The fitted model is then used to predict the crop production at the block level. Some scaled estimators are also developed using predicted estimates. An empirical study is also carried out to judge the merits of the proposed estimators.
the development of both new crop technology and existing production methods, allowing free choices for consumers. legco.gov.hk 該計劃的目的是在丹麥建立一個可 讓基因改造、傳統及有機農作物並存的模式,而該模式將會支援新的 農作物技術和現有生產方式的發展, 從而讓消 費者 自由選擇。 legco.gov.hk[...
Estimation of the variability in global warming potential of worldwide crop production using a modular extrapolation approach The agri-food sector, and specifically agricultural production, is a major contributor to climate change. In order to manage the impact on the climate, a b... Nemecek,Weiler...
In a new book titled "Ghana's Economic and Agricultural Transformation: Past Performance and Future Prospects", researchers have established that this pattern of crop production is unsustainable and environmentally damaging. The authors are Danielle Resnick, a senior research fellow, and Xinshen Diao, ...
DAISY, a mechanistic model for the simulation of crop production, soil water and N dynamics in agro-ecosystems, was used for simulating trends in total soi... LS Jensen,T Mueller,NE Nielsen,... - 《Geoderma》 被引量: 1126发表: 1997年 FACE-ing the global change: Opportunities for improvem...
根据第二段中Globalwarmingthreatenseveryaspectofoureverydaylives,includingcropproduction.Itwillreducethesoilmoisture(水分)inareasclosetotheequatoraccordingtoastudy.Wearealreadyseeingthenegativeimpactofthesechangedgrowingconditionsonourcropproduction.Climatechangeharmspoorercountriesthatdonothavethemoneytoimportfood.The...
One exemplary method for increasing a yield of a crop includes controlling plant tissue stress by at least partially coating a plant tissue with a composition comprising an agricultural sunscreen formulation and a second agricultural chemical. The agricultural sunscreen formulation and the second ...
A fine crop/yieldof coin玉米收成(产量)不错 ⑧ Non-CO2 emissions of fish and seafood were calculated on the basis of feed requirements and feed-related emissions of aquaculture, and on projections of the ratio between wild-caught and farmed fish production. ...
of plant breeding that have been developed for particular categories of crop plants, to explain the reason why particular methods are chosen for certain types of crop-improvement problems, and to give methods of field-plot technique and of statistical analysis that are adapted for particular uses'...
According to the Ministry of Agriculture and Rural Affairs, China currently has more than 2,500 agricultural machinery enterprises, and its mechanization rate for crop cultivation and harvesting exceeded 67 percent in 2018. The country's agricultural production is now mainly done by farming machines,...