resistant to large spot disease, senile leaf spot disease, mid-curvate leaf spot disease, intermediate resistance to stem rot, high resistance to smut, high resistance to dwarf mosaic disease, and resistance to corn borer. Yield performance: In the summer of 2002, high-density regional test results were obtained, with an average yield of 564.2 kilograms per mu. In 2003, the results of the same group of regional tests yielded an average of 588.8 kilograms per mu. In 2003, the same group produced test results with an average yield of 523.1 kg per mu. Cultivation techniques: In the northern part of Hebei, Zhangjiakou and Chengde can be planted in spring. The appropriate planting period is from the end of April to the beginning of May. The suitable density is 3400 to 3600 plants/mu. It is planted in Beijing and central and southern Hebei in summer and is suitable for planting in the middle and late June. The suitable planting density is 3800 to 4000 plants/mu. Pay attention to balanced fertilization in management, apply nitrogen fertilizer once during jointing stage, and water in case of drought to reduce baldness caused by drought. Excerpted from: Hebei Science and Technology News, 2005.4.28.2
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