The purpose of this study was to evaluate doses sulfur applied at topdressing, with and without organic compost supply planting, in the production, physiological quality content macronutrients lettuce seeds. Ten treatments were evaluated a 5x2 factorial scheme (five topdressing x application planting). experimental design randomized block design, four replicates. fertilization 50, 100, 150 200 ...

The requirement for ‘cobalt (Co) of ruminants grazing pastures on the pumice soils of the Central Plateau was established in the late 1930s and Co topdressing to increase the Co intake of animals became commonplace from the mid-1950s. An on-farm survey in 1978-79 indicated that Co inputs could be halved because of adequate reserves of soil Co accumulated since the 1950s. However, the economic d...

The adoption of diversified agricultural systems that employ integrated cultural practices appears to be the way sustainably intensify tropical agriculture. Our objectives were evaluate dry matter (DM) accumulation sorghum inoculated with Azospirillum brasilense, or without a nitrogen fertilization split, intercropped palisade grass (Urochloa brizantha cv. BRS Paiaguás), and how these influence...

Topdressing accounts for approximately 40% of the total nitrogen (N) application winter wheat on Huang-Huai-Hai Plain in China. However, N use efficiency topdressing is low due to inadaptable method used by local farmers. To improve wheat, an optimization (THP) proposed that uses unmanned aerial vehicle (UAV)-based remote sensing accurately acquire growth status and improved model potential est...

Three-year field trials were set up on eutric brown soil in northwestern Croatia (Zagreb) with the objective to determine the effect of plant density and nitrogen rates on the formation and size of leaf area of seed sugar beet, and on the yield and seed quality in seed production without transplanting. Investigations should also reveal how much the yield and quality of sugar beet seed depend on...

A large amount of nitrogen fertilizer is applied in maize planting Northeast China, but the recovery rate low, causing a series water and soil environmental problems farmland areas. Thus, based on isotope tracing technology combining field plot test with an situ microzone test, we carried out experiment under reduced conditions. Five different application levels were set: conventional (N1: 250 ...

ABSTRACT The response capacity of the bean to fix atmospheric nitrogen is questionable, mainly due its inability supply all in flowering and grain filling phases when crop needs it most. Thus, a new application inoculant can keep population rhizobia soil at adequate levels, meeting demands plant. This study aimed investigate nodulation production beans submitted doses reinoculation Rhizobium to...

Saline-alkali stress adversely affects crop growth and nutrient absorption, thereby reducing yield quality. Exogenous amino acids have multiple synergistic effects; however, whether a preparation containing increases the resistance of pakchoi to saline-alkali soil remains unclear. This study investigated effects patented “preparation” on growth, tolerance in (Brassica chinensis L.), using pot c...