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An experiment in factorial format based on randomized complete block design with 3 replications was conducted to study the effects of zinc spray (0 and 1 g/L) and nitrogen fertilizer (0, 25, 50 and 75...
A common crop rotation in the west Iran is wheat-fallow-corn. The fallow period after wheat harvest (during fall and winter) can lead to soil erosion, nutrient losses (e.g. nitrate leaching) and offsi...
Urea-formaldehyde (UF) (38% N) was used as a slow release nitrogen fertilizer on four fruit seedling species (grape, mango, banana and date palm) comparing with the traditional urea (46% N) to invest...
The grain yield and grain protein content of winter triticale in dry farming can be significantly affected by environmental conditions and different nitrogen (N) levels. Two year field trials with six...
Labor-saving for fertilization has been strongly desired due to the shortage in labor and increasing scale of farming for rice cultivation. In order to clear these problems, the effect of application ...
The influence of soil conditions on increase of nitrogen assimilation and yield as a result of supplemental nitrogen fertilizer application at flowering were examined with soybean (Glycine max L. Merr...
Effects of (NH4)2SO4 top-dressing at the flowering stage to soybeans were investigated in view of its nitrogen fixation and assimilation. Possibility of estimating nitrogen fixation by time course mea...
This study was carried out to clarify the effect of controlled rhizophere sizes on various characteristics of each organ at the heading and maturing stage in paddy rice plants (Oryza sativa L., cv. N...
A glasshouse pot sand culture experiment was conducted to determine the effects of three levels of combined nitrogen-0N (0), 1N (100), 2N (200 pm) -on nitrogen nutrition, seed protein and oil content ...
The effect of nitrogen fertilizer on biomass production, nodulation, seed yield and CO2 exchange was determined in soybean (Glycine max Merr. cv. Akiyoshi) grown in a pot sand culture in a glasshouse....
Single application of total nitrogen fertilizer with controlled-release coated urea on non-tilled rice culture (LP-plot) was compared with a conventional application method using easily released nitro...
The supernodulating soybean genotype Sakukei 4 is potentially high-yielding. We characterized its leaf nitrogen (N) content, photosynthesis and growth at different developmental stages and under diffe...
The effects of the amount of nitrogen fertilizer on the starch metabolism of rice leaf sheath during the heading period in the japonica rice variety, cv. Nipponbare were compared with those in the ind...
Environmental resources for rainfed rice production show large variability even within a small area in Northeast Thailand, and it is said that farmer’s management is well adapted to the variability. T...
The physiological responses of pot-grown tea plants to various levels of nitrogen fertilizer were investigated to determine the suitable level of nitrogen for tea plants. Defining an arbitrary unit of...

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