From 1970 to 2000, increase in the yield is reported worldwide due to intensified crop management, improved germplasm, higher fertilizer inputs and cultivation of two or more crops a year (Cassman 1999).
Continuous cultures have continuous medium input and culture output and are ideal for investigations of the culture response to changes of particular cultivation factor.
Strategies including high fertilizer inputs and optimized cultivation methods have been used to increase grain number and enhance grain filling to maximize rice production.
The PCA results for the entire landscape show that significant variation amongst households is mainly related to the cultivation time input, on-farm income particularly from cropping activities, livestock husbandry, demographic characteristics, agricultural extension activities, and cultivation labour input.
Although the production of biofuels from starch, sugar or oil from traditional food crops, such as corn, sugarcane, soybean and canola, is relatively simple, it competes with human beings and animals for foods and requires a high energy input for cultivation of these crops.
Potential N2O hotspot areas can be categorized into the following: areas of manure accumulation, storage, and spreading; areas of high stocking intensity leading to soil compaction and high inputs of urine and dung; cultivation and grazing of forage crops; and landscape features including topography, riparian areas, and soil property effects.
And it's become increasingly obvious that agriculture based on petroleum inputs – for cultivation, spraying and harvest; for fertiliser; for global distribution – is going to have to change, fast.
Fertilizer management and cultivation of different crops may have strong effects on the decomposition of plant residues, due to the difference in nutrient inputs by the fertilizers and the difference in nutrient demand by the crops.
For the cultivation of epiphytic cacti, see Cultivation of Schlumbergera (Christmas or Thanksgiving cacti), and Cultivation of epiphyllum hybrids.
And growing hemp would be good for job creation, be a more profitable crop for farmers than others, and beneficial for the environment because of its limited input needs and other characteristics of the plant, according to Erik Hunter from Golden, who founded Hemp Cleans, a non-profit striving for regulation and cultivation of industrial hemp.
