走调
发表于 2025-3-23 13:16:30
Weed Management,of the methods used to control rice weed problems depends on the type of rice culture, the technology available, and the resources of the grower. The selection of weed management inputs should emphasize maximum returns to the grower with the lowest cost.
阻挡
发表于 2025-3-23 16:40:31
Overview and Prospects of Rice Production,able detail on crop history, world production, and supply and demand up to 1978. Subsequent years saw a continuing trend in the spread of the high-yielding varieties (HYVs), rise in grain yield, increase in world production, and expansion in consumption and international trade. This chapter highligh
pellagra
发表于 2025-3-23 20:08:33
Rice Plant Growth and Development,om sowing to harvest is about 130 to 150 days. Cultivars with growth duration of 150 to 210 days are usually photoperiod sensitive and planted in the deepwater areas. Temperature and day length are the two environmental factors affecting the development of the rice plant, which can be divided into t
郊外
发表于 2025-3-24 01:37:53
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颠簸地移动
发表于 2025-3-24 03:08:41
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ONYM
发表于 2025-3-24 09:23:06
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死猫他烧焦
发表于 2025-3-24 13:45:12
Insect Pests of Rice,orton and Way 1990). Over 90% of this area lies in Asia, while the remainder is divided among Latin America, Africa, Australia, Europe, and the United States (IRRI 1989). To keep pace with projected human population growth, rice production must increase from the 1987 levels to 20% more by 2000 and 6
VERT
发表于 2025-3-24 18:44:27
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希望
发表于 2025-3-24 20:02:00
Weed Management, management programs. Cultural methods aid not only in suppressing weed growth but may be equally beneficial in enhancing rice seedling establishment and growth. Intensively farmed rice fields are areas of medium to high disturbance and low stress to achieve maximum yields. Disturbance may be viewed
灾难
发表于 2025-3-25 02:38:09
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