Open Access Short Research Article

Nutritional Value and In sacco Rumen Degradability of Pod and Leaf Meals from Raintree (Samanea saman) in Comparison with a Commercial Dairy Feed

Chumpholchai Phreyamittrachaiya, Suntorn Wittayakun

Journal of Experimental Agriculture International, Page 16-21
DOI: 10.9734/jeai/2021/v43i830721

The objective of this study was to evaluate nutritive values and in sacco rumen degradability of pod and leaf meals, derived from raintree (Samanea saman), in comparison with a commercial dairy feed for decision making of smallholder dairy farmers for efficient management of local feed resources. Treatments were: raintree pod meal (RPM), raintree leaf meal (RLM), and commercial dairy feed (CDF). The experiment was assigned in a completely randomized design. The results indicated that RPM, RLM, and CDF had the same amount of crude protein (CP) content (P =.17), whereas RLM was the highest in neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents while CDF was the lowest in NDF and ADF (P =.001). Dry matter disappearances at various incubated times were the highest for RPM, followed by CDF, and RLM, respectively (P =.001). The rapidly soluble dry matter fraction (a) was the highest for RPM (P =.023), while the insoluble but fermentable fraction (b) was the highest for CDF (P =.001). The constant degradation rate of b (c) did not differ among treatments (P = .095). The potential degradability (PD) was the highest for CDF, compared with RPM, and RLM, respectively (P =.001). In contrast, the effective degradability (ED) parameters was the highest for RPM, followed by CDF and RLM, respectively (P =.001). Overall, this work demonstrated that RPM is more beneficial than RLM compared with CDF in nutritional values and degradability characteristics. Hence, RPM is recommended as an alternative local feed source for dairy cows raised by smallholder dairy farms in the tropics.

Open Access Original Research Article

Effect of Integrated Nutrient Management on Nutrient Concentration of Wheat Crop (Triticum aestivum L.)

Anuj Kumar, Uma Shankar Tiwari, Kamlesh Kumar Yadav, Pankaj Kumar Singh, . Sulekha, Ashesh Narayan

Journal of Experimental Agriculture International, Page 1-15
DOI: 10.9734/jeai/2021/v43i830720

A field experiment was conducted during the rabi season of 2013-14 and 2014-15 at Chandra Shekhar Azad University of Agriculture and Technology, Kanpur to evaluate the integrated nutrient management on nutrient concentration. The experiment was comprising sixteen  treatments viz. T1- control, T2- 100% RDF,T3- 100% RDF+S, T4- 100% RDF+S+Zn, T5- 100% RDF + S + Zn + bio-fertilizer (Azotobactor+ P.S.B.), T6- 100% RDF + 25% N through F.Y.M., T7- 100% RDF + 25% N through FYM + S, T8- 100% RDF + 25% N through FYM + S + Zn, T9-100% RDF. + 25% N through F.Y.M. + S + Zn + bio-fertilizer  (Azotobactor+ P.S.B.), T10-100% RDF + 25% N through vermi compost, T11- 100% RDF + 25 % N through vermicompost + S + Zn + bio-fertilizer (Azotobactor+ PSB), T12- 75 % RDF T13- 75 % RDF + 25 % N through FYM T14- 75% RDF + 25% N through vermi compost, T15-75% RDF + 25% N through FYM + S + Zn + bio-fertilizer (Azotobactor+ P.S.B.) and T16- 75% RDF + 25% N through vermi compost + S + Zn + bio-fertilizer (Azotobactor+ P.S.B.). Contents of N, P, K, S and Zn. Increased linearly and non-significantly except N content in grain and straw and Zn content at all the stages of crop growth in comparison to control. Highest concentration of N, P, K, S and Zn at late tillering, milking and at harvest in grain and straw was recorded with T11 (100% R.D.F. + 25% N through vermicompost+S + Zn + bio- fertilizers (Azotobactor+P.S.B.) followed by T9 (100% R.D.F. + 25% N through F.Y.M. + S + Zn+bio-fertilizers   (Azotobactor+P.S.B.) and minimum at control (T1) during both the years. Integration of sulphur, zinc, bio-fertilizers, FYM and vermicompost with 100% RDF and 75% RDF treatments also influences N, P, K, S and Zn content at all the stages of crop growth during both the years. It was also observed that integration of sulphur and zinc showed higher increases and its content also increase the concentration of others nutrients higher with 100% RDF treatments in comparison to 75% RDF treatments. The higher concentration of N, P, K, S and Zn to be attributed to higher availability and synergistic effects of these nutrients to each other at all the stages of crop growth.