How Many Cauliflower Seedlings are Necessary to Estimate Experimental Precision Statistics Reliably?

How many cauliflower seedlings are necessary to estimate experimental precision statistics reliably?

Summary Enhanced-efficiency nitrogen (N) fertilizers (EENFs) such as slow-release polymer-coated urea (PCU) and deep placement of urea briquettes (UBs) improve nitrogen use efficiency (NUE) by reducing N losses and increasing nitrogen uptake by plants. Multilocation field trials (81) with cauliflower were conducted across two agroecological regions covering seven districts during two crop-growing seasons between 2018 and 2020 to assess the potential of three EENFs, i.e., PCU, sulphur-coated urea (SCU) and UB for increasing curd yields, agronomic NUE (AEN) and economic benefits over conventional urea (CU). Results were compared with farmers’ current nutrient management practice (FP): applying CU at 58.5 kg N ha−1 (ranging from 33 to 88 kg N ha−1). The N rates in three EENF treatments were 33% lower (100 kg N ha−1), considering their higher N use efficiency, than for CU (150 kg N ha−1). We hypothesize that EENFs produce similar or even higher yields compared with CU. For both years, all three EENFs resulted in significantly (p < 0.05) higher curd yields than CU (36.7 ± 1.1 t ha−1). PCU, SCU and UB increased yields by 21, 21 and 24% over those for CU. The yield increment was much higher (PCU, 44%; SCU, 43%; UB, 46%) than for FP. Similarly, PCU, SCU and UB increased the partial factor productivity of N (PFPN) by 91, 90 and 94% and the AEN by 133, 129 and 138%, respectively, compared with CU. The gross margins of all three EENFs were similar: an average 25% more than with CU and 51% more than with FP. These results suggest that EENFs could help increase productivity and farmer income while considerably reducing N input, compared to use of CU. The government of Nepal should promote these EENFs by removing barriers to access for the associated fertilizers and foster their use through extension.

Enhanced-efficiency nitrogen fertilizer boosts cauliflower productivity and farmers’ income: Multi-location and multi-year field trials across Nepal

This research aims to study the growth response of three cauliflower cultivars due to the application of liquid organic fertilizer on organic farming, to find the best concentration of liquid organic fertilizer in increasing growth of three cauliflower cultivars, and to study the interaction between concentration of liquid organic fertilizer and cultivars on growth of cauliflower. This research used a randomized block design (RBD) arranged in factorial with 2 factors and 3 replications. The first factor is the cauliflower cultivar (Snow white, Diamond 40, and PM 126), and the second factor is the dosage of liquid organic fertilizer (0, 25%, 50%, and 75%). The results showed that (1) the application of organic fertilizer is significant to increasing the plant height (2) PM 126 cultivar was a better response to cultivate on organic farming in Lampung; (3) No interaction between the dosage of liquid organic fertilizer and cauliflower cultivar on growth of cauliflower.

Impact of Liquid Organic Fertilizer Application on Growth Three Cauliflower Cultivars

Effects of varieties and seedlings age on growth and yield of cauliflower

Weather parameters influence all stages of plant growth and thereby affect the crop productivity.  Each crop has its own set of optimum and tolerable environmental conditions under which it can grow efficiently.  Knowledge about the relationships between crop growth stages and weather parameters is very important to maximize the production and productivity by adjusting the crop management practices.  For a plant to be successful in a given region, the sequences of its growth phases must fit in the climate to ensure good growth and adequate production. Agro-climatological knowledge of individual crops and individual locations is thus very essential. Vegetable crops, the important component of horticulture, assume great significance in providing food and nutritional security. Even though India ranks second in the world production of vegetables (NHB, 2011), the availability of vegetables still continues to be much low below the dietary requirements.  There is ample scope to increase the productivity by the development of location and situation specific technologies.  But the challenges before us are to produce more from shrinking land and declined water in the scenario of climate change. Cauliflower (Brassica oleracea var. botrytis) belonging to the family brassicaceae is one among the most popular vegetable crops cultivated in India. Cauliflower is very sensitive to growing conditions and for the transformation from vegetative to curd initiation phase and for the development of curd, it needs distinct climatic conditions.  So, we have to find out the relationships between the magnitude of yield fluctuations and environmental influences of the crop growing season.

https://environcj.in/wp-content/uploads/issues/2017/3/ecj-9-19.pdf

Effect of weather parameters on the growth and yield of Cauliflower

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Effect of weather parameters on the growth and yield of Cauliflower