Xinmai 18
Breeding unit, Institute of Agricultural Sciences, Xinxiang City, Henan Province. It passed the national examination and approval in 2004 (national examination and approval wheat 2004005).
The characteristics belong to semi-winter dwarf and mid-mature varieties. Strong, semi-erect seedlings, good cold resistance, strong tillering ability, high panicle rate, late jointing in spring, but fast polarization. The plant height is about 80 cm, the plant type is slightly loose, the lodging resistance is strong, the ear layer is thick, the ear is large and uniform, and the seed setting is good. Moisture resistance and late high temperature resistance, good yellowing. The comprehensive disease resistance is good, the three factors of yield are coordinated, the high and stable yield is good, the grain is horny and the grain appearance is good. High resistance to leaf rust, medium resistance to powdery mildew, stripe rust, middle susceptibility to leaf blight and sheath blight.
Key points of cultivation the variety should be sowed early from October 5 to 20, the sowing rate per mu should be 7.5 kg, and the late sowing rate should be increased appropriately; topdressing and watering at the end of jointing should be paid attention to, which is conducive to achieving the quality index of high yield, high quality and strong gluten.
The suitable area is suitable for the early and middle crop of high school water and fertilizer production in Henan Province, northern Anhui Province, northern Jiangsu Province and Guanzhong area of Shaanxi Province in the south of Huang-Huai winter wheat region.
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Jiudao 22 (formerly known as 99432)
Selection and breeding unit: Jilin Academy of Agricultural Sciences variety source: Zhuangnei 324 / rattan line 138 National quality Review Committee approval opinion: this variety is a conventional japonica rice variety, the whole growth period is about 153 days in Jilin Province, which is similar to "Qiuguang". It shows high and stable yield, medium resistance to rice blast and medium rice quality. It is suitable to be planted in the rice areas of the northern "Qiuguang" ripening period. After examination, in line with the national variety approval standards, approved and approved.
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Measures to improve the control effect of wheat straw star and isoproturon
Triticum aestivum and isoproturon are ideal herbicides to control weeds in wheat fields, but some farmers report that they are not effective in weeding. The main reasons are as follows: first, isoproturon can only control grass weeds such as wheat fields, hard grasses, but has no effect on broad-leaved workers such as cauliflower and pig calamity in wheat fields. If isoproturon is used alone, the residual density of broad-leaved weeds in wheat field must be very high, which shows that the weeding effect is not good, but the control effect of Maicaoxin on weeds in wheat field is obviously different. Second, the medication period is not appropriate, wheat grass star
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