The results showed that the optimum formula of high yield of `Yungan xiaoye' was as followed: the sowing date from 16 to 18 September,urea fertilizer input from 725.25 to 755.10 kg·hm~-2,acid phosphate fertilizer input from 735.90 to 766.05 kg·hm~-2 and density between 111 761.25 and 115 395.00 plants·hm~-2.
There were 32 optimized cultivation models for obtaining the yield of 3 000 kg/hm2 under medium fertility,in which the main determinative factors’ value was as follows: sowing date,March 25th~April 18th; planting density,57.3~61.2×104 plants/hm2; topdressing compound fertilizer at the early seedling stage,232.5~395.55 kg/hm2;
The paper analyzes the fertility performance of P,F1 ,F2,B1 and F3 groups in normal sowing time in Wuhan with the index of the rate of natural fruit,eye anther,by the hybridization of the ecological nuclear sterile male barley 9209 and fertility barley strain "Bow325wi229/Mi2269".
The small watermelons of 1. 0-2. 0kg, are planted in the highly effective sunlight greenhouse north part of our country in autumn, through reasonable arrangement sowing time, fruits may go on the market in the last ten days of November, the fruits of small watermelon are better with sweetness high, flavor thick, price good, and the benefit is extremely considerable.
The segregation on F2 in plant height of the cross from IR31851/ZR6 showed normal distribution indicating that ZR6 has sdt semidwarfing genes. And the suitable seeding time of the cross,IR31851/ZR6 is about June 10.
The experiment was conducted to study the effect of different seeding time on the yield and quality of it. The result indicated that the suitable seeding time for Liang-You 2186 is April 15 to May 25.
The highest is on May 5, they are 63.21 ±11 .66g/pot and 7.91 ±1 .45g/pot respectively. They are 25.59% and27.40% higher than those which seeding date is on April 15 and 11. 5% and 20. 4% higher than on May 25. The Amino acid content of protein in foxtail millet regularly decreases with the postopnement of seeding.
The method for determining the optimum sowing time is to measure the depth of soil thawing, accumulated temperature above 5°C both at 5 cm of the depth of of soil and in atmosphere.
The treating methods of seeds germination and the sowing time for both Japanese larch (Larix kaempferi Carr) and Dahurian larch (Larix gmelinii var.japonica Pilger) were discussed.
This is consistent with the sowing time in Asturias, which is spread over late autumn to winter.
These results demonstrate that the suites of functional attributes identified to distinguish intensive and extensive cultivation, and to recognise sowing time, can be applied in another geographical area and to another crop type.
The impact of crop processing on the reconstruction of crop sowing time and cultivation intensity from archaeobotanical weed evi
The optimal seeding time for buffalograss at the Nebraska site was late April through June and at the Utah site, April through July.
In order to improve nitrogen use efficiency and to avoid unnecessary nitrogen fertilisation, information on the minimum amount of nitrogen at seeding time and for how long the first top dressing can be delayed without yield losses will be necessary.
In the second inoculation-seeding time combination, a series of soil samples at each of the pH levels below 7.0 were relimed to pH 7.0 immediately prior to seeding.
Apply 15 to 30 pounds of nitrogen at seeding time to stimulate vigorous plant growth.
Delaying seeding time in response to delayed winter rains is a specific adaptation to climate change.