This statistic shows the yield of wheat per harvested acre in the United States from 2001 to 2024.
The relation between yield and infestation by the maize stalk borer, Busseola fusca Fuller, is expressed as a series of regression lines for crops of different potential yields. The reasons are given for assuming that the regression is rectilinear, and that the regression coefficient b , or ...
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求问GRE逻辑题A ten-year comparison between the United States and the Soviet Union in terms of crop yields per acre revealed that when only planted acreage is compared, Soviet yields are equal to 68 percent of United States yields. When total agricultural acreage(planted acreage plus fallow acrea...
China's super rice expected to yield over 6070 kg per acre,A new kind of hybrid rice developed in China is expected to achieve a target yield of a thousand kil
12 used APSIM maize and soybean to forecast phenology and yields with and without including weather forecast data. They found that inclusion of 7 to 14 day weather forecast did not improve end of season yield prediction accuracy. There are many other examples in the literature, in which crop ...
The subject of this article is the relationships between farm size and productivity and between farm size and profitability in the developing countries. Th... R Heltberg - 《World Development》 被引量: 451发表: 2004年 Plot size and maize productivity in Zambia: is there an inverse relationship...
农作物单产:HA:棉花:瓦吉:每VISS在03-01-2017达119.000Unit/Acre,相较于03-01-2016的113.000Unit/Acre有所增长。农作物单产:HA:棉花:瓦吉:每VISS数据按年更新,03-01-1986至03-01-2017期间平均值为99.000Unit/Acre,共24份观测结果。该数据的历史最高值出现于03-01-2017,达119.000Unit/Acre,而历史最低...
Sixty kilogram of MR219 rice seeds per acre were used in both seasons for direct seeding. Field was thoroughly prepared and leveled before seeding. The farmer’s plot sizes were 0.5, 1.0 and 1.5 acres which were used as replication with farmer’s participatory research. The soil in the exper...
Yield values per crop (given in bushels/acre or lb/acre, depending on the crop) were converted to kg⋅m−2 using published conversion tables (USDA, 1992). The total area planted per county was obtained and used to compute the percentage of area planted per crop within each county, ...