Ophioglossum nigrum
Ophiopogon japonicus, Ophiopogon japonicus, caviar orchid
Ophiopogon of Liliaceae
It is native to China and also distributed in Japan. Like warm and humid climate, do not choose soil, but grow most luxuriantly on fertile, well-hydrated sandy loam.
Plant height 30cm, fascicled. The rhizome is short and thick, the whisker root system, and the middle part of the whisker root expands into a fusiform fleshy tuber. The stolon extends flat. Leaf blade finely linear, slightly leathery, raceme, ca. 12cm, flowers 5 in 9 whorls, 4 in each round, pedicels short and erect; flowers lilac or nearly white. The berries are round, dark brown or blue-black when ripe. The flowering period is from June to July, and the fruit ripening period is from August to October.
Sowing or split-plant propagation, about 10 days emergence, the next year flowering. The ramets were divided every 2-3 years and were carried out from March to April. Should be planted in a well-ventilated semi-shady environment and always keep the soil moist. Potted Ophiopogon japonicus needs to be moved under the shade in summer and into the cold bed or cold room in winter.
Because of its low plant and long green period, Ophiopogon japonicus can be used as ground cover plant at the edge of rock, rockery and steps in garden. it is also suitable to be used as edge material or pot ornamental for flower bed, flower border, tree bed and flower path.
Common cultivated species are Ophiopogon japonicus and Ophiopogon japonicus.
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Brief introduction of a New late Japonica Rice Variety Zhejing 30
Zhejiang Jing30 was approved by the 27th Variety approval meeting of Provincial Agricultural articles Review Committee in March 2003. In the provincial regional test in 2000, the average yield per mu of this variety was 428.74 kg, which was 0.12% lower than that of the control Xiushui 63, which was not significant. In the provincial regional test in 2001, the average yield per mu was 506.19 kg, 10.7% higher than that of the control Xiushui 63, reaching a very significant level. In the production test in 2002, the average yield per mu was 445.6 kg, which was 2.5 higher than that of Xiushui 63.
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Fine classification of wheat seedlings for skillful management of diseases
After the emergence of wheat seedlings, different types of weak seedlings are often formed due to the influence of natural conditions and cultivation measures. The prevention of weak seedlings and symptomatic management are introduced as follows: weak seedlings caused by soil drought mostly occur in wheat fields where soil moisture is insufficient or ventilated, which is characterized by slow tillering, gray-green leaves, short heart leaves, slow growth or stagnation (called by the masses as "shrinking seedlings"), yellow and dry leaves in the middle and lower parts, and few and thin roots. Key points of management: combined with watering, 15 kg ammonium bicarbonate per mu.
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