Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : I. Effects of continual direct sowing culture on the movement of inorganic nitrogen in the soil and on the growth and yield of rice6
The authors attribute the better early growth and yield of rice in the first year of direct sowing to retarded nitrification of soil inorganic nitrogen.
retardation of nitrification of inorganic nitrogene6
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“Rice YieldDecrease”
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“the better growth and yield of rice in the first year of direct sowing culture are attributed to the retardation of nitrification of inorganic nitrogen inthe soi1 in the early stage of upland conditions”
“Ongoing global warming is expected to decrease the grain yield not only by decreasing the grain weight but also decreasing the ripened grain ratio in the future.”
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“of Rice under Elevated Air Temperature Conditions”
“During seeding period shading has a major influence on the richness of seeds,leads to the remarkable decrease of kernel weight and 45.2% decrease of the yield”
“During seeding period shading has a major influence on the richness of seeds,leads to the remarkable decrease of kernel weight and 45.2% decrease of the yield”
“The results showed that:(1) In low fertilization, fiber yield, fiber length and width reached the maximums, and fiber strength and fiber line density had no significant reduction.(2) All NK fertilizer as base fertilization was beneficial to improve the fiber yield and linear density, while fiber strength did not reduce significantly.(3) Middle irrigation in seedling stage, high irrigation in vigorous growth stage and…” Show full quote
“The results showed that:(1) In low fertilization, fiber yield, fiber length and width reached the maximums, and fiber strength and fiber line density had no significant reduction.(2) All NK fertilizer as base fertilization was beneficial to improve the fiber yield and linear density, while fiber strength did not reduce significantly.(3) Middle irrigation in seedling stage, high irrigation in vigorous growth stage and…” Show full quote
“The results showed that:(1) In low fertilization, fiber yield, fiber length and width reached the maximums, and fiber strength and fiber line density had no significant reduction.(2) All NK fertilizer as base fertilization was beneficial to improve the fiber yield and linear density, while fiber strength did not reduce significantly.(3) Middle irrigation in seedling stage, high irrigation in vigorous growth stage and…” Show full quote
“Artificially pollinating resulted in decrease in soluble sugar and starch content of leaf and stem, but increase of root, which led to significant increasing in yield.”
“Vegetable soybean is generally planted in the south of China”
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“With the increasing of planting density,plant height and height of lowest pod increased significantly,stem width and branching number decreased greatly,upper leaves obviously became small,SLW and CC significantly decreased,biggest LAI increasd,and PP showed increase and then decrease trend”
“Vegetable soybean is generally planted in the south of China”
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“With the increasing of planting density,plant height and height of lowest pod increased significantly,stem width and branching number decreased greatly,upper leaves obviously became small,SLW and CC significantly decreased,biggest LAI increasd,and PP showed increase and then decrease trend”
“Vegetable soybean is generally planted in the south of China”
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“With the increasing of planting density,plant height and height of lowest pod increased significantly,stem width and branching number decreased greatly,upper leaves obviously became small,SLW and CC significantly decreased,biggest LAI increasd,and PP showed increase and then decrease trend”
“under the lack of phosphate, phosphate content, Rubisco activity, rate of RuBP regeneration, apparent quantum yield (AQY), photochemical efficiency of PSⅡ(Fv/Fm)and electron transport rate (ETR) decrease”
“under the lack of phosphate, phosphate content, Rubisco activity, rate of RuBP regeneration, apparent quantum yield (AQY), photochemical efficiency of PSⅡ(Fv/Fm)and electron transport rate (ETR) decrease”
“under the lack of phosphate, phosphate content, Rubisco activity, rate of RuBP regeneration, apparent quantum yield (AQY), photochemical efficiency of PSⅡ(Fv/Fm)and electron transport rate (ETR) decrease”
“Compared with Wuxiangjing 99-8,Zhonghan 3 exhibited a faster decrease in N content after heading,smaller N accumulation in plants,greater proportion of N in leaves and grains and smaller in the culms and sheaths,higher N efficiency of matter production(at maturity) and grain yield production,greater N harvest index,and lower grain yield.”
“Compared with Wuxiangjing 99-8,Zhonghan 3 exhibited a faster decrease in N content after heading,smaller N accumulation in plants,greater proportion of N in leaves and grains and smaller in the culms and sheaths,higher N efficiency of matter production(at maturity) and grain yield production,greater N harvest index,and lower grain yield.”
“Compared with Wuxiangjing 99-8,Zhonghan 3 exhibited a faster decrease in N content after heading,smaller N accumulation in plants,greater proportion of N in leaves and grains and smaller in the culms and sheaths,higher N efficiency of matter production(at maturity) and grain yield production,greater N harvest index,and lower grain yield.”
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Oryza sativat0
Gossypium hirsutum
Fusarium
Hibiscus cannabinus
Medicago sativa
Wurfbainia villosa
Citrus unshiu